1992 GMC T Series

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 10244945The following information is provided to clearly explain Isuzus policy for control module (engine, transmission, antilock brake, instrument panel, body control, power interface, etc.) reprogramming. Control module calibrations are regularly updated for many reasons. These reasons may include, but are not limited to: model year change, software corrections, certification compliance, product improvement and specific application requirements. However, the mere existence of a newer control module calibration does not necessarily mean that warranty coverage exists or that the calibration must be installed. It is not our policy to update control modules, under warranty or after warranty, based solely on the availability of a newer calibration file. Below are our guidelines for reprogramming control modules.
• 10004297Effect of steering box limiter adjustment on turning radius and possibility of power steering system damage due to improper adjustment. Various 1990-2004 models.
• 6089330Special policy adjustment for vehicles experiencing a hard start condition, rough running engine, a service engine soon light, misfire, no start, stalls or catalytic converter order due to failure of the central multiport fuel injection (cmfi) fuel system.
• 628938Information used when diagnosing noise conditions such as engine rattle noise, spark knock at 2000 - 2500 rpm range, under a moderate to heavy load with a warmed up engine.
• 627737Information regarding correct vehicle application for eaton. 1990-2002 chevrolet and GMC c-series conventional and t-series tilt cab medium duty models.
• 616349Some owners may comment on high oil consumption after a gm goodwrench remanufactured 4.3L V6 engine IS installed.
• 612157Some vehicles may experience a hard start condition, rough running engine, a service engine soon light, misfire, no start, stalls or catalytic converter odor due to failure of the central multiport fuel injection (cmfi) fuel system also known as central port injection (cpi).
• 609759Some vehicles registered in the state of california and equipped with 4.3L engines and california emissions may experience a hard start condition, rough running engine, a service engine soon light, misfire, no start, stalls or catalytic converter odor.
• 609743General motors began providing child restrain seat top tether hardware packages to customers in the united states who requested them.
• 607944Special policy covering failure of the central multiport fuel injection (cmfi) system.
• 603080Some operators may comment about a front end shke or a vibration in the front end.
• 602749Comments about a shake or vibration in the front end of the vehicle.

Every GMC T Series model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.