# Service bulletins for the 1998 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.

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

- [Recalls](/bulletins/10248444.md), 2024-01-08, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Vehicle Recalls
- [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.
- [16NA260](/bulletins/10082506.md), 2016-10-17, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE MEDIA DISC PLAYER WITH THE LATEST CALIBRATIONS TO CORRECT A CONDITION OF THE REAR ENTERTAINMENT SYSTEM NOT OPERATING AS INTENDED IN COLDER AMBIENT TEMPERATURE AREAS DUE TO CALIBRATION CONCERNS.
- [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
- [98046](/bulletins/615107.md), 2000-12-28, Service bulletin: STEERING. SOME VEHICLES MAY EXHIBIT A CONDITION IN WHICH THE INTERMEDIATE STEERING SHAFT\-TO\-STEERING GEAR ATTCHING BOLT MAY HVE BEEN UNDER\-TORQUED. THIS PRODUCT SAFETY CAMPAIGN INVOLVES INSPECTING THE BOLT FOR DAMAGE. \*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
- [877163A](/bulletins/603983.md), 1999-03-12, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. COMMENTS ON AN ENGINE STALL OR A SLIGHT SURGE AT A STOP OR WHEN THE TRANSMISSION IS SHIFTED INTO DRIVE OR REVERSE. \*YC

JSON: [/v1/vehicles/1998_gmc_w4/bulletins](/v1/vehicles/1998_gmc_w4/bulletins)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%201998%20GMC%20W4&page=https%3A%2F%2Fopen.wenmarpro.com%2Fmakes%2Fgmc%2Fw4%2F1998%2Fbulletins&vehicle=1998%20GMC%20W4)