P0299

Turbocharger/Supercharger "A" Underboost Condition

DTC P0299, sometimes indicated as P029900 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing turbocharger/supercharger "a" underboost condition.

The P0299 code means that the turbocharger or supercharger is not working properly. This can be caused by a variety of things, including a clogged air filter, a malfunctioning turbocharger, or a leak in the intake system.
The first step in fixing this code is to identify the cause. Once the cause is identified, the appropriate repairs can be made. If the problem is with the turbocharger, it may need to be replaced. If there is a leak in the intake system, that needs to be fixed as well.

P0299: Turbocharger/Supercharger A Underboost Condition
P0299: Turbocharger/Supercharger "A" Underboost Condition
P0299: Turbo/Super Charger UnderBoost
P0299: Turbocharger (TC)/supercharger (SC) – low boost
P0299 00: Turbocharger (TC)/supercharger (SC) - low boost

See Also: Related Error Codes

DTC Trouble Code Search

Bulletins

Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

22-NA-007 - ENGINE AND ENGINE COOLING
CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
18-NA-020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
2112102031245 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: P0299 negative pressure deviation, turbocharger excessive wastegate play
15NA084 - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CHEVROLET: Diagnostic tips for engine running rough, poor acceleration, smell of exhaust inside cabin, possible P0101, P0299, P2002, P2263 or P2463 dtcs set
15NA084 - ENGINE AND ENGINE COOLING
CHEVROLET: Diagnostic tips for engine running rough, poor acceleration, smell of exhaust inside cabin, possible P0101, P0299, P2002, P2263 or P2463 dtcs set
18-NA-020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
18-NA-020 - ELECTRICAL SYSTEM
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
2063954.5 - ENGINE AND ENGINE COOLING
BENTLEY: Engine warning light illuminated within the dip during acceleration - dtc P029900 evident - w12 tsi only customer statement: -engine warning light and max engine speed 4000 rpm warning evident within the dip during acceleration - warning
TB011312 - ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
VOLKSWAGEN: Update programming, mil on, faults P0299, P0403, P20EE, P229F, P2100, P0045, P2008, P24AF, P026A, and/or P050E stored in ecm fault memory
21-NA-293 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides repair information to correct a customer concern of poor engine performance in extremely cold weather conditions, charge air cooler icing - malfunction indicator lamp (mil) illuminated, dtc P0299, P0234, p02
211406 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
VOLKSWAGEN: Check engine light on, reduced performance or noise from turbocharger. Dtc P0299 may be stored in ecm.
211405 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
VOLKSWAGEN: Check engine light on, reduced performance or noise from turbocharger. Dtc P0299 may be stored in ecm.
211403 - LANE DEPARTURE
VOLKSWAGEN: Engine lacks performance, engine warning light on, dtcs P2563, P2564, P0299 or P20D8 stored in ecm fault memory
211402 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
VOLKSWAGEN: Check engine light on, reduced performance or noise from turbocharger. Dtc P0299 may be stored in ecm.
PIP5927 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET: This preliminary information communicates the possibility of reduced power with dtc P0237 and/or P0299 due to damaged charge air inlet pipe connection at turbocharger
TT200906 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
VOLKSWAGEN: Use the diagram below to test the n75 solenoid valve in the event of a turbocharger fault code such as P0299 or P0234. This applies to mechanical injection style diesel engines, pumpe duse style diesel engines and the new common rail style
2063954.4 - ENGINE AND ENGINE COOLING
BENTLEY: Engine warning light illuminated within the dip during acceleration - dtc P029900 evident - w12 tsi only customer statement: -engine warning light and (max engine speed 4000 rpm) warning evident within the dip during acceleration - warnin
22-NA-007 - ENGINE AND ENGINE COOLING
CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
23-NA-045 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides repair information to correct a customer concern of engine rpo l3b P0299 service calibration.
PIP5905 - ELECTRICAL SYSTEM
CHEVROLET: This preliminary information communicates to the dealers information related malfunction indicator lamp (mil) illuminated in the driver information center (dic). Technicians may find dtc P0299 may be stored current or in recent history. Tec
PIP5903 - ELECTRICAL SYSTEM
CHEVROLET: This preliminary information communicates to the dealers information related to updating the engine control module calibrations for a dtc P0299.
18-NA-020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
PIP5829A - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communicates to the dealers information related to diagnosis of a mil illuminated with dtc P0299 and/or cold start rattle noise from the engine compartment.
PIP5889A - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communicates the possibility of dtc P0299 due to a stuck open charge air bypass valve
PIP5812C - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing in turbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
23-NA-002 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides repair information to correct a customer concern of charge air cooler (cac) icing, check engine lamp illuminated, possible P0299, P2227, and/or P0300 dtcs set.
18-NA-020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227. .
S2018000007 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
S2018000007 - ENGINE AND ENGINE COOLING
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
S2218000022 - ELECTRICAL SYSTEM
JEEP: Perceived low power/acceleration lag, and/or malfunction indicator lamp (mil) illumination, diagnostic trouble codes (dtcs) P0299 turbocharger underboost and/or P026D ? Fuel injection quantity higher than expected, set.
18-NA-020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
PIP5889 - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET: This preliminary information communicates the possibility of dtc P0299 due to a stuck open charge air bypass valve
PIP5651G - POWER TRAIN
CHEVROLET: This preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101
22-NA-224 - ENGINE AND ENGINE COOLING
CHEVROLET: This service bulletin provides a repair procedure to correct a customer concern of reduced engine power, malfunction indicator lamp (mil) illuminated - dtcs P0101, P0172, P0299, P0506, and/or P1101 set.
22-NA-007 - ENGINE AND ENGINE COOLING
CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
S2018000011 - ELECTRICAL SYSTEM
ALFA ROMEO: Issue includes a fault code(s) set in the powertrain control module (pcm) for P0299, P0300, P0301, P0302, P0303, and/or P0304 after performing the pcm software update process for customer satisfaction notification (csn) w05.
S2018000008 - POWER TRAIN
ALFA ROMEO: Engine surge feel and/or diagnostic trouble code P0299 ? Turbo underboost condition after updating the powertrain control module (pcm) software. (etl, etm, etn engines)
S2018000007 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
S2018000007 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
S2018000007 - BACK OVER PREVENTION
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
S2018000007 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
S2018000007RevB - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
18-NA-020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
PIP5710A - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communicates the possiblilty of the charge air cooler tube becoming disconnected from the throttle body and causing reduced power with dtc P0172 P0299 P0101 P0506 P1101
142120390062 - POWER TRAIN
AUDI: The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall of due to low tension of the clip. Consequently, the wastegate linkage becomes disconnected, causing mil on and dtc P029900.
142020390061 - POWER TRAIN
