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Service bulletin IB-14-X-001

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 id10056373
Published by NHTSA2014-11-13
Manufacturer's numberIB-14-X-001
Manufacturer's date2014-08-01
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

ISUZU: INFORMATION REGARDING CORROSION INHIBITOR IMPROVEMENT THAT CHANGES COLOR OF COOLANT TO A DARK COLOR AND IS ADDED AT PORT TO BOTH RADIATOR AND SURGE TANK. *PE

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
ISUZU N SERIES1998 to 2004
ISUZU N-SERIES1997 to 2013
ISUZU NPR1994, 1995, 1996, 1997, 1998, 1999
ISUZU NPR2000 to 2005
ISUZU NPR2006, 2007, 2008, 2009, 2010
ISUZU NPR2012
ISUZU NPR HD1995, 1996 (the catalog's model; the bulletin names a series or trim of it)
ISUZU NPR HD1998, 1999 (the catalog's model; the bulletin names a series or trim of it)
ISUZU NPR HD2000 to 2001
ISUZU NPR HD2005
ISUZU NPR HD2006, 2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
ISUZU NPR-HD2004 to 2005
ISUZU NQR1999, 2000, 2001, 2002, 2003, 2004
ISUZU NQR2005 to 2010
ISUZU NQR2012
ISUZU NRR1994
ISUZU NRR1995 to 2010

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

Recalls for the same vehicles and component
10V6360002010-12-15. ENGINE AND ENGINE COOLING

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
IB09-X-004C2022-08-02. Service bulletin. The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to Isuzu dealer technicians repairing Isuzu vehicles in and out of vehicle warranty. A TAC case number will be issued solely for information tracking purposes and future contact reference.
SB-12-J-0052012-10-31. Service bulletin. ISUZU (CHEVROLET/GMC): TRUCKS WITH DIESEL ENGINE WOULD HAVE IDLE VIBRATION, TROUBLE STARTING, ENGINE NOT REVVING UP, AND A LACK OF POWER DUE TO POSSIBLE OPERATION CONDITION OF SUCTION CONTROL VALVE (SCV)/FUEL RAIL PRESSURE (FRP) REGULATOR BEING INTERMITTENT. MODELS 2004-2010 CHEVROLET/GMC C, T, W SERIES AND ISUZU F, H, N SERIES. *PE
IB-10-J-0022011-04-27. Service bulletin. IZUZU: 2011 IZUZU N-SERIES ARE EQUIPPED WITH A SELECTIVE CATALYST REDUCTION SYSTEM THAT REDUCES NITROGEN OXIDE EMISSIONS FROM A DIESEL ENGINE. *RM
SB-09-J-0062010-08-06. Service bulletin. ISUZU/GMC/CHEVROLET: OIL RELATED MISDIAGNOSIS-ENGINE OIL DIPSTICK CALIBRATION INCORRECT. MODELS EQUIPPED WITH DIESEL PARTICULATE FILLER (DPF) AND WHOLESALED BEFORE 12/03/09, WERE BUILT WITH AN INCORRECT ENGINE OIL DIPSTICK CALIBRATION. THE INCORRECT CALIBRATION CAUSES AN OVERFILLED CONDITION OF APPROXIMATELY 1.5QTS WHEN AT THE FULL MARK. *PE
IB-09-J-0032009-12-02. Service bulletin. ISUZU/CHEVROLET/GMC: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE FOLLOWING TABLE CONTAINS MANY POSSIBLE CAUSES FOR THE FOLLOWING SYMPTOMS. HARD START/NO START; ROUGH, MISFIRE, UNSTABLE OR INCORRECT IDLE; SURGES, LACK OF POWER, HESITATION, LAG OR STUMBLE. WHILE SOME OF THESE SYMPTOMS MAY LEAD TO COMPONENT REPLACEMENT, THE REPLACEMENT SHOULD NOT BE CONSIDERED A COMPLETED REPAIR. THESE TYPES OF SYMPTOMS HAVE A HIGH PROBABILITY FOR A REPEAT REPAIR SINCE THE TRUE SOURCE OF THE FAILURE IS TYPICALLY FUEL CONTAMINATION. *PE UPDATED 3/23/12. *PE
SB-08-J-0032009-01-14. Service bulletin. CHEVROLET, GMC AND ISUZU TRUCKS: LACK OF POWER, ENGINE WILL NOT REV UP, IDLE VIBRATION, ENGINE STARTING CONCERNS, DTCS P1093, P0087, P1087, P0088 AND/OR P1088 SET (DIAGNOSE AND REPLACE SUCTION CONTROL VALVE (SCV) (FUEL PRESSURE REGULATOR (FPR), IF NECESSARY). *PE UPDATED 2/13/09. *PE UPDATED 4/5/10. *PE UPDATED 11/2/11. *PE
0706040212007-10-09. Service bulletin. LACK OF POWER, ENGINE WILL NOT REV-UP, IDLE VIBRATION, ENGINE STARTING CONCERNS, DTC;S P1093, P0087, P1087, P0088 AND/OR P1088 SET (DIAGNOSE AND REPLACE SUCTION CONTROL VALVE (SCV) (FUEL PRESSURE REGULATOR (FPR)), IF NECESSARY) *NJ
0506930012007-04-11. Service bulletin. ENGINE LOW POWER, WHISTLING-TYPE NOISE FROM ENGINE (REPLACE TURBO TO CHARGE AIR COOLER HOSE CLAMP). *KB
0606040612007-04-11. Service bulletin. ENGINE OIL PRESSURE WARNING LIGHT ILLUMINATED, ENGINE OIL SEEPAGE/LEAKING ONTO GROUND IN EXTREMELY LOW AMBIENT TEMPERATURES (REPLACE PCV HOSE AND BRACKET/INSTALL NEW CATCH TANK COVER). *KB
0506040352006-05-08. Service bulletin. USAGE OF E85 FUELS IN GM VEHICLES. 1997 - 2008 ALL GM CARS AND TRUCKS. 1997 - 2008 ALL SATURN VEHICLES. *TT UPDATED. *KB UPDATED ON 10/22/07. *NJ