1996 GMC C Series TSBs

SOME CUSTOMERS AND DEALERS MAY COMMENT ON ACCELERATED UNEVEN BRAKE PAD WEAR ON SOME VEHICLE WITH FOUR-PISTON FIXED CALIPER REAR DISC BRAKES.

INFORMATION USED WHEN DIAGNOSING NOISE CONDITIONS SUCH AS ENGINE RATTLE NOISE, SPARK KNOCK AT 2000 - 2500 RPM RANGE,...

SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE ORHARD START DUE TO A DEPOSIT BUILD-UP ON...

SPECIAL POLICY ADJUSTMENT FOR VEHICLES EXPERIENCING A FAILURE OF THE ELECTRONIC DIESEL FUEL INJECTION PUMP, LEADING TO...

SOME CUSTOMERS MAY COMMENT ON ROUGH IDLE AFTER START UP, ESPECIALLY AFTER SETTING OVERNIGHT.

SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE, OR HARD START DUE TO A DEPOSIT BUILD-UP ON THE SEQUENTIAL CENTRAL PORT...

SOME OWNERS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START.

SOME VEHICLES MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START DUE TO A DEPOSIT BUILD UP ON...

METAL CONTAMINATION MAY BE FOUND IN THE FUEL FILTER AND FILTER HOUSING ON VEHICLES WITH 6.5L DIESEL ENGINES.

SOME VEHICLES THAT ARE REGISTERED IN CALIFORNIA, EQUIPPED WITH A 4.3L, 5.0L OR 5.7L ENGINE AND CALIFORNIA EMISSIONS, MAY...

GENERAL MOTORS BEGAN PROVIDING CHILD RESTRAIN SEAT TOP TETHER HARDWARE PACKAGES TO CUSTOMERS IN THE UNITED STATES WHO REQUESTED THEM.

SOME CUSTOMERS MAY COMMENT ON ROUGH IDLE AFTER START UP, AND / OR A SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED.

ROUGH IDLE AFTER START, WHEN VEHICLE HAS SAT OVERNIGHT AND POPPETS STICKING.

OIL WEEP OR LEAK AT GASKET BETWEEN UPPER AND LOWER INTAKE MANIFOLD.

FAILURE OF THE ELECTRONIC DIESEL FUEL INJECTION PUMP, LEADING TO COMPLAINTS OF POOR PERFORMANCE OR FUEL ECONOMY, HARD /...

SUBJECT REGARDING ENGINE SURGE WHILE TRAILERING.

CUSTOMER MAY COMMENT ON ENGINE KNOCKING NOISE.

COMMENTS OF AN EXTENDED ENGINE CRANKING TIME DURING A HOT RESTART IN HIGH AMBIENT TEMPERATURES OF 38 C (100 F).

MANUEL TRANSMISSION RATTLE NOISE AT IDLE (INSTALL CONVENTIONAL FLYWHEEL).

GMC HAS DECIDED THAT A DEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY EXISTS IN CERTAIN 1995-1997 C/K EXTENDED CAB ABD 2...

The following information is provided to clearly explain Isuzus policy for control module (engine, transmission,...

ENGINE STALL, NO START, HARD START CONDITION.

INFORMATION REGARDING CORRECT VEHICLE APPLICATION FOR EATON.

INFORMATION REGARDING POOR RIDE QUALITY.

SUBJECT REGARDING A HARD, NO START OR EXCESSIVE GRAY OR WHITE SMOKE CONDITION ON START UP AFTER RECENT GLOW PLUG REPLACEMENT.

PARK/NEUTRAL POSITION SWITCH CONNECTOR CANNOT BE REMOVED.

SOME CUSTOMERS MAY COMMENT ON HARD, NO, OR SLOW START, BACKFIRE OR KICKBACK DURING CRANK / START, GRINDING OR UNUSUAL...

CONCERNS WITH INTERMITTENT MULTIFUNCTION ALARM ACTIVATION.

COMPLAINTS THAT THEIR VEHICLE IS DIFFICULT TO START OR WILL NOT START.

COMMENTS OF A NO START, STALL CONDITION.

