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 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Engine are shown. Show all
| 130089009 | 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 |
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| 99066D | 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 |
| 99066B | 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 |
| 97061A | 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 | 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 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.