AUDI: The circlip connecting the turbo wastegate actuator rod and the wastegate flap lever can fall of due to low tension of the clip. Consequently, the wastegate linkage becomes disconnected, causing mil on and dtc P029900.
141820312457 - ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
AUDI: Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets dtc P029900 (negative pressure
131620312456 - PARKING BRAKE
AUDI: Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets dtc P029900 (negative pressure
131420312455 - PARKING BRAKE
AUDI: Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets dtc P0299 (negative pressure d
131320312454 - PARKING BRAKE
AUDI: Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets dtc P0299 (negative pressure d
131220312453 - PARKING BRAKE
AUDI: Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets dtc P0299 (negative pressure d
131120312452 - PARKING BRAKE
AUDI: Under certain driving conditions, the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This leads to boost escaping through a loose flap, which sets dtc P0299 (negative pressure d
21NA293 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides repair information to correct a customer concern of poor engine performance in extremely cold weather conditions, charge air cooler icing - malfunction indicator lamp (mil) illuminated, dtc P0299, P0234, p02
TSB 22-2198 - ENGINE AND ENGINE COOLING
FORD: Some 2021-2022 f-150 raptor/tremor vehicles equipped with a 3.5l ecoboost engine may experience reduced engine power with an illuminated malfunction indicator lamp (mil) and diagnostic trouble code (dtc) P0299 stored in the powertrain contr
22-NA-007 - ENGINE AND ENGINE COOLING:ENGINE:SOLENOID/ACTUATOR
CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
18-NA-020 - STRUCTURE
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
A0122212067162_1 - ENGINE (PWS)
AUDI: This bulletin states that if dtc P029900 is present, technicians should check the boost pressure against specifications and possibly replace the intercooler air charge pipe.
22NA007 - ENGINE AND ENGINE COOLING
CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
18NA020 - EXTERIOR LIGHTING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
22-NA-007 - ELECTRICAL SYSTEM
CHEVROLET: This service bulletin provides procedures to correct customer concerns of poor engine performance in extremely cold weather conditions, charge air cooler (cac) icing - malfunction indicator lamp (mil) illuminated with dtcs P0299, P0234, p02
TSB150162 - ELECTRICAL SYSTEM
FORD: 1.6l gtdi - lack of power with mil illuminated - dtcs P0234, P0245, P0246 and/or P0299. Some 2013-2016 escape 2014-2016 fiesta st, and 2013-2014 fusion vehicles equipped with a 1.6l gasoline turbocharged direct injection (gtdi) engine may e
PIP5829 - ENGINE (PWS)
CHEVROLET: This preliminary information communicates to the dealers information related to diagnosis of amil illuminated with dtc P0299.
PIP5812C - ENGINE (PWS)
CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing inturbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
PIP5812B - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing inturbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
2063954/3 - ELECTRICAL SYSTEM
BENTLEY: Engine warning light illuminated within the dip during acceleration - dtc P029900 evident - w12 tsi only customer statement: engine warning light and max engine speed 4000 rpm warning evident within the dip during acceleration - warning o
PIP5651F - STRUCTURE
CHEVROLET: This preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codesP0172, P0299, P0101
PIP5812 - ENGINE (PWS)
CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing inturbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
PIP5651E - STRUCTURE
CHEVROLET: This preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codesP0172, P0299, P0101
PIP5812A - POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY
CHEVROLET: This preliminary information communicates the possibility of dtc P0299 P0234 setting due to oil/moisture cndensate freezing inturbocharger wastegate regulator solenoid valve (tcv) during cold weather driving
15-NA-084 - ENGINE (PWS)
CHEVROLET: Diagnostic tips for engine running rough, poor acceleration, smell of exhaust inside cabin, possible P0101, P0299, P2002, P2263 or P2463 dtss set
TSB 21-2272 - ELECTRICAL SYSTEM
FORD: Some 2021 f-150 vehicles equipped with a 2.7l ecoboost engine and built on or before 14-jun-2021 may experience lack/loss of power with an illuminated malfunction indicator lamp (mil) and diagnostic trouble code (dtc) P0299 in the powertrai
2063954/1 - ELECTRICAL SYSTEM
BENTLEY: Engine warning light illuminated within the dip during acceleration - dtc P029900 evident - w12 tsi only customer statement: engine warning light and max engine speed 4000 rpm warning evident within the dip during acceleration - warning o
SSM 49960 - ENGINE AND ENGINE COOLING
FORD: Some 2021 f-150 vehicles equipped with a 2.7l ecoboost engine may experience a lack/loss of power with an illuminated malfunction indicator lamp (mil) and diagnostic trouble code (dtc) P0299 in the powertrain control module (pcm). This may
S2018000007 Rev. - ENGINE AND ENGINE COOLING
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
PIP5495N - EXTERIOR LIGHTING
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
21NA074 - EXTERIOR LIGHTING
BUICK: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
18NA020 - VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:AIR HANDLER/CHAMBER, DUCTS, AND VALVES
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
17408 - ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
CADILLAC: Potential turbo turbine wheel failure/mil illuminated with dtc P0299 or P16E7. Correction reprogram ecm with a new calibration.
PIP5495M - EXTERIOR LIGHTING
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
S2018000007 Rev. - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
KC-2020 - ENGINE AND ENGINE COOLING
MACK: Diagnostic trouble codes P029900 or P226C00 with possible P115100 - us17+obd19 emissions and newer
KC-2020 - ENGINE AND ENGINE COOLING
VOLVO: Diagnostic trouble codes P029900 or P226C00 with possible P115100 - us17+obd19 emissions and newer
S2018000011 - EQUIPMENT ADAPTIVE/MOBILITY
ALFA ROMEO: Issue includes a fault code(s) set in the powertrain control module (pcm) for P0299, P0300, P0301, P0302, P0303, and/or P0304 after performing the pcm software update process for customer satisfaction notification (csn) w05.
S2018000007 Rev. - ENGINE (PWS)
RAM: (revision a) diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
PIP5710A - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communicates the possiblilty of the charge air cooler tube becoming disconnected from the throttle body and causing reduced power with dtcP0172 P0299 P0101 P0506 P1101
PIE0569B - ENGINE (PWS)
CHEVROLET: This engineering information (ei) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to loss of power, hesitation and/or stalls, dtcs P0172, P0299, P0101, P0506 and/or p1
PIP5495M - ENGINE (PWS)
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
TSB 20-2246 - POWER TRAIN
FORD: Some 2020 explorer vehicles equipped with a 2.3l ecoboost engine built on or before 14-jul-2020 may exhibit an illuminated malfunction indicator lamp (mil) with diagnostic trouble code (dtc) P0299. This may be due to the software in the pow
S2018000008 - POWER TRAIN
CHRYSLER: Engine surge feel and/or diagnostic trouble code P0299 ? Turbo underboost condition after updating the powertrain control module (pcm) software. (etl, etm, etn engines)
S2018000007 - ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
RAM: Diagnostic trouble code (dtc) P0299 ? Turbocharger underboost additional diagnostics
PIE0569 - ENGINE (PWS)
CHEVROLET: This engineering information (ei) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to loss of power, hesitation and/or stalls, dtcs P0172, P0299, P0101, P0506 and/or p1
TSB 20-2152 - ELECTRICAL SYSTEM:SOFTWARE
FORD: Some 2019 ranger vehicles may exhibit an illuminated malfunction indicator lamp (mil) with diagnostic trouble code (dtc) P0299 stored in the powertrain control module (pcm). This may be due to various software parameters within the pcm. To
18NA020 - ENGINE (PWS)
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
18NA020 - EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
PIP5710 - ENGINE (PWS)
