Service Bulletin

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Service bulletin - the piston rings on certain cylinders may rotate and align which can lead to spark plug fouling. This can set dtcs P0301 through P0304 and cause the mil to come on.


- 2012 - 2011 - 2010 - 2009 - 2008 -

Models from 2012
2012 HONDA ACCORD
Models from 2011
2011 HONDA ACCORD
Models from 2010
2010 HONDA ACCORD
Models from 2009
2009 HONDA ACCORD
Models from 2008
2008 HONDA ACCORD
Service Bulletin
Applies To:
2008-12 Accord V6 A/T – Check the iN VIN status for eligibility
13-078
February 26, 2014
Warranty Extension: MIL Comes On With DTCs P0301 Through P0304
(Supersedes 13-078, dated October 9, 2013, to revise the information marked by the black bars)
REVISION SUMMARY
Under PISTON CLEANING PROCEDURE, information
was updated.
PARTS INFORMATION
NOTE: Do the DIAGNOSIS first to determine which
cylinders you will need to repair.
Required Parts
BACKGROUND
American Honda is announcing a powertrain warranty
extension as a result of a settlement of a class
captioned, Soto et al.v..American Honda Motor Co.,
Inc., Case No. 3:12-cv-1377-SI (N.D. Cal.).
Part Name
Part Number
Cyl 1-3
Cyl 1-4
Cyl. Gasket (Fr)
12251-R70-A01
Cyl. Gasket (Rr)
12261-R70-A01
1
1
94109-14000
1
1
EGR Pipe Gasket A
18716-R70-A01
1
1
EGR Pipe Gasket B
18719-R70-A01
1
1
Ex. Chamber Gasket
18115-R70-A01
1
2
American Honda is extending the powertrain warranty
to cover repairs related to engine misfire (that triggers
DTCs P0301 through P0304) to 8 years with unlimited
mileage from the original date of purchase and has
settled a class action based on this remedial measure.
Ex. Pipe Gasket
18212-SA7-003
2
2
This warranty extension does not apply to any vehicle
that has ever been declared a total loss or sold for
salvage by a financial institution or insurer, or has a
branded or similar title under any state’s law.
The piston rings on certain cylinders may rotate and
align which can lead to spark plug fouling. This can set
DTCs P0301 through P0304 and cause the MIL to
come on.
CUSTOMER NOTIFICATION
Owners of affected vehicles will be sent a class action
settlement notice regarding this warranty extension
starting in October 2013.
Before doing work on a vehicle, verify its eligibility by
doing an iN VIN status inquiry.
Refer customers seeking information about settlement
benefits to www.enginemisfiresettlement.com, or
instruct them to call 888-888-3082.
CORRECTIVE ACTION
Inspect the vehicle and, if necessary, clean the pistons,
and replace the piston rings in the affected cylinders.
Drain Washer
14 mm
1
Head Gasket Set
12030-R70-A00
Head Gasket Rr.
12050-R70-A00
1
1
1
In. Manifold Gasket
17146-R70-A01
1
1
In. Manifold Gasket
17105-RCJ-A01
1
1
Oil Filter
15400-PLM-A02
1
1
O-ring
(7.47 mm x 3.6 mm)
91301-PLC-000
2
2
O-ring
(31.2 mm x 4.1 mm)
91314-PH7-003
2
2
Piston Ring Set
13011-5G0-A02
3
4
Pre-chamber
Gasket
18393-SDB-A00
1
1
Self-locking Nut
(8 mm)
90212-RCA-A01
4
8
Self-locking Nut
(10 mm)
90212–SA5-003
9
9
*Spark Plug (KA)
12290-R70-A01
4
4
*Spark plug (KL)
12290-R71-L01
4
4
Strainer O-ring
15221-RYE-A01
1
1
Timing Belt Bolt
14551-RCA-A01
1
1
Water Gasket Fr.
19411-P8A-A03
1
1
Water Gasket Rr.
19412–P8A-A02
1
1
* Depending on your vehicle’s emission level for
model years 2008–09, you will need either KA or
KL spark plugs.
 2014 American Honda Motor Co., Inc. – All Rights Reserved
ATB 50006-51066 REV2 (1402)
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CUSTOMER INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment,
and training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Honda automobile dealer.
Replace Parts as Needed
Connecting Rod Bolt:
P/N 13204-P8A-A01
Head Cover Washer:
P/N 90442-P8A-A00
Washer-Bolt (12 x 163):
P/N 90005-PAA-A01
WARRANTY CLAIM INFORMATION
2008–10 Accord
NOTE: The procedure in this bulletin is different than
the service manual. This procedure does not require
the complete removal of the power steering pump,
catalytic converter(s), engine and transmission, or the
crankshaft. As a result, the operation number is unique
and the FRT is reduced.
