1998 GMC K 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.

• 6092348Failure of the electronic diesel fuel injection pump, leading to complaints of poor performance or fuel economy, hard / no starts, hesitation, illumination of the service engine soon light.
• 6092333Some customers may comment that the black plastic housing around the outside rear view mirror turns chalky or IS dull in color.
• 6091427Some customers may comment on hard, no, or slow start, backfire or kickback during crank / start, grinding or unusual noises during crank, diagnostic trouble code p0338.
• 6089206Special policy adjustment covering the sequential central port fuel injector (scpi) failure condition.
• 6088963Some owners may complain that of noise from the clutch housing, clutch may not engage, clutch disc hub cracked / broken.
• 6088943Conditions with front doors difficult to open; not staying open; and doors are noisy and / or binding when opended.
• 632346Subject regarding revised drum brakes component specifications for pickup and utility models.
• 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.
• 628925Some 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).
• 628910Special policy adjustment for vehicles experiencing a failure of the electronic diesel fuel injection pump, leading to complaints of poor performance of fuel economy, hard/ no starts, hesitation, as well as illumination of the service engine soon light.
• 628905Some customers may comment on rough idle after start up, especially after setting overnight.
• 616390Service 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.
• 616378Experiencing an engine ticking sound coming from the engine compartment while the vehicles IS being driven.
• 616354Some vehicles may exhibit a malfunction indicator lamp (mil) on with diagnostic trouble code p0446 code set.
• 615080Information pertaining to new transmission calibrations.
• 615078Some vehicles may set a false obd II with diagnostic trouble code p1404.
• 614397Some owners may comment on an engine stall or a slight surge at a stop or when the transmission IS shifted into drive or reverse.
• 613602Some owners may experience a service engine soon light, misfire, rough idle or hard start. **Mr
• 612133Some 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).
• 611250Metal contamination may be found in the fuel filter and filter housing on vehicles with 6.5L diesel engines.
• 609762Some 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.
• 609743General motors began providing child restrain seat top tether hardware packages to customers in the united states who requested them.
• 609709Subject regarding a hard, no start or excessive gray or white smoke condition on start up after recent glow plug replacement.
• 609696Some customers may comment on rough idle after start up, and / or a service engine soon (ses) light illuminated.
• 609676Fuel solenoid driver located on the side of the fuel injection pump failed, causing vehicle to no start or stall.
• 609671Fluid leak near front wheels or front engine area. Yd
• 609641Park/neutral position switch connector cannot be removed. Yd
• 609582Rough idle after start, when vehicle has sat overnight and poppets sticking.
• 609579Oil weep or leak at gasket between upper and lower intake manifold. Yd
• 608390Subject on on-board diagnostic (obd) system improvements. *Mjs
• 608388Brake lead/pull and front brake wear. *Mjs
• 607570Some customers may comment about the service engine soon light illuminating.
• 606765Some cab chassis, crew cab, and pickup models may exhibit a brake lead / pull and front brake wear.
• 606576Customer may complain that the 4WD IS inoperative.
• 606549Subject regarding engine surge while trailering.
• 606149Customer may complain of noise from clutch housing, clutch may not engage, clutch disc hub cracked / broken.
• 605961Customer may comment on engine knocking noise.
• 603983Comments on an engine stall or a slight surge at a stop or when the transmission IS shifted into drive or reverse.
• 603827Comments about a moan type noise when the vehicle IS operated in the auto 4WD position and IS driven in deep sand, deep snow, or deep mud.
• 603825Subject regarding obd II diagnostic trouble code (dtc) p1404 (reflash vcm).

Every GMC K Series model year

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