CHEVROLET: This preliminary information communicates the possiblilty of the charge air cooler tube becoming disconnected from the throttle body and causing reduced power with dtcP0172 P0299 P0101 P0506 P1101
PIP5495L - EQUIPMENT ADAPTIVE/MOBILITY
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
18NA020 - EXTERIOR LIGHTING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
18NA020 - ELECTRICAL SYSTEM
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
PIP5495K - ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
PIP5651D - EQUIPMENT
CHEVROLET: This preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codesP0172, P0299, P0101
PIP5651C - EQUIPMENT:APPLIANCE:AIR CONDITIONER
CHEVROLET: This preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codesP0172, P0299, P0101
PIP5651B - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codesP0172, P0299, P0101
PIP5651A - ENGINE AND ENGINE COOLING:COOLING SYSTEM
CHEVROLET: This preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codesP0172, P0299, P0101
18NA020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
PIP5651 - POWER TRAIN
CHEVROLET: This preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codesP0172, P0299, P0101
PIP5649 - FUEL SYSTEM, GASOLINE
CADILLAC: This preliminary information communicates to the dealer that a customer may comment that their mil is illuminated due to a P0299 set current or in history. It contains diagnostic tip information related to a potential empty fuel level conce
PIP4825A - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
CADILLAC: This preliminary information advises tech to look for hoses at wastegate damaged by clamp for P0299 setting.
PIP5495J - ENGINE (PWS)
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
TSB19-2143 - ENGINE AND ENGINE COOLING
FORD: Some 2011-2016 f-super duty vehicles equipped with a 6.7l diesel engine may exhibit a lack of power and/or illuminated malfunction indicator lamp (mil) with diagnostic trouble code (dtc) P0299 in the powertrain control module (pcm). This ma
PIP5643 - ELECTRICAL SYSTEM
CADILLAC: This preliminary information communicates the possibility of the wastegate retaining clip on the wastegate lever falling off and causing dtc P0299.
PIE0503B - ENGINE (PWS)
CHEVROLET: This engineering information pi ends the need for information from the field on reduced engine power, dtc P0299 set.
18NA020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
PIE0503A - ENGINE AND ENGINE COOLING
CHEVROLET: This engineering information pi ends the need for information from the field on reduced engine power, dtc P0299 set.
PIE0503 - ENGINE AND ENGINE COOLING
CHEVROLET: This engineering informational bulletin is requesting information from the field on reduced engine power, dtc P0299 set.
18NA020 - EQUIPMENT:APPLIANCE:AIR CONDITIONER
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
NTB19-017 - EQUIPMENT
NISSAN: 2016-2019 titan xd diesel; mil on with dtc P0299 for boost pressure this bulletin applies only to vehicles equipped with a cummins 5.0l v8 diesel engine. If you confirm the mil is on with dtc P0299 (boost pressure) stored and - the
18NA020 - ENGINE AND ENGINE COOLING
CHEVROLET: This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with dtc P0300 and/or P0299/P2227.
PIP5495H - ENGINE (PWS)
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
LTB01254NAS1 - ELECTRICAL SYSTEM
LAND ROVER: The engine mil (malfunction indicator lamp) may be illuminated and a restricted performance message may be displayed. Upon further investigation, dtc (diagnostic trouble code) P0299-77 is stored in the powertrain control module (pcm).
PIP5495G - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
PIP5495E - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
PIP5468F - ENGINE (PWS)
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that have a check engine light on. Technician may find diagnostic trouble codes P0101, P0299, P0712, P11CC, P11DC, P2002, P2463, P2627, P2A00,
A011858 2050679_ - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
AUDI: This bulletin contains repair information for when the epc light is on and there is poor performance with dtc(s) P029900 and/or P023400.
PIP5468C - ENGINE AND ENGINE COOLING
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that have a check engine light on. Technician may find diagnostic trouble codes P0101, P0299, P0712, P11CC, P11DC, P20EE, P2002, P2463, P2627,
PIE0452A - ENGINE AND ENGINE COOLING:COOLING SYSTEM
CHEVROLET: This engineering informational bulletin is requesting information from the field on vehicles that have the condition of charge air cooler ice blockage with malfunction indicator lamp illuminated and dtc P0299 set after completing bulletin 1
PIE0452 - ENGINE (PWS)
CHEVROLET: This engineering informational bulletin is requesting information from the field on vehicles that have the condition of charge air cooler ice blockage with malfunction indicator lamp illuminated and dtc P0299 set after completing bulletin 1
17408 (Bulletin - POWER TRAIN
CADILLAC: 17408 - service update - potential turbo turbine wheel failure/mil illuminated with dtc P0299 or P16E7. Dealers are to reprogram ecm with a new calibration.
PIP5495D - EXTERIOR LIGHTING
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
A211522 2039006- - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: Supersedes technical service bulletin group 21 number 14-21 dated november 26, 2014. The mil is on. Customer may report a reduction in power. Dtc P029900 (turbo/super charger underboost) is stored in the engine control module (ecm), j623 (a
122-Z3L6M-05 - ENGINE AND ENGINE COOLING
PORSCHE: Concern: fault P0299 stored in the dme information: fault P0299 is stored when the actual boost level deviates from the specified boost level for greater than 3 seconds. Anything that can cause incorrect boost levels will set this fault, s
A211421 2039006- - ENGINE (PWS)
AUDI: Supersedes technical service bulletin group 21 number 14-20 dated november 17, 2014. Mil on. Customer may report a reduction in power. Dtc P029900 (turbo/super charger underboost) is stored in the engine control module (ecm), j623 (address
A211420 2039006- - ENGINE (PWS)
AUDI: Mil on. Customer may report a reduction in power. Dtc P029900 (turbo/super charger underboost) is stored in the engine control module (ecm), j623 (address word 01). The circlip connecting the turbo wastegate actuator rod and the wastegate f
A211316 2031245- - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: Supersedes technical service bulletin group 21 number 13-14 dated june 7, 2013. Mil on. Dtc P029900 (negative pressure deviation) is stored as a static fault in the engine control module (ecm), j623 (address word 01). Turbocharger waste gat
TT 20-09-06 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
VOLKSWAGEN: Tech tips (tdi engine - n75 solenoid valve diagnosis): this document informs with graphical aid the testing of the n75 solenoid valve in the event of a turbocharger fault code such as P0299 or P0234. This applies to mechanical injection st
A211313 2031245- - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: Supersedes technical service bulletin group 21 number 13-12 dated april 1, 2013. Mil on, dtc P0299 (negative pressure deviation) is stored. Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the waste g
A211312 2031245- - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: Supersedes technical service bulletin group 21 number 13-11 dated march 6, 2013. Mil on, dtc P0299 (negative pressure deviation) is stored. Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the waste g
A211311 2031245- - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: Supersedes technical service bulletin group 21 number 12-10 dated october 25, 2012. Mil on, dtc P0299 (negative pressure deviation) is stored. Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the wast
A211314 2031245- - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: Supersedes technical service bulletin group 21 number 13-13 dated april 4, 2013. Mil on, dtc P0299 (negative pressure deviation) is stored. Turbocharger waste gate flap has play. Under certain driving conditions, the linkage for the waste g
PIP5495C - EQUIPMENT:ELECTRICAL
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
PIP5468E - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that have a check engine light on. Technician may find diagnostic trouble codes P0101, P0299, P0712, P11CC, P11DC, P2002, P2463, P2627, P2A00,