OP#
REQUIRED MATERIALS
Honda Long-Life Antifreeze/Coolant Type 2 (3 gallons)
P/N OL999-9011
Honda Genuine Motor Oil 0W–20 (all models):
P/N 08798–9036 (6 quarts)
or
Honda Genuine Motor Oil 5W–20 (2008-10)
(if requested)
P/N 08798-9032 (6 quarts)
Description
FRT
1171G9
Procedure A
Update the PCM and replace spark
plugs 1–4 (includes diagnosis).
0.5 hr
1171H0
Procedure B
Replace piston rings 1–3 and replace
spark plugs 1–4 (includes diagnosis).
6.2 hrs
B Add if replacing piston rings on
cylinder 4.
0.8 hr
Failed Part:
P/N 13011-R70-A02
Hondabond HT (2 tubes)
P/N 08718-0004
Defect Code:
5V500
Symptom Code:
JB600
Honda Genuine Throttle Plate Cleaner:
P/N 08700-9204
Skill Level:
Repair Technician
Nylon Parts Cleaning Brush (commercially available)
2011-12 Accord
NOTE: The procedure in this bulletin is different than
the service manual. This procedure does not require
the complete removal of the power steering pump,
catalytic converter(s), engine and transmission, or the
crankshaft. As a result, the operation number is unique
and the FRT is reduced.
5/16 ID Flexible Hose (commercially available)
TOOL INFORMATION
Piston Ring Groove Cleaner
T/N 07AAZ-TA5A100
Gasket Remover/Pan Separator:
T/N LIL50190
OP#
Description
1171G9
Procedure A
Update the PCM and replace spark
plugs 1–4 (includes diagnosis).
0.5 hr
1171H0
Procedure B
Replace piston rings
1–3 and replace spark plugs 1–4
(includes diagnosis).
6.2 hrs
B Add if replacing piston rings on
cylinder 4.
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FRT
Failed Part:
P/N 13011-5G0-A01
Defect Code:
5V500
Symptom Code:
JB600
Skill Level:
Repair Technician
0.8 hr
13-078
DIAGNOSIS
1. Connect the HDS to the vehicle and check for the
following DTCs: P0301, P0302, P0303, P0304.
• If any of these DTCs are stored, go to step 2.
• If none of these DTCs are stored, this bulletin
does not apply. Continue with normal
troubleshooting.
2. Check the PCM software and note if it is earlier
than shown below, then go to step 3 (all 2012
vehicles are up to date).
Program ID
(or later)
Program P/N
(or later)
2008–09 Accord
(KA-ULEV)
70A630
37805-R70-A63
2008–09 Accord
(KL-SULEV-PZEV)
71L630
37805–R71-L63
2010 Accord
(KA-ULEV)
70A750
37805-R70-A75
2011 Accord 2-Door
(KA-ULEV)
70A830
37805-R70-A83
2011 Accord 4-Door
(KA-ULEV)
84A530
37805-R84-A53
Year/Model
3. Remove and check spark plug(s) on the affected
cylinders (example: if P0301 is stored, check the
spark plug on cylinder No. 1).
• If the spark plug(s) are not fouled, this bulletin
does not apply. Continue with normal
troubleshooting.
• If this vehicle has any of the above DTCs, the
spark plug(s) are fouled, and the software is an
earlier version, go to REPAIR PROCEDURE A.
• If this vehicle has any of the above DTCs, the
spark plug(s) are fouled, and the software is a
current or later version, go to step 4.
NOTE: Below are examples of good and fouled
spark plugs.
GOOD
NO GOOD
4. Note which DTCs are stored in the vehicle.
• If the vehicle has one or more of the following
stored DTCs: P0301, P0302, P0303, go to
REPAIR PROCEDURE B to clean the pistons,
replace the piston rings on cylinders 1–3, and
replace the spark plugs on cylinders 1–4.
• If the vehicle has DTC P0304 with or without any
of the other three DTCs stored, go to REPAIR
PROCEDURE B to clean the pistons, replace the
piston rings on cylinders 1–4, and replace the
spark plugs on cylinders 1–4.
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REPAIR PROCEDURE A
1. Update the PCM software. Refer to Service Bulletin
01-023, Updating Control Units/Modules.
2. Replace spark plugs on cylinders 1–4, then return
the vehicle to the customer.