EASY ENTRY SEAT NOISE, MOVEMENT, HIGH ADJUSTMENT EFFORT (REPLACE RISER ASSEMBLY).

INFORMATION REGARDING FUEL TRANSFER PUMP INOPERATIVE.

SOME CUSTOMERS MAY COMMENT ON INOPERATIVE SECONDARY FUEL TANK TRANSFER PUMPS.

TECHNICAL SERVICE BULLETIN REGARDING FUEL TRANSFER PUMP INOPERATIVE.

FUEL SOLENOID DRIVER LOCATED ON THE SIDE OF THE FUEL INJECTION PUMP FAILED, CAUSING VEHICLE TO NO START OR STALL.

SPECIAL POLICY ADJUSTMENT COVERING THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR (SCPI) FAILURE CONDITION.

SOME VEHICLES BUILT WITHIN VIN BREAKPOINTS XJ105482 AND XJ510031 MAY EXHIBIT INACCURATE FUEL GUAGE READINGS, VEHICLE...

COMMENTS THAT THE FUEL GAUGE INDICATES EMPTY AFTER ONLY GOING 200 TO 250 MILES, AND THEY ARE ONLY ABLE TO PUT...

SOME OWNERS MAY COMPLAIN THAT OF NOISE FROM THE CLUTCH HOUSING, CLUTCH MAY NOT ENGAGE, CLUTCH DISC HUB CRACKED / BROKEN.

TECHNICIANS MAY EXPERIENCE DIFFICULTY IN REMOVING THE CONNECTORS FROM THE PARK/NEUTRAL POSITION SWITCH, USUALLY WHEN...

AUTOMATIC TRANSMISSION 1-2 AND/OR 2-3 UPSHIFT SLIP/FLARE, NO 3RD OR 4TH GEAR, DTC P1870, LAUNCH SHUDDER (REVISE VCM WIRING).

TRANSMISSION FLUID LEAK FROM PUMP BODY (REPLACE BUSHING).

TRANSMISSION FLUID LEAK FROM PUMP BODY/REPLACE BUSHING.

TRANSMISSION FLUID LEAK FROM PUMP BODY (REPLACE BUSHING).

SOME CUSTOMERS AND DEALERS MAY COMMENT ON ACCELERATED UNEVEN BRAKE PAD WEAR ON F6-7 MEDIUM DUTY TILT CAB MODELS AND H6-7...

BRAKE LEAD/PULL AND FRONT BRAKE WEAR.

SOME CAB CHASSIS, CREW CAB, AND PICKUP MODELS MAY EXHIBIT A BRAKE LEAD / PULL AND FRONT BRAKE WEAR.

VEHICLES LEADING OR PULLING TO EITHER SIDE WHILE APPLYING THE BRAKES, AND PREMATURE FRONT BRAKE WEAR, ESPECIALLY...

VEHICLE LEADING OR PULLING TO EITHER SIDE WHILE APPLYING THE BRAKES OR FRONT BRAKE WEAR NOT MEETING EXPECTATIONS.

CHUGGLE/SURGE ON TCC APPLY/NO DTC'S (REFLASH THE POWERTRAIN CONTROL MODULE).

CHUGGLE/SURGE ON TCC APPLY/NO DTC'S (REFLASH PCM).

ELECTRICAL INTERFERENCE IN MOBILE (TWO-WAY) RADIO (REPROGRAM VCM-A).

Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules

SUBJECT ON ACCESSORY DRIVE BELT NOISE DUE TO POWER STEERING PUMP PULLEY MISALIGNMENT.

EFFECT OF STEERING BOX LIMITER ADJUSTMENT ON TURNING RADIUS AND POSSIBILITY OF POWER STEERING SYSTEM DAMAGE DUE TO IMPROPER ADJUSTMENT.

SUBJECT REGARDING SERVICE DIAGNOSIS/RECOMMENDATIONS FOR INOPERATIVE AIR CONDITIONING SYSTEMS.

CLUNK NOISE ON ACCELERATION AFTER A CLOSED THROTTLE COAST DOWN (NEW TCC CALIBRATION).

FIBER GLASS REAR FENDER PAINT STAR SHAPED CRACKS (INSTALL PROTECTIVE LINER).

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.