PIP5468D - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that have a check engine light on. Technician may find diagnostic trouble codes P0101, P0299, P0712, P11CC, P11DC, P20EE, P2002, P2463, P2627,
A211210 2031245- - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: Mil on, dtc P0299 negative pressure deviation. Turbocharger waste gate flap has play. Under certain driving conditions the linkage for the waste gate actuation can encounter excessive wear which leads to play at the waste gate flap. This le
A211418 2031245- - ENGINE AND ENGINE COOLING
AUDI: Supersedes technical service bulletin group 21 number 13-16 dated july 9, 2013. The mil is on. Dtc P029900 (negative pressure deviation) is stored as a static fault in the engine control module (ecm), j623 (address word 01). Under certain d
A011516 2013060- - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
AUDI: Supersedes technical service bulletin group 01 number 08-05 dated december 22, 2008. The mil is on. Dtc P0299 (turbo/super charger underboost) is stored in the engine control module (ecm). The condition may be the result of an abnormal turb
122-B3K4R-05 - WHEELS
PORSCHE: Issue: fault P029900-turbo/super charger underboost stored in the dme. Information: a vacuum line at the vacuum reservoir in the left front wheel well was not connected properly during production and may become disconnected (see the pictu
PIP5495B - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
PIP5495A - EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that may have a malfunction indicator lamp on. The technician may find diagnostic trouble codes P0299 or P0234 set. The technician is provided
167-T1701-09 - ELECTRICAL SYSTEM
HINO: Sb-17-013 charge air cooler (cac) inspection P0299 P226C -- in the event that a subject vehicle exhibits low power with dtc (diagnostic trouble code) P0299 (underboost) and/or P226C (boost pressure slow response), inspect the cac (charge
PIP5468 - ENGINE (PWS)
CHEVROLET: This preliminary information communication provides information to the technician about vehicles that have a check engine light on. Technician may find diagnostic trouble codes P0101, P0299 and / or P11DC. Technician will need to follow pub
TSB 16-0123 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
LINCOLN: Some 2015-2016 mkc vehicles equipped with a 2.3l gtdi engine may exhibit an illuminated mil with a lack of power and diagnostic trouble code (dtc) P0299. This may be due to the turbocharger wastegate actuator rod coming disconnected from th
TSB 16-0122 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
FORD: Some 2016 explorer vehicles equipped with a 2.3l gtdi engine may exhibit an illuminated mil with a lack of power and diagnostic trouble code (dtc) P0299. This may be due to the turbocharger wastegate actuator rod coming disconnected from th
TSB 16-0121 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
FORD: Some 20152016 mustang vehicles equipped with a 2.3l gtdi engine and built on or before 1/1/2016 may exhibit a lack of power with diagnostic trouble code (dtc) P0299. This may be due to the turbocharger wastegate actuator rod coming disconn
VIN-4-A-PIN AUGU - FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
VOLKSWAGEN: Mil-on, fault P013E in the ecm customer states noise form the engine/turbo fuel gauge not reading full after topping up fuel fuel line rattle clutch pedal squeal/squeak when operating clutch pedal mil-on P0299 mil-on P0101
JTB00393NAS1 - ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
JAGUAR: "situation: on vehicles fitted with the 2.0l gtdi engine only, a loss of performance may be experienced and/or the malfunction indicator lamp (mil) may be illuminated and diagnostic trouble code (dtc) P0299-00 may be stored in the engine
15-NA-084 - ENGINE (PWS)
CHEVROLET: Diagnostic tips for engine running rough, poor acceleration, smell of exhaust inside cabin, possible P0101, P0299, P2002, P2263 or P2463 dtcs set some customers may comment on one or more of the following conditions: engine runs rough
15-01-006 - FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES
HYUNDAI: Hyundai veloster turbo: some 15 my veloster turbo vehicles, the intercooler may require replacement due to a restriction in the pressure port which could reduce engine power & check engine light could illuminate with dtc P0299. *lj
PI-1366 - ENGINE (PWS)
CHEVROLET: Buick/chevrolet: due to loss of wastegate preload, the malfunction indicator lamp is illuminated and diagnostic trouble code (dtc) P0299 (engine underboost) is set and wear in waste actuator rod end to pin joint is normal. Model 2013-2015
TSB-21-13-14 - ENGINE (PWS)
AUDI: Audi: on some vehicles the turbocharger waste gate flap is loose. Dtc P0299 is stored. *js updated 12/2/13. *pe
TT-21-10-01 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
VOLKSWAGEN: Volkswagen: diagnosis n75 solenoid valve on turbocharger, with fault codes P0299 and P0234, that leads to testing on which vacuum ports that would hold and which ones will not. No models were listed. Model years 2006-2013 with 2.0t gaso
PIP-5023 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET: Gm: mil due to dtc P0299- turbocharger underboost dtc- inspect for turbocharger waste pivot pin wear. This may be the result of a worn wastegate actuator pivot pin (3), allowing the wastegate to open when it should be closed. *js upda
PIP-4820 - ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
CHEVROLET: Chevrolet/pontiac/saturn/daewood/opel: low turbocharger boost pressure or possible dtc P0299. Technicians may find dtc P0299 present. May also find the turbo wastegate actuator rod nut missing. Most parts of the turbocharger are not ser
TB-01-07-70 - ENGINE AND ENGINE COOLING:ENGINE
VOLKSWAGEN: Volkswagen: mil on, dtc P0299 stored in ecm fault memory. Charge pressure control, negative deviation. The condition may be the result of an abnormal turbocharger recirculationg valve. *pe
PIP-4692 - ELECTRICAL SYSTEM:WIRING
CHEVROLET: Chevrolet/gmc: wire harness chafes near air cleaner and ductwork. May encounter a concern of reduced power mode or the ses light on with dtcs P0101, P0106, P0107, P0108, P0299, P0652 setting. *pe
TB-PIP-4520 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET: General motors: tech may encounter a vehicle with a low boost/power condition and/or dtc P0299 and or P0101 setting. This may be the result of a cracked or broken fitting at the turbocharger assembly. *pe
010770 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
VOLKSWAGEN: Mil on, dtc P0299 stored in ecm fault memory. *nj
06171 - ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
FORD: 6.0l turbocharger carbon deposit diagnostics and service tips - lack of power, white or black smoke, surge, P0238, P0299, P0404, P2262, and/or P2263. *kb
06232 - ENGINE AND ENGINE COOLING:ENGINE
FORD: 6.0l turbocharger carbon deposit diagnostics and service tips, lack of power, white or black smoke, surge, P0238, P0299, P0404, P0478, P0478, P2262, and/or P2263. *kb updated 11/05/07. *nj
18525 - ENGINE AND ENGINE COOLING
FORD: Buck/jerk, lacks power, black smoke, rolling idle, surge, mil on, and diagnostic trouble codes P2263, P0299, or P0401. *tt
18694 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
FORD: Lack of power and/or dtc P2263 or P0299 after turbocharger replacement - service tip. *tt
18427 - ENGINE AND ENGINE COOLING
FORD: Vehicle with a 6.0l engine may exhibit any one or more of the following buck jerk lacks power black smoke rolling idle surge mil on and diagnotics trouble codes P02263 or P0299. Also includes 2004-05 e-series 6.0l models. *eh
18397 - ENGINE AND ENGINE COOLING:ENGINE
FORD: Lack of power, surge, and/or diagnostic trouble codes P2263 or P0299. *tt
18069 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
FORD: Low power and/or diagnostic trouble code P0299 or P2263 - turbocharger diagnostic service tip. *tt
3100 - ENGINE AND ENGINE COOLING
CHEVROLET: Low power service engine soon/malfunction indicator light on diagnostic trouble code P0116 and P0299. *sc
3068 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
CHEVROLET: Oil seepage from turbo air charge cooler hoses or hose blowing off during acceleration. Possible diagnostic trouble code P0299. *tt updated 04-24-07. *kb