REPAIR PROCEDURE B
The following service manual procedures have been
used in full or in part within this service bulletin. For
more detail on these procedures, and torque
specifications for some components, refer to the
appropriate electronic service manual.
• Battery Terminal Disconnection and Reconnection
• Fuel Pressure Relieving
• Fuel Line/Quick-Connect Fitting Removal
• Air Cleaner Removal/Installation
• Splash Shield Replacement
• Drive Belt Removal/Installation
• Engine Oil Replacement
• Coolant Replacement
• Hydraulic Power Steering Fluid Check/Replacement
• Intake Manifold Removal and Installation
• Timing Belt Removal and Installation
• Warm Up-TWC Removal/Installation
• Cylinder Head Cover Removal
• Cylinder Head Removal and Installation
• Piston Ring Replacement
• PCM Idle Learn Procedure
Engine Repair
• Use fender covers to avoid damaging painted
surfaces.
• To avoid damaging any wires and terminals, unplug
the circuit connectors carefully while holding the
connector portion.
• Mark all the circuits and hoses to avoid
misconnection. Make sure they do not contact other
circuit wiring, hoses, or interfere with other parts.
1. Using both hood support struts prop up the hood in
a wide open position.
HOOD SUPPORT STRUT
2. Relieve the fuel pressure.
3. Remove both front wheels so you can fully lower
the vehicle.
4. Remove the strut brace.
NUTS
8 x 1.25 mm
22 N.m (16 lb-ft)
STRUT
BRACE
NUTS
8 x 1.25 mm
22 N.m (16 lb-ft)
BRAKE BOOSTER
VACUUM HOSE
5. Do the battery removal procedure.
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13-078
6. Disconnect the fuel feed hose line at the bulkhead.
10. Remove the front splash shield.
QUICK-CONNECT
FITTING COVER
FRONT SPLASH SHIELD
11. Drain the engine oil.
12. Loosen the drain plug on the radiator, and drain the
coolant.
COVER
NUTS (2)
9.8 N.m
(7.2 lb-ft)
DRAIN
PLUG
7. Remove the engine cover.
ENGINE COVER
13. Install a 5/16th inner diameter rubber hose on the
drain bolt located at the rear of the engine block,
loosen the drain bolt, and drain all remaining
coolant. Then disconnect the oil pressure switch
connector.
OIL PRESSURE
SWITCH
8. Remove the radiator cap.
9. Raise the vehicle.
RUBBER
HOSE
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DRAIN BOLT
10 N.m (7.4 lb-ft)
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14. Remove exhaust pipe A.
19. Disconnect the MAP sensor connector and the
breather pipe, then remove the intake air duct.
GASKETS
Replace.
INTAKE
AIR DUCT
GASKETS
Replace.
EXHAUST
PIPE A
BREATHER
PIPE
SELF-LOCKING NUTS
SELF-LOCKING NUTS
54 N.m (40 lb-ft)
Replace.
MAP SENSOR
CONNECTOR
33 N.m (25 lb-ft)
Replace.
15. Depending on the diagnosis, remove the
appropriate WU-TWC support bracket bolts.
16. Remove the EGR lower pipe nuts.
17. Remove the crankshaft pulley bolt but not the
pulley.
NOTE: Make sure to apply new oil to the bolt flange
and threads before reinstallation.
20. Disconnect the throttle body connector, the EVAP
canister purge valve connector, the EVAP hose,
the brake booster vacuum hose, and the vacuum
hose.
21. Disconnect and plug the water bypass hoses.
EVAP CANISTER
PURGE VALVE
CONNECTOR
BRAKE BOOSTER
VACUUM HOSE
: Remove any oil
: Clean
: Lubricate with new engine oil
CRANKSHAFT
PULLEY
PULLEY
PULLEY
WASHER
WATER
BYPASS
HOSES
EVAP HOSE
THROTTLE BODY
CONNECTOR
BOLT
22. Remove the drive belt.
18. Lower the vehicle.
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23. Remove the drive belt auto-tensioner.
13-078
24. Remove the power steering pump bolts, the power
steering bracket then secure the power steering
pump out of the way.
NOTE: Do not remove any of the hoses.
9.8 N.m
(7.2 lb-ft)
POWER STEERING
HOSE BRACKET
31. Remove the intake manifold bolts and nuts in three
steps, then remove the intake manifold.
