WenmarOpen by Wenmar Pro

Service bulletin IB-12-J-003-B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10055254
Published by NHTSA2014-05-01
Manufacturer's numberIB-12-J-003-B
Manufacturer's date2014-02-01
NHTSA componentENGINE

NHTSA's summary

ISUZU: INFORMATION CONCERNING THE INSTALLATION OF THE FUEL INJECTOR PIPES INTO A LONG BLOCK ASSEMBLY. 1999 - 2002 ISUZU FSR/FTR/FVR, 1999 - 2009 CHEVROLET OR GMC T6500/T7500/T8500, 2000 - 2004 CHEVROLET OR GMC WT5500, 2000 - 2004 ISUZU FRR, 2003 - 2009 CHEVROLET OR GMC C6500/C7500/C8500, 2004 - 2009 ISUZU FTR/FVR/FXR, 2005 - 2007 ISUZU HTR/HVR/HXR, 2005 - 2010 CHEVROLET OR GMC W3500/W4500/W5500, 2005 - 2015 ISUZU NPR/NPRHD/NQR/NRR, AND 2013 - 2014 ISUZU NPR. *JS

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
CHEVROLET C SERIES1999 to 2002
CHEVROLET C SERIES2007 to 2009
CHEVROLET W-SERIES2005 to 2010
GMC C SERIES1999 to 2002
GMC C SERIES2007 to 2009
GMC T-SERIES2006, 2007
GMC W-SERIES2005 to 2010
ISUZU F-SERIES1999 to 2009
ISUZU H-SERIES2005, 2006, 2007
ISUZU N-SERIES2005 to 2013

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
04-06-04-051J2024-10-31. Service bulletin. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
16-NA-3832024-07-16. Service bulletin. This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
15-00-89-004G2024-05-15. Service bulletin. This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
16-NA-3832024-03-19. Service bulletin. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
22-NA-0742024-02-29. Service bulletin. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
PI1394B2024-02-02. Service bulletin. This PI bulletin advises the technician on the proper way to install the pistons in an engine.
03-00-91-001I2023-11-22. Service bulletin. This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
WB11-X-001A2023-11-06. Service bulletin. The following information is provided to clearly explain Isuzu’s policy for control module (engine, transmission, antilock brake, instrument panel, body control, power interface, etc.) reprogramming. Control module calibrations are regularly updated for many reasons. These reasons may include, but are not limited to: model year change, software corrections, certification compliance, product improvement and specific application requirements. However, the mere existence of a newer control module calibration does not necessarily mean that warranty coverage exists or that the calibration must be installed. It is not our policy to update control modules, under warranty or after warranty, based solely on the availability of a newer calibration file. Below are our guidelines for reprogramming control modules.
23-NA-1532023-09-26. Service bulletin. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
18-NA-0732023-09-15. Service bulletin. This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.