Consumer Complaints for this DTC

2019 BUICK ENCORE with 14300.0 miles

Turbocharger failure at 14300 miles, code P0299. Entering interstate, attempting to reach speeds of 60mph, power was significantly reduced making it difficult to achieve posted interstate speed while merging with faster traffic.
ENGINE, ENGINE

2019 RAM 2500 with 8450 miles

I just purchased a used 2019 Ram on day two check engine light comes on loss of power while driving at highway speed. Dealer is telling me it is codeP0299 they checked and cleared code. Now 12/18/ back with dealer for same code P0299 and loss of power or going 8nto limp mode.
ENGINE, ENGINE

2017 HONDA CIVIC

My car randomly lost power in the middle of the freeway forcing me to turn on hazards and make my way from the express lane to the nearest off ramp going 20 mph while trying to avoid an accident. My check engine light began to flash rapidly causing further anxiety. Fortunately i was able to make my way to safety and call a tow truck. I attempted to have my car delivered to the nearest Honda (walnut creek ca) however they did not have any availability for a few days. The car also had lots of smoke coming out the exhaust and read check engine oil level on and off. It was a nightmare and who knows what it's going to cost me to repair. On top of all the work i'll loose being my work relies on my car 100%. I've owned nothing but Hondas however this time i feel i made a bad purchase buying a new 2017 Civic. I've kept up with maintenance, only goes to dealership, pumped nothing but premium gasoline. I am sad, upset, angry, anxious and very much still in disbelief that this is happening to my 3 year old car at only 80,000 miles . What can i do? Is anyone else having same issue? I got a code P0299 turbo underboost
POWER TRAIN, ELECTRONIC STABILITY CONTROL ENGINE POWER TRAIN

2017 LAND ROVER DISCOVERY SPORT with 60000 miles

The vehicle would accelerate normally than out of the blue. It looses power, engine light illuminating advising not to continue driving. Code advising P0299 'turbo charger'common problem apparently mechanics advising online forums and repair ideas. Vehicle only has approximately 60,000 on it and all approved maintenance. Now they are denying major repair that is a common issue!!
ENGINE, ELECTRONIC STABILITY CONTROL ENGINE ENGINE

2017 RAM 1500 with 155000. miles

Tl* the contact owns a 2017 Ram 1500. While driving 70 mph, the check engine warning indicator illuminated and the vehicle failed to accelerate past 30 mph. Tri-lives motors (180 state hwy f, branson, mo 65616, (417) 334-7543) diagnosed the vehicle and found code numbers: P0299 (supercharger underboost) and P2459 (diesel particulate filter regeneration frequency). The codes were reset and the master air flow was replaced. The contact was informed to drive the vehicle. After driving 100 miles, the check engine warning indicator illuminated. The contact called the same dealer and was informed to drive the vehicle and take it to a nearby dealer if it lost power. The vehicle was taken back to the same dealer for diagnostic testing and the same codes appeared. The technician reset the code and informed the contact that there was no remedy. The vehicle was taken to corwin dodge of springfield (located at 1025 w sunshine st, springfield, mo 65807, (417) 862-9272) for a buyback. A master air sensor was replaced, but the vehicle was still not repaired and remained at the dealer. The contact stated that the failure recurred every month since the vehicle was purchased. The vehicle was taken to several unknown dealers in different states where the codes were reset; however, the failure continued. The manufacturer was made aware of the failure and provided case number: 58629945. The approximate failure mileage was 155,000.
ENGINE,

2017 FORD FOCUS with 40000.0 miles

I bought a brand new 2017 Ford Focus and have had it in the shop 6 times for an error code of P0299 turbo/super charger underbooster going off. The engine is losing power when it starts acting up and to protect the car it shuts down the underbooster. I have almost been rearended several times and my very pregnant daugher in law and i were almost t-boned due to the problem as we wete making a left turn out of my neighborhood onto a busy street. When taking it into the shop lou fusz chesterfield has told me several times they were not able to find an issue with the car or duplicate the problem. Because the check engine light would alarm and when you turn the car off the code resets itself. I have asked Ford to work with me to replace the vehicle and they just said they could do nothing because i had 18 months due to the lemon law in missouri.
UNKNOWN OR OTHER, POWER TRAIN

2016 BUICK ENCORE with 88000.0 miles

Our vehicle started losing pick up and go in the middle of driving about 2 weeks ago. Check engine light came on, so we took the vehicle to identify the issue. Error codes P0299 turbo/super charger underboost issue was identified. We called the dealership and were told the part is on backorder until maybe july. Even after market parts apparently are unavailable because gm is purchasing them. We contacted service manager at dealership because we are without a car that we are paying for and there is a huge concern that if the part is this difficult to obtain, there must be an undisclosed issue going on here. The service manager said they are only able to obtain updates for parts once the part is ordered, but also did confirm there is ( not necessarily a backorder, but the part is hard to come by!?!). He could not answer why. He did encourage us to contact consumer affairs to escalate our concerns. We did contact consumer affairs and were directed to contact nhtsa. We currently are without our vehicle that we continue to pay for and continue on this journey of tell this person or department and we are getting nowhere fast. Something bigger is obviously going on here and as always the paying customer continues to be the one paying for it. We want the part and it would be nice to not be inconvenienced with scrambling everyday on how to get to/from work and how to get to/ from caring for elderly parents who are in need of our assistance to eat, bath and remain safe. This issue is a huge inconvenience and truth needs to be told by gm/Buick.
ENGINE,

2016 FORD FOCUS with 40257 miles

This is the second time this car gets a P0299 failure. I was on the freeway, trying to speed up, when the engine revved up quickly, but did not change gear. Instead, the car started slowing down. After a few seconds, the car started speeding up at a sluggish rate. The car now has a wheezing noise when in operation as it accelerates.
FUEL/PROPULSION SYSTEM, POWER TRAIN ENGINE POWER TRAIN ENGINE FUEL/PROPULSION SYSTEM

2015 CHEVROLET CRUZE

11/14/17 ' pm check engine light (cel) 11/15/17 ' honda dealer referred to Chevrolet dealer due to 'proprietary code' 11/16/17 ' 60191 miles - Chevrolet dealer performed sublet repairs - intake manifold replacement 7/10/18 - 74,958 ' am started rough; service stabilitrack, traction control, & cel mechanic pulled code P0300; cylinder #3 misfire replaced sparks plugs - cleaned fuel injectors picked up car in pm; rough start - no indicator lights 7/11 - 75,029 ' pm cel while climbing hill mechanic pulled code P0299; engine under boost & 'multiple misfires' mechanic suspected water in fuel, added lucas oil fuel treatment 7/12 ' am started rough; stabilitrack, traction control, & flash cel 7/16 - 75,086 - dealer pulled codes P0300, U0121, U0100 recommended spark plug replacement but replaced coil pack 7/17 ' am - cel while climbing hill dealer pulled code P0299; engine under boost replaced turbo charger, gasket, seals, oil feed line, corrected coolant level, cleared codes - performed road test 7/18 ' pm pick-up - started rough; service stabilitrack, traction control, & cel 7/19 ' dealer replaced spark plugs with oem recommended brand/type - kept car overnight for possible 'cold start' issue 7/20 ' car ready for pick up 7/24 ' am cel while climbing hill 7/25 ' am cel on start ' went to dealer dealer found cel not on when logging mileage dealer kept car overnight to reproduce problem 7/26 ' pm picked up car 8/16 - started rough in am; stabilitrack, traction control, & flashing cel called dealer; asked to bring car in for codes to be pulled dealer pulled code P0300; history of 186 misfires, and 'ecm communication temporarily lost' 8/30 ' 77094 ' picked up car; failed to reproduce issue 9/11 ' 77736 ' honda dealer advised of oil leak during oil change 9/14 ' 77960 ' Chevrolet dealer replaced leaking 'oil return line coming from bottom of turbo'
ELECTRONIC STABILITY CONTROL, ENGINE