SPECIFIED TORQUE
22 N.m (16 lb-ft)
3
1
5
POWER
STEERING
PUMP
7
9
8
2
4
6
32. Remove the PCM cover.
ECM/PCM
COVER
ECM/PCM
22 N.m (16 lb-ft)
25. Remove the engine harness holder bolt on the side
engine mount.
26. Set the engine to TDC cylinder one.
27. Remove the crankshaft pulley.
28. Remove the timing belt.
29. Remove the timing belt idler pulley.
BOLTS (3)
30. Remove the engine intake upper cover bolts and
nuts. Then remove the cover and the PCV hose.
9.8 N.m (7.2 lb-ft)
33. Remove the PCM connectors and harness clip.
Remove the battery cables from the underhood
fuse box.
SPECIFIED TORQUE
6 x 1.0 mm
12 N.m (8.7 lb-ft)
2
6
UPPER
COVER
ENGINE WIRE
HARNESS
CONNECTOR
4
8
9.8 N.m
(7.2 lb-ft)
HARNESS
CLAMPS
10
ECM/PCM
CONNECTORS
12
11
7
9
3
5
1
PCV HOSE
HARNESS
CLAMPS
13-078
BRACKET
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34. Remove the appropriate Ignition coils based on the
diagnosis.
NOTE: Depending on the diagnosis, you will either
have to remove the rear bank ignition coils or both
ignition coil banks.
FRONT
SPARK PLUGS
22 N.m (16 lb-ft)
6 x 1.0 mm
12 N.m
(8.7 lb-ft)
IGNITION COILS
IGNITION COIL
CONNECTOR
REAR
IGNITION
COILS
SPARK PLUGS
22 N.m (16 lb-ft)
35. Depending on the diagnosis, remove some or all of
the following:
• ECT sensor connector
• Front rocker arm oil pressure switch connector
• Rear rocker arm oil pressure switch connector
• CMP sensor connector
• Front A/F sensor one connector
• Rear A/F sensor one connector
• Front secondary HO2S connector
• Rear secondary HO2S connector
• Rocker arm oil control solenoid A connector
(bank one)
• Rocker arm oil control solenoid A connector
(bank two)
• Rocker arm oil control solenoid B connector
(bank one)
• Alternator connector and positive alternator cable
•
•
•
•
•
A/C clutch switch connector
EGR 5P valve connector
Engine ground
Knock sensor
Fuel injector connectors and clips
36. Remove the quick-connect fitting cover, then
disconnect the fuel feed hose.
QUICK-CONNECT
FITTING COVER
6 x 1.0 mm
12 N.m
(8.7 lb-ft)
IGNITION COIL
CONNECTOR
FUEL FEED HOSE
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13-078
37. Remove the EVAP canister purge joint with the
bracket.
40. Separate the water passage from the heads.
GASKETS
Replace.
22 N.m
(16 lb-ft)
EVAP CANISTER
PURGE JOINT
WATER PASSAGE
CONNECTING
PIPE
12 N.m (8.7 lb-ft)
38. Remove the fuel rail connecting joint hose.
MOUNTING BOLT
22 N.m (16 lb-ft)
O-RING
Replace.
O-RING
Replace.
41. Remove the appropriate WU-TWC depending on
diagnosis.
NOTE: Set the WU-TWC aside and cover the
opening with shop towels to prevent coolant from
entering.
FRONT
GASKET
Replace.
QUICK-CONNECT
FITTING
FRONT
WU-TWC
NUTS
39. Remove the EGR pipe mounting bolts, then
remove the EGR pipe.
31 N.m
(23 lb-ft)
Replace.
GASKET
Replace.
GASKET
Replace.
EGR
PIPE
REAR
GASKET
MOUNTING
BOLTS
22 N.m
(16 lb-ft)
Replace.
REAR
WU-TWC
NUTS
31 N.m
(23 lb-ft)
Replace.
13-078
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42. Remove the appropriate head with the injector
base attached.
NOTE: Depending on diagnosis, you will remove
the rear bank head or both heads.
43. Measure the head bolts to determine if they need
replacement. If either diameter is less than
11.3 mm (0.445 in), replace the cylinder head bolt.
50 mm (1.97 in)
45 mm (1.77 in)
FRONT
5
3
7
1
B
8
2
A
6
4
REAR
5
3
1
7
8
2
4
6
NOTE: Below are the head bolt torque
specifications for reinstallation.
• First step: torque the cylinder bolts in sequence
to 29 N•m (22 lb-ft).
• Second step: tighten in sequence an additional
90 degrees.
• Third step: tighten in sequence an additional
90 degrees.
• If the bolts are new, tighten an additional
90 degrees.
