1994 GMC C Series(Light) technical service bulletins

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

• Sep 1, 2013 Service bulletinExpanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
• Jun 1, 1997 Service bulletinNo upshift/2ND gear only after cold start-intermittent DTC 87 - high ratio error (replace eprom)
• Jun 1, 1997 Service bulletinSpecial policy adjustment - linear exhaust gas recirculation system
• Apr 1, 1997 Service bulletinEngine hard to start (replace fuel pump pulsator)
• Feb 1, 1997 Service bulletinPolicy adjustment - linear exhaust gas recirculation system
• Feb 1, 1997 Service bulletinManual transmission rattle noise at idle (install conventional flywheel)
• Apr 1, 1995 Service bulletinStepper motor cruise control will not resume or reset (replace smcc module)
• Feb 1, 1995 Service bulletinClutch pedal squeak noise
• Feb 1, 1995 Service bulletinInoperative or erratic speedometer and/or vehicle shifts down into second gear or will not shift out of...
• Feb 1, 1995 Service bulletinRear liftglas does not release/inoperative
• Feb 1, 1995 Service bulletinCold engine knock
• Jan 1, 1995 Service bulletinNew cast iron exhaust manifold and stainless steel gasket to correct engine noise condition
• Jan 1, 1995 Service bulletinRear liftglass does not release/inoperative
• Jan 1, 1995 Service bulletinWiper blade chatter
• Jan 1, 1995 Service bulletinBlack smoke only after injection pump replacement
• Dec 1, 1994 Service bulletinOil pressure gauge reading concerns
• Dec 1, 1994 Service bulletinRevision to product emission campaign 94-C-28 - emission label error
• Dec 1, 1994 Service bulletinGeneral motors has determined that certain 1994 gmc c/k trucks and g vans may experience poor throttle...