2015 RAM 1500 with 36000.0 miles

P0299 under boost codes. After being thrown into limp mode and almost getting me and my family killed i got my dodge ecodiesel to the dealership. Said its a software issue and there is no fix. Was told to that its fine after they just cleared the engine light. Great customer service!! Just send them back out in the death trap.
ENGINE, FUEL/PROPULSION SYSTEM VEHICLE SPEED CONTROL

2015 RAM 1500 with 24350.0 miles

When in motion, check engine light illuminates with "check electronic throttle control" message. Vehicle enters "limp" mode and won't accelerate properly becoming a hazard to other traffic. The obd code received is P0299 - turbo underboost. This is a recurring issue.
ENGINE,

2014 CHEVROLET CRUZE with 52899.0 miles

Cat was sputtering and stalling after i had the oil changed and air filters checked. I got it diagnosed and the codes given were P1101 P0299 P0171 P0106 i was coming to a stop at the light when i noticed some squealing or whirring under the hood. I opened the hood and the engine is like ... Moving
ENGINE, UNKNOWN OR OTHER FUEL/PROPULSION SYSTEM

2014 CHEVROLET CRUZE with 54000.0 miles

My 2014 Cruze has a turbo in it to make it "eco" - i.E., rely on turbo for boost when more power is needed rather than using more gas. My Cruze entered "limp mode" in july with 54,000 miles on it. The turbo failed to work while merging onto the freeway and check engine light came on. It was shifting into 4th gear with high rpm to keep freeway speed. When diag box was later plugged in, the code came back as "P0299" - turbo underboost. I attempted to replace the sensor (code came back) and solenoid (code back again) as they came up often in research when looking for a solution. Turbo worked fine for a month and then quit again with the same code and my car in limp mode again. I filed a complaint through gm and they managed to get the part that was backordered indefinitely due to factory workers being on strike. Apparently, gm cut their healthcare overnight. I'd strike too. The service printout i received after replacement stated that they could find nothing wrong with the turbo: "inspected for oil intrusion, none found wastegate solenoid connector missing retainer - does not affect function. Bypass valve opens and closes when commanded. No air induction restriction found. Recommend turbo for failed boost cotrol test" this sounds to me like a faulty part, and an expensive one at $1,501.86, that i paid for but did not break. Not to mention the sensor and solenoid replaced prior. My car is "fixed", and runs, but this is still an issue with the vehicle in general, and the turbo should be recalled to prevent future danger for others. I also think it's bs that i've had to pay a month's rent for a part that shouldn't have failed at only 54,000 miles. I will not be keeping this car and paying another month's rent in a year. I will also not be doing business with any gm manufacturer.
ENGINE,

2014 VOLKSWAGEN PASSAT with 62583.0 miles

2014 vw Passat tdi se 2.0l manual my vehicle has 62,583 mi. On it. I was driving on the highway when the diesel "glow plug" light began flashing on the dashboard and i lost all engine power. I was fortunate to be able to reach the roadside safely and i was able to bring the car to a halt on the roadside. Trying to start the vehicle however was not possible, the "glow plug" light continued to flash and the vehicle would not start. Vw roadside assistance was called and the vehicle was towed to the nearest vw dealership where i have was given the error code information below and told my turbo and engine need to be replaced but that they are outside of my 5yr/60,000 mi warranty. P0671-cylinder #1 glow plug circuit active/static P0674- cylinder #4 glow plug circuit active/static P2196- o2 sensor signal stuck rich bank 1 sensor 1 active/static P0299- turbo/super charger under boost active/static P13E0-sensor for internal pressire of cylinder #1 malfunction active/static P13D7-sensor for internal pressure of cylinder #4 electrical error active/static P13E1-sensor for internal pressure of cylinder #2 malfunction active/static P13E2- sensor for internal pressure of cylinder #3 malfunction active/static P1007- torque difference cylinder #4 limit value exceeded active/static
POWER TRAIN,

2014 CHEVROLET CRUZE

No warning turbo failure that cases vehicle to lose power suddenly i was on freeway when engine light came on and a engine power reduced warning came on went to auto zone and they said it was a P0299 have seen a lot of info on the internet net saying that the turbo has gone out this is bad when your at freeway speeds
VEHICLE SPEED CONTROL, ENGINE POWER TRAIN FUEL/PROPULSION SYSTEM ENGINE

2014 FIAT 500L with 41100.0 miles

Vehicle was in motion on a city street and check engine light came on. Ran obdii code later same day and received code P0299 "low turbo boost". Took car to Fiat dealership; they kept for 4 days advising inter cooler and sensor were replaced due to poor machining at the factory. Had car back for 2 days; while driving on the highway, check engine light came on again. Stopped at a rest area a few miles later and ran obdii code and received same P0299 code. Took car back to Fiat dealership next day and it is still with them as of now
ENGINE,

2014 VOLKSWAGEN JETTA with 17501.0 miles

I purchased my car in mid-feb 2014 and it performed flawlessly the winter of 2014. I started my car on monday jan 5 (oat +5f) let it idle for a minute and drove 35 mi to work on the highway (rpm >2500), i don't have a temp gauge, but my car did not seem to warm up like normal. (usually its warm after about 3 mi, and hot after 10-15). After work (+8hrs later) i started my car (oat +15f), letting it idle for a minute then drove out of the parking garage (~100') and my car lost power, and had a flashing glow plug light, i believe this was limp mode. I pulled into a parking lot, let my car idle for a few minutes and there was no change. I shut the car off, waited a minute or two, and restarted the engine, appeared to run fine and i continued my drive home. I pulled my vagcom codes and saw that P0299, low boost pressure, i attempted to get my car into the dealer, but they were too busy. I did not drive my car tuesday, but drove it to and from work wednesday without a problem. On thursday morning i started my car (-5f), it idled for less than a minute and then died. It continued to turn over, but would not start. I pulled the codes again (did not clear them from earlier in the week) and saw that i had a new fault P0087, low fuel pressure. I had my car towed to the dealer (vw roadside is slow, but free) and did not hear anything from the dealer until friday afternoon. I was told that ice was discovered in my intercooler and that it had been replaced and the cold weather kit was installed.
FUEL/PROPULSION SYSTEM, ENGINE

2014 CHEVROLET CRUZE with 94000.0 miles

Getting code P0299 turbocharger underbost. The turbo charger was found to have a crack in the housing. When the car had 45,000 miles it the oild feed line exploded and had to get replaced, this was about 2 years ago when the oil feed hose had to get replace. Now the Cruze has a code of P0299 and the car is under powered.
POWER TRAIN, POWER TRAIN

