1998 Chevrolet 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.

• 10004369Release of new park brake cable assemblies and lubrication maintenance information for certain medium duty tilt cab models.
• 10004297Effect of steering box limiter adjustment on turning radius and possibility of power steering system damage due to improper adjustment. Various 1990-2004 models.
• 10000739Automatic engine shutdown feature.
• 10000076Passenger door outside rearview mirror vibration on certain vehicles including the 2000 - 2001 wt500 series medium duty tilt cab models.
• 6092340Some customers may comment on reduced brake pad / lining life.
• 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.
• 6089191A condition with a rusty transmission fluid level indicator / transmission oil filler tube.
• 6089154Some customers may comment about a knocking or grinding noise with the engine running.
• 6088933Vehicles may exhibit a knocking or grinding noise with the engine running.
• 6088912Concerns that the driver or passenger front power seat forward and rearward function IS inoperative.
• 634983Some customers may comment about instability of the a/c condenser or that the a/c system IS inoperative.
• 634968Concern with no shift, harsh shift, no engagement, transmission in default, check transmission warning indicator illuminated, range inhibited indicator illuminated, transmission diagnostic trouble codes set on f-model medium duty tilt cab models.
• 634850Some customers and dealers may comment on accelerated uneven brake pad wear on some vehicle with four-piston fixed caliper rear disc brakes.
• 631668Customers may complain that the engine will not start.
• 631256Customers may complain that the engine will not start. *Slc
• 629530Subject regarding service diagnosis/recommendations for inoperative air conditioning systems.
• 629484Some customers may comment on service engine soon lamp on, malfunction indicator lamp illuminations intermittently, diagnostic trouble code set, blown fuses, and engine will not start.
• 629474Subject regarding steering gear grease seepage from around sector (output) shaft (install new sector (output) shaft seals).*jg
• 628945Some customers and dealers may comment on accelerated uneven brake pad wear on F6-7 medium duty tilt cab models and H6-7 conventional medium duty 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).
• 628905Some customers may comment on rough idle after start up, especially after setting overnight.
• 628902Concerns about a slipping clutch or early clutch failure.
• 627790Information regarding fuel transfer pump inoperative.
• 627737Information regarding correct vehicle application for eaton. 1990-2002 chevrolet and GMC c-series conventional and t-series tilt cab medium duty models.
• 625268Subject on hood hinge rattle coming from either or both front corners of the instrument panel near the hood hinge areas for 1995 - 2002 pickup and utility models.
• 624075Some vehicles may exhibit a service engine soon lamp on, malfunction indicator lamp illuminates intermittently, anti-lock brake system warning light illuminated, diagnostic trouble codes set, and / or blown fuses.
• 623445Some customers may comment on inoperative secondary fuel tank transfer pumps.
• 623426Technical service bulletin regarding fuel transfer pump inoperative.
• 619242This message concerns certain 1997 through 2001 medium duty trucks with spicer seven speed manual transmissions exhibiting heavy vibration that increases with speed and / or an oil leak and / or a cracked engine block.
• 619181On certain models including my2000 - 2001 chevrolet and GMC wt5500 series, the service engine soon (ses) indicator IS illuminated with diagnostic trouble code 0226 set.
• 617754Some vehicles equipped with bendix ABS air brakes have a condition in which the vehicle may have unwanted temporary ABS activation at low speeds.
• 617737Subject regarding misalignment of air intake duct when closing cab.
• 617667Information on the pulling the negative battery cable before pulling the drl relay when performing campaign 00043 drl noncompliance on 1998 gm and chevrolet t-pickup and utilities with the ZR2 high rider performance package.
• 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.
• 615099Customer satisfaction campaign for pickup and utility model vehicles built with low levels of rear axle oil.
• 615080Information pertaining to new transmission calibrations.
• 615078Some vehicles may set a false obd II with diagnostic trouble code p1404.
• 615077Brief information regarding rusty transmission fluid level indicator.

Every Chevrolet T Series model year

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