FIRST STEP
THIRD STEP
SECOND STEP
(Newbolt)
44. Raise the vehicle.
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45. Remove the CKP sensor cover and bolts, then
disconnect the CKP sensor connector.
48. Using a flat blade screwdriver, separate the oil pan
from the engine block in the areas shown.
BOLT
12 N.m
(8.7 lb-ft)
CKP SENSOR
CONNECTOR
12 N.m (8.7 lb-ft)
CKP SENSOR
COVER
49. Remove the oil strainer and baffle plate.
46. Remove the torque converter case cover and the
four bolts securing the oil pan to the transmission.
BOLTS (4)
OIL
STRAINER
12 N.m
(8.7 lb-ft)
74 N.m (54 lb-ft)
12 N.m
(8.7 lb-ft)
O-RING
Replace.
12 N.m
(8.7 lb-ft)
TORQUE
CONVERTER
CASE COVER
50. Remove the appropriate pistons depending on
diagnosis, then go to PISTON CLEANING
PROCEDURE.
NOTE: When removing the piston rod caps, be
sure and keep all caps and bolts with their
corresponding pistons for reassembly purposes.
47. Remove all bolts securing the oil pan.
BOLTS
12 N.m (8.7 lb-ft)
9
5
BAFFLE
PLATE
1
3
7
11
13
15
16
17
18
12
14
13-078
10
6
2
4
8
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PISTON CLEANING PROCEDURE
1. Remove the piston rings from the piston using a
ring expander. Be careful not to damage the piston.
4. Press the handle on the piston ring groove cleaner
tool and slide the cleaning bit onto the appropriate
piston ring grooves.
OLD PISTON
RINGS
RING
EXPANDER
2. Spray the piston head and piston ring grooves
thoroughly with Honda throttle plate cleaner.
3. While holding the piston upright in your left hand,
take the piston ring groove cleaner tool in your right
hand and line up the cleaner tool guides with the
second (middle) piston ring groove.
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5. Once the cleaning bit is in the appropriate ring
grooves of the piston, make sure the tool handle
clicks in to place.
NOTE: There is only one notch on the tool for the
handle to engage.
13-078
6. Hold the piston steady and rotate the tool
counter-clockwise five to six times to remove any
carbon deposits in the piston ring grooves.
Do not rotate the tool clockwise.
NOTE: You can watch this procedure in the
Tech2Tech segment “How to Clean Piston Ring
Grooves”.
8. Finish cleaning the piston with throttle plate cleaner
and the nylon brush. Do not use a steel wire brush.
NOTE: Below are some examples of before and
after pictures. Depending on mileage and running
conditions, the pistons will achieve different levels
of cleanliness.
7. Remove the piston groove cleaning tool and clean
off the carbon from the tool bit.
13-078
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9. Install the piston rings as shown.
NOTE: The first (top) ring has a 1D manufacturing
mark and the second (middle) ring has an SPR
manufacturing mark. The manufacturing marks
must be facing upward.
12. Install the piston/connecting rod assembly into the
cylinder bore with the arrow on top of the piston
facing the timing belt side of the engine.
NOTE: Be careful not to damage the cylinder wall
when installing the piston.
ARROW
TOP RING
MANUFACTURING
MARKS
MANUFACTURING
MARKS
SECOND
RING
13. Measure the diameter of the connecting rod bolts to
determine if they need replacement. Calculate the
difference in diameter between point A and point B.
It should not be more than 0–0.1 mm (0–0.004 in).
35 mm (1.38 in)
B
A
20 mm (0.79 in)
10. Position the ring end gaps as shown.
NOTE: If the ring gaps are not positioned correctly,
excessive blowby may occur.
About 90°
OIL RING GAP
SECOND RING GAP
About 45°
TOP RING GAP and
SPACER RING GAP
OIL RING GAP
PISTON PIN
11. Apply new engine oil to the piston, the inside of the
piston ring compressor, and the cylinder bore.
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13-078
14. Apply new oil to the connecting rod bolt threads
and flanges. Torque the bolts to 20 N•m (14 lb-ft)
then tighten the connecting rod bolts an additional
90 degrees.
After torquing, turn bolt
another quarter turn.
CONNECTING
ROD MARK
BOLTS
20 N.m
(14 lb-ft)
CONNECTING
ROD
ROD CAP
CONNECTING
ROD BEARING
15. Reinstall the remaining components in the reverse
order of removal.
16. Replace spark plugs 1–4.
17. Replace the oil filter and refill all fluids.
18. Do the idle learn procedure.
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