2013 HYUNDAI SANTA FE with 131000 miles

Tl* the contact owns a 2013 Hyundai Santa Fe. The contact stated they would hear a knocking coming from the engine of the vehicle and the check 20v1442th smoke beng seen due to a fuel injector failure. The contact stated that excessive smoke would come out from the exhaust of the vehicle. The contact took the vehicle to a certified mechanic who diagnosed that the alternator and fuel injector failed and needed to be replaced. The vehicle was repaired. The failures continued. The contact took the vehicle to the dealership (huntington beach Hyundai address: 16751 beach blvd, huntington beach, ca 92647 phone: (714) 594-5604) who diagnosed the vehicle with the diagnostic code failure: P0299, which, states that the vehicle's under boost turbocharger had failed and needed to be repaired. The vehicle had not ben repaired. The manufacturer was made aware of the issue and opened a case regarding the matter. The approximate failure mileage was 131,000.
ENGINE, FUEL/PROPULSION SYSTEM POWER TRAIN

2013 FORD F-150 with 58000.0 miles

With 58,000 miles on 3.5 ecoboost -check engine light went on with error codes P0016 and P0299. Ford dealer advised timing chain stretched and needed to be replaced at cost of $2500. Less then 10 miles after picking truck up from repairs - check engine light on with P0299 code again. Back into shop.
POWER TRAIN,

2013 FIAT 500 with 118000. miles

Takara recall: my 2013 Fiat abarth has been giving problems with the turbo and side moldings. At the time of purchase, the moldings were not attached completely and the dealer promised to repair under the warranty; however, the moldings continue to peel off even after the vehicle was serviced. Secondly, my vehicle continues to throw a P0299 code while i'm driving even after i spent thousands of dollars trying to repair it; consequently, my vehicle is now not passing the vehicle inspection.
STRUCTURE:BODY, UNKNOWN OR OTHER

2013 FORD ESCAPE

I purchased the car on june 09/2021 after taking the car home i noticed a severe lack of power at times when acceleration is crucial in order to navigate safely, such as when approaching an expressway ramp after having been at the light that controls access at the nearby intersection. Traffic moves quickly after lights change, and when i went to blend in from the merge lane, the car was inresponsive, the accelerator hit a dead spot that sent the engine spinning into very high rpms suddenly..5000 rpms the car became an obstacle and other drivers had to swerve to avoid an accident. All in the car were startled and i was upset because of the near collision. The usual sluggish engine response suddenly became dangerous. This car has 2 codes in the computer unit which are identified by these codes..P0299-00 and P26AC-00 they only show if vehicle is hooked to a scanner and no check engine light has been activated. My mechanic found them. The dealer refuses to admit theres any problem and Ford motor has no recall for this issue. This car is available for inspection upon request.
FUEL/PROPULSION SYSTEM,

2013 FORD EDGE with 91000.0 miles

Check engine light came on. Took it to vehicle service station and code P0299 came up. That is the code to replace turbocharger assembly. The vehicle is only 6 years old and under 100k miles. This issue should not be coming up on a vehicle that is not that old
FUEL/PROPULSION SYSTEM, ENGINE POWER TRAIN

2013 FORD F-150 with 69000.0 miles

3.5 l ecobost losses power while driving on highway and poor acceleration from stop light or when accelerator pedal is depressed when passing. Several close calls from vehicles going faster approaching from rear at stop lights and while passing. Had close encounter with two tractor trailers on hwy while traveling at 60-65mph going up a hill. Went to pass the trailer truck that was slowing down. After entering the passing lane and pressing the acceleration pedal the truck had a quick shake then with the acceleration pedal pressed to the floor the truck slowed to 45 mph and would not accelerate. I was almost rear ended buy another large truck attempting to pass the slower one. Sometimes has ticking noise at start up that seems to go away after running for 5-30seconds. Has P0016 code and P0299 codes.
ENGINE,

2013 DODGE DART

Gauges will freeze while driving, but reset after 20 minutes. Has happened on 4 separate occurences. While driving down an expressway at 50mph in the city, the car lost boost(pressure from the turbo) causing it to lose power dramatically reducing safety and fuel economy. The car lost the ability to mert speed limit and slowing down traffic behind and the ability to get up a hill in my area. Research has shown countless other people being affected by the P0299 low pressure code.
ELECTRICAL SYSTEM, ENGINE

2013 CHEVROLET CRUZE with 81000.0 miles

Engine light came on , auto zone ran it and code P0299. States it the turbo/ super charger underboost. 81,000 miles. I have only had this vehicle 18 months. I don't race around town in it.
POWER TRAIN, ENGINE

2013 DODGE DART with 36201.0 miles

I was driving on freeway and check engine light came on. Next day took it to local shop and read code P0299 turbocharger under boost. Was told turbo needed to be replaced. Called Dodge and got an estimate of about $1500 to replace the turbo. Would not cover under warranty.
ENGINE,

2013 CHEVROLET CRUZE with 71400.0 miles

My 2013 chevy Cruze lt has an issue with the turbocharger. It appears to be a very common issue among chevy Cruzes. The code i believe it gives is P0299. While the acceleration and power always seemed off since prior to the incident, the first time the check engine light came on was at about 71,400. I was driving on a highway at the time. However, there have been occasions when i'm going uphill and despite the sufficient horsepower, it won't accelerate as it should. As a result, the turbocharger issue has caused the car to go much slower than the surrounding cars while going uphill, which clearly seems to endanger the driver and passengers as well as surrounding cars.
ENGINE, FUEL/PROPULSION SYSTEM

2013 FORD F-150 with 85000.0 miles

Had to buy a new engine! The truck started running rough on the drive home from work on friday, april 6. On saturday morning, april 7, i took it to get gas. After filling my tank, the truck would not start back up. I had to have it towed from the gas station. Towed it to keller Ford, grand rapids, mi. Codes P0011, P0016, P0017, P0019, P0021, P0172, P0175, P0299, P0313, P0365, P0369, P0390, P0394, P0430 and P052C. The technician also performed a power balance test and a compression test, it was determined half the engine had zero compression and the other half had lowered compression. All of these results indicated the truck needed a full engine replacement. $7,650 for the new engine. A vehicle with 80,000 miles and only 5 years old should not need a new engine. A mechanic told us this is a problem and he replaces an engine on these Ford trucks at least a few times a month. We had the engine replaced at sulforce automotive, grandville, mi
ENGINE,

2012 CHEVROLET SONIC with 62000.0 miles

12/23/16, i purchased a 2012 Chevrolet Sonic. 4/6/17, i was at a traffic light when smoke come in the vents from the hood of the car. I called onstar & to run a diagnostic. The diagnostic didn't return any information & i contacted the dealer & took the vehicle for service on 4/9/17. I was told the thermostat housing was leaking and caused the smoking. The coolant system was flushed & filled & a gm oil, lube, filter change was done. The vehicle was ready for pick on 4/19/17. A few weeks later the car was smoking again. I called the dealer, i was told it was probably just fluid on the engine. The car continued to smoke periodically. 6/7/17, there was a large pool of oil under the car, i took the car to a local shop. They said that the oil had been overfilled & that it blew a seal. I called the dealer, i was told they did not overfill the oil & made another service appointment. I was told again there was a problem with the coolant system & the oil & that was the reason for the smoking. Repairs completed 7/10/17. 9/27/17, while driving the check engine light came on, so i called onstar for a diagnostic & they gave me an error code P0299. They told me that it was an airflow problem. I called the dealer & asked for the service manager & gave her the error code. She said there was a problem with the turbo & that i needed to bring the vehicle in. I took the car to them 10/3/17. 10/4/17, the service department called me & told me that the turbo on the car was bad. The repairs were completed on 10/12/17. 10/13/17 the car overheated. The vehicle was leaking coolant in two places. I took it to a different dealer & they said the t-joint in the coolant system was leaking. The repairs were completed on 10/18/17. 11/3/17 an email from on-star said there was an engine problem. I contacted on-star for a diagnostic & they said something is wrong with the coolant system.
FUEL/PROPULSION SYSTEM,

