# Service bulletins for the 1996 GMC W4

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.

16 bulletins from NHTSA, as of 2026-10-19.

- [130089009](/bulletins/10246631.md), 2023-12-11, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE \(ECU/ECM\). Expanded Availability for Remanufacture and Return \(R\&R\) Electronic Control Modules
- [17\-NA\-073](/bulletins/10232287.md), 2023-03-03, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
- [99066D](/bulletins/628925.md), 2002-03-25, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE ORHARD START DUE TO A DEPOSIT BUILD\-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INUJECTOR \(SCPI\) POPPET VALVE\(S\). \*TT
- [99066C](/bulletins/619002.md), 2001-05-10, Service bulletin: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. SOME VEHICLES MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START DUE TO A DEPOSIT BUILD\-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR \(SCPI\) POPPET VALVE\(S\). \*TT
- [99066C](/bulletins/617636.md), 2001-03-21, Service bulletin: VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME OWNERS OF 1996 \- 1999 S/T, M/L, C/K, G, P AND W4 TRUCKS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START DUE TO A DEPOSIT BUILD\-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR \(SCPI\) POPPET VALVE\(S\). \*TT
- [99066C](/bulletins/617575.md), 2001-03-19, Service bulletin: VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME OWNERS OF 1996 \- 1998 MODEL YEAR S/T, M/L, C/K, G, P AND W4 TRUCKS, THAT ARE REGISTERED IN CALIFORNIA, EQUIPPED WITH 4.3L, 5.0L OR 5.7L ENGINE, AND CALIFORNIA EMISSIONS, MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START DUE TO A DEPOSIT BUILD\-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR \(SCPI\) POPPET VALVE\(S\). \*TT
- [00148](/bulletins/616390.md), 2001-02-25, Service bulletin: UNKNOWN OR OTHER. SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE, OR HARD START DUE TO A DEPOSIT BUILD\-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR \(SCPI\) POPPET VALVE\(S\). THE DEPOSIT BUILD\-UP MAY CAUSE INJECTOR POPPETS TO STICK CLOSED. \*TT
- [99066B](/bulletins/613602.md), 2000-07-25, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START. \*\*MR
- [99066A](/bulletins/612133.md), 2000-06-06, Service bulletin: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. SOME VEHICLES MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START DUE TO A DEPOSIT BUILD UP ON THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR \(SCPI\) POPPET VALVE\(S\). \*TT
- [99066A](/bulletins/609762.md), 2000-04-10, Service bulletin: VEHICLE SPEED CONTROL:CRUISE CONTROL. SOME VEHICLES THAT ARE REGISTERED IN CALIFORNIA, EQUIPPED WITH A 4.3L, 5.0L OR 5.7L ENGINE AND CALIFORNIA EMISSIONS, MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START. \*TT
- [97061A](/bulletins/601868.md), 1998-08-28, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. EXHIBITING A CONDITION IN WHICH THE CLOSED SYSTEM DESIGN OF THE CURRENT PCV SYSTEM MAY ALLOW ENGINE OIL TO ENTER THE INTAKE SYSTEM. \*YC
- [97061A](/bulletins/601050.md), 1998-06-24, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. VEHICLES WITH DIESEL ENGINES MAY EXHIBIT A CONDITION IN WHICH THE CLOSED SYSTEM DESIGN OF THE CURRENT PCV SYSTEM MAY ALLOW ENGINE OIL TO ENTER THE INTAKE SYSTEM. \*YC
- [766504](/bulletins/52581.md), 1997-08-21, Service bulletin: ELECTRICAL SYSTEM:IGNITION:MODULE. MALFUNCTION INDICATOR LIGHT \(MIL\) ON, POOR DRIVEABILITY CONDITIONS \(PERFORM FLASH CALIBRATION\). \*TW
- [763101](/bulletins/52354.md), 1997-07-24, Service bulletin: STEERING:GEAR BOX \(OTHER THAN RACK AND PINION\). PREMATURE OUTSIDE EDGE WEAR ON RADIAL FRONT TIRES \(RESET TOE IN\). \*TW
- [767101](/bulletins/52353.md), 1997-07-24, Service bulletin: VEHICLE SPEED CONTROL. DELAYED UPSHIFT \(ADJUST ACCELERATOR CABLE/TPS/KICKDOWN SWITCH\). \*TW
- [666308](/bulletins/51245.md), 1997-06-27, Service bulletin: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP. REDUCED ENGINE PERFORMANCE \(REPLACE FUEL TANK CAP\). \*TW

JSON: [/v1/vehicles/1996_gmc_w4/bulletins](/v1/vehicles/1996_gmc_w4/bulletins)

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