K76992557
Service Bulletin Details
Public Details for: K76992557
Aftertreatment hydrocarbon injector (ahi, 7th injector) changes between us10 and us17 (ghg17, common rail fuel system) - chassis experiencing high soot accumulation, abnormal ( too high, overtemp, too low ) regeneration temperatures followi
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Models from 9999
| 9999 VOLVO VAH |
| 9999 VOLVO VHD |
| 9999 VOLVO VNL |
| 9999 VOLVO VNM |
| 9999 VOLVO VNR |
| 9999 VOLVO VT |
Models from 2020
| 2020 VOLVO VNX |
Models from 2019
| 2019 VOLVO VNX |
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| 2018 VOLVO VNX |
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| 2017 VOLVO VNX |
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| 2016 VOLVO VNX |
Models from 2015
| 2015 VOLVO VNX |
Models from 2014
| 2014 VOLVO VNX |
Models from 2013
| 2013 VOLVO VNX |
Solution K76992557 Monday, November 4, 2019 9:34:33 PM CET ** SOLUTION ** Title Aftertreatment Hydrocarbon Injector (AHI, 7th Injector) Changes Between US10 And US17 (GHG17, Common Rail Fuel System) - Chassis Experiencing High soot Accumulation, Abnormal ( Too High, Overtemp, Too Low ) Regeneration Temperatures Following An Aftertreatment Hydrocarbon Injector Nozzle Replacement Procedure Mack Models Mack Model LEU , LR , MRU - TerraPro , TE - TerraPro , AN - Anthem , CHU - Pinnacle, Axle back , CXU - Pinnacle, Axle front , GR - Granite , GU - Granite , PI - Pinnacle , TD Titan Volvo Models Volvo Model VNL , VNM , VNR , VNX , VAH , VHD , VT Emission Standard Emission Standard US10 , US10+OBD13 , US14+OBD13 , US14+OBD15 , US14+OBD16 , US14 CNG , US17 , US17+OBD16 , US17+OBD18 Engine family Engine family 11L Engine , 13L Engine , 16L Engine , MP7 , MP8 , MP10 ** SOLUTION ** Cause Solution Incorrect part number ( P/N ) AHI nozzle ( 7th Injector ) may have been installed. Model Year ( MY ) US17 changes to the AHI system have been made. MY US17 has been updated to a High flow nozzle. The low flow nozzle has been used for North American heavy duty engines since 2011. All US17 11L and 13L engines will now use the high flow nozzle ( 16L engines will continue to use the low flow nozzle ). The AHI nozzle tip of the low flow and the high flow nozzle are different in appearance. Other than this difference, the two nozzles are visually the same. NOTE: The high flow and the low flow aftertreatment hydrocarbon dosers have different flow rates. The difference between the aftertreatment hydrocarbon doser flow tests can be seen below. High flow aftertreatment hydrocarbon doser Low flow aftertreatment hydrocarbon doser Solution visibility Dealer distribution Function(s)/component(s) affected Function affected DOC , DPF , Fuel Dosing Function Group Function Group 258 emissions after-treatment Customer effect Main customer effect soot , regeneration , temperature , efficiency/abnormal behavior Fluid implicated Fuel Conditions Vehicle operating mode Frequency of occurrence of problem when driving , when stationary always Administration Author A241298 Last modified by A241298 Creation date 18-10-2017 16:10 Date of last update 16-10-2019 16:10 Status Published Average score 5 Number of scores 1 UNCONTROLLED COPY. Printed document is for temporary use only and should not be retained.