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Service bulletin 070604021

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 id10022962
Published by NHTSA2007-10-09
Manufacturer's number070604021
Manufacturer's date2007-08-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

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

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

Trouble codes named

P0087, P0088, P1087, P1088, P1093

Vehicles listed
CHEVROLET C65002004 to 2007
CHEVROLET C75002004 to 2007
CHEVROLET C85002004 to 2007
CHEVROLET T65002004 to 2007
CHEVROLET T75002004 to 2007
CHEVROLET T85002004 to 2007
CHEVROLET W-SERIES2005 to 2007
GMC C65002004 to 2007
GMC C75002004 to 2007
GMC C85002004 to 2007
GMC T65002004 to 2007
GMC T75002004 to 2007
GMC T85002004 to 2007
GMC W-SERIES2005 to 2007
ISUZU FTR2004 to 2007
ISUZU FVR2004 to 2007
ISUZU FXR2004 to 2007
ISUZU HTR2004 to 2007
ISUZU HVR2004 to 2007
ISUZU HXR2004 to 2007
ISUZU NPR2005
ISUZU NPR2006, 2007
ISUZU NQR2005 to 2007
ISUZU NRR2005 to 2007

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.
IB-14-X-0012014-11-13. Service bulletin. 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
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
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