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Service bulletin 0502001

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 id10014792
Published by NHTSA2005-05-10
Manufacturer's number0502001
Manufacturer's date2005-03-01
NHTSA componentFUEL SYSTEM, OTHER

NHTSA's summary

PERCEIVED FUEL ECONOMY AND DRIVER INFORMATION CENTER SETTING. *EH

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

Fuel system

Vehicles listed
ISUZU ASCENDER2003, 2004

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
16NA3832020-06-22. 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.
05-06-04-035D2018-05-21. Service bulletin. This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.
05-06-04-035E2017-08-15. Service bulletin. This informational bulletin provides dealership personnel with information on flexible fuel vehicles (FFVs) and the usage of E85 fuel in GM vehicles.
SB16-02-S001A2016-11-04. Service bulletin. SOME 2003-2004 MODEL YEAR ISUZU ASCENDER VEHICLES CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. A FRACTURED ICV COULD ALLOW FUEL VAPORS TO PASS THROUGH AND DROPLETS OF FUEL TO ACCUMULATE ON THE SIDE OF THE FUEL TANK AS IT PASSES OVER THE FRACTURE DURING REFUELING. IF THE ICV FRACTURES, THE VEHICLE’S SERVICE ENGINE SOON (SES) LIGHT MAY ILLUMINATE, AND THE OWNER MAY NOTICE A FUEL ODOR AND/OR A FEW DROPS OF FUEL ON THE GROUND WHEN REFUELING THE VEHICLE. THIS SPECIAL COVERAGE COVERS THE CONDITION DESCRIBED FOR A PERIOD OF 15 YEARS OR 150,000 MILES WHICHEVER OCCURS FIRST, FROM THE DATE THE VEHICLE WAS ORIGINALLY PLACED IN SERVICE, REGARDLESS OF OWNERSHIP.
CSB-07-02-S0032014-04-23. Service bulletin. ISUZU: SEE DOCUMENT SEARCH BUTTON FOR THE OWNER LETTER. THE MALFUNCTION INDICATOR LIGHT (MIL) IS ON, DUE TO FRACTURE OF WELD ON FUEL TANK INLET CHECK VALVE (ICV), A FUEL ODOR, AND/OR DROPS OF FUEL ON GROUND WHEN REFUELING VEHICLE. MODEL 2003-2004 ASCENDER. *PE
07020012007-04-06. Service bulletin. VARIOUS DRIVEABILITY SYMPTOMS DUE TO CLOGGED FUEL INJECTORS, MIL DTC'S P0171, P0172, P0174, P0300, P1174, AND P1175. *KB UPDATED 08-03-07. *KB
0402S0042004-11-03. Service bulletin. VEHICLE IS DIFFICULT TO FILL WITH FUEL OR FILLING STATION PUMP SHUTS OFF BEFORE TANK IS FULL OR FUEL SPITS BACK/OUT WHEN FILLING THE TANK. *TT
0402S0022004-05-07. Service bulletin. MULTIPLE DRIVEABILITY SYMPTOMS DUE TO CLOGGED FUEL INJECTORS. *TT
0402S0012004-04-16. Service bulletin. INTERMITTENT HESITATION, STUMBLE OR IDLE STALL AFTER SOAK, HARSH 1-2 SHIFT, SLIPPING 1-2 SHIFT FOLLOWED BY A HARSH ENGAGEMENT. *TT