2012 AUDI Q5 with 68000.0 miles

Vehicle was in motion on a highway and experienced problems with the turbo underboosting. Error code was P0299 negative pressure deviation, turbocharged excessive wastegate play occurred on Audi with 68k. Requires a new turbo charger to fix.
ENGINE,

2012 BUICK REGAL with 86047.0 miles

Codes P0016 P0017 dtc P0299 under turbo boost P0010 - fluid leak from transmission - stabilitrak light on and off (2017, 2018, 2019)- { i paid to have the issue fixed and less than a year later it happens again} car will not pick up speed - crank / cam position not plausible - timing chain stretched /stuck.( popping sound coming from under my seat in 2017)these are all issues that happen while driving. I am getting on the on ramp for the highway and my car will not go pass 35 mph for over 15 seconds, even if i floor it. There is on coming traffic doing 60 to 70 mph and that is a life or death situation. I have no way of moving to avoid being hit. My car will stall when i try to drive after stopping at a stop light.
VEHICLE SPEED CONTROL,

2012 AUDI Q5 with 93000.0 miles

I have code po299 turbocharger/supercharger a underboost condition. I was under warranty in 2016 to have my pistons and rings replaced because the oil consumpion was very high, now i'm burning more oil and i changed the diverter valve i'm still coming up with P0299 code and need to replace my turbo after 60k miles from the piston and rings replacement...I think this all has to be part of the same problem and Audi should repair it for free.
FUEL/PROPULSION SYSTEM, ENGINE ELECTRONIC STABILITY CONTROL FUEL/PROPULSION SYSTEM

2012 FORD F-350

When she purchase the vehicle dec 2016 it had the check in light on with the figure of a engine on , its being reading turbo ndercharge boost error code P0299 cocequence reduce power, several links on the manifold and i can smell the fumes inside the cabin while driving the strong fuel from the diesel
FUEL/PROPULSION SYSTEM,

2012 FORD EDGE with 117000. miles

My check engine light is on, shows code P0299 which refers to an underboost condition with the turbo or supercharger system. My mechanic spoke to a dealership who stated they've put 3 parts in the vehicle they have in the shop and its still not fixed. Sounds like its a common issue. Can you investigate for a recall?
ENGINE, ENGINE POWER TRAIN

2011 FORD F-150

Takata recall there is a cold start noise kinda sounds like a grinding noise also have a huge power loss when ever trying to accelerate. I get codes P0016 P0017 P0299 . I have changed all came and crank sensors.
ENGINE,

2009 VOLKSWAGEN JETTA with 7144.0 miles

We were traveling in branson, mo. From our home in east texas when there was what sounded like a single muffled pop from the engine compartment. The glow plug lamp started blinking and the check engine light came on and i think it was blinking also. At the time i was traveling about 30 mph. And i had just started up a steep grade. Also, about the time the glow plug light started blinking, the mfd displayed the "major engine malfunction" message. The engine lost power but did not stop and i was able to go about 300 yards to a safe place where i could pull off the street out of traffic and park. The vehicle was towed to the Volkswagen dealer in springfield, mo. (springfield Volkswagen) fault code thrown was P0299. It was determined that a coupling on a line going into the turbocharger had not been adequately tightened during assembly of the engine and the hose had come loose disabling the turbocharger and the engine.
ENGINE AND ENGINE COOLING:ENGINE,

2006 FORD F-250

Check engine light that Ford dealership couldn't fix, couldn't find the problem even after full inspection. Codes appeared: P0299, P0401, P0404, P1335.
SEAT BELTS,

2006 VOLKSWAGEN PASSAT with 67000.0 miles

Check engine (mil) light turned on, car all of a sudden idles at a higher rpm while we were driving!!! Vehicle was taken into the dealership. Car is only under warranty for 36,000 miles or 3 years! Dealership ran diagnostic, came up with: code P0123 (throttle high input), P0299 (turbo under boost), P0456 (evap leak), P1098 (intake turning valve short to b+), code P2004 (intake runner stuck), code P3237 (intake runner basic settings). Dealer recommended intake runner motor replacement & replacement of turbo & n80 valve, also cv boot needs replacement. Total cost of repairs over $1200!!! We always take care of our vehicles and have them serviced at the dealership. Vehicle has also had defective interior parts. Interior trim (all switches - lock, window & radio are bubbling and chipping). Door panel trim (rubber is peeling). Shift knob - metallic piece on shift knob, peeled and dug into skin and caused injury. Carbon fiber dash is peeling apart. Contacted vw of america, per their customer service rep, they are unable to make any repairs due to the age and mileage of the vehicle. Car is a 2006 - 67,000 miles. Less than 5 years old. I would have never purchased a Volkswagen had i known they were not reliable vehicles. Unknowledgable sales reps, or just after customers to make a buck. Selling people unreliable vehicles and Volkswagen clearly does not take care of their customers nor do they care about customer loyalty or safety.
POWER TRAIN:AUTOMATIC TRANSMISSION, ELECTRICAL SYSTEM LATCHES/LOCKS/LINKAGES FUEL SYSTEM, GASOLINE VEHICLE SPEED CONTROL EQUIPMENT ENGINE ELECTRICAL SYSTEM

2004 FORD F-350 with 15000.0 miles

All of the following is documented on Fords computer system through magnussens in newark, ca. June04, started with a rough idle problem took my 2004 f350 back to dealer. Did a reflash seem to fix for a while. Progressed to rough and searching idle. Approximately 9 times back to dealer, each time either clear check engine light or replace parts, approximately 7 or 8 days out of service from june till late august, last time replaced the entire turbo assembly. Each time just replaced parts, never did the dealership or Ford corporate have a definite answer to what caused the problem. Each time code P0299 was on the check engine. Between the 2 and 9th incidents, the vehicle stalled unexpectedly in the middle of a downhill coasting turn almost resulting in a crash each time. Total of 5 times, last occurrence of stall was first time vehicle presented any problems since turbo replacement on two thursdays ago on my way to work. After i got in to work i called Ford support and my dealership and started a replacement process through what Ford calls the dsb dispute settlement board. I am not comfortable driving this particular unit any more and fear i might not be able to stop the vehicle safely one of these times it stalls and may cause injury to myself or another. I have done a lot of research regarding others who might have had this problem and it led me here.
ENGINE AND ENGINE COOLING:ENGINE:DIESEL,

2004 FORD F SUPER DUTY with 12100.0 miles

Engine 6.0l, check engine light on, code P0299, 'underboost", car owned since new, odometer now has 12,100 mlesi Ford dealership reporting that engine turbo-compressor may need replacement
ENGINE,

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