Gmc C7 recalls by model year

Reported: 1984-10-02 (October 2, 1984) · Model years: 1983

THE DUAL AIR RESERVOIRS OF SOME TRUCKS WERE EQUIPPED WITH CARBON STEEL SPRINGS INSTEAD OF STAINLESS STEEL SPRINGS, AS INTENDED. THE CARBON STEEL SPRING IS MORE SUSCEPTIBLE TO RUSTING THAN THE STAINLESS STEEL SPRING. THIS RUSTING COULD CAUSE THE CHECK VALVE TO FAIL, CAUSING TOTAL LOSS OF FRONT AND REAR BRAKES.

Remedy: THE AIR TANK WILL BE INSPECTED AND, IF NECESSARY, THE AIR VALVE WILL BE REPLACED WITH ONE CONTAINING A STAINLESS STEEL SPRING.

Reported: 1985-07-02 (July 2, 1985) · Model years: 1983, 1984, 1985

THE FRONT AIR BRAKE HOSE MAY CONTACT THE INNER FENDER ON THE LEFT AND/OR RIGHT SIDES OF SOME TRUCKS. IN SOME INSTANCES, THE BRAKE HOSE MAY RUB THROUGH, RESULTING IN A LOSS OF AIR PRESSURE UPON BRAKE APPLICATION. CONSEQUENCE OF DEFECT: BRAKE HOSE MAY RUB THROUGH CAUSING AIR PRESSURE LOSS WHEN BRAKES ARE APPLIED AND REDUCED BRAKING ABILITY. A REDUCTION OF BRAKING ABILITY AT A TIME WHEN MINIMUM STOPPING DISTANCE IS REQUIRED COULD RESULT IN A VEHICLE CRASH WITHOUT PRIOR WARNING.

Remedy: INSTALL NEW BRAKE CHAMBER SUPPORT BRACKETS, BRAKE LINE ELBOWS, AND AIR BRAKE HOSES, AS NECESSARY.

Reported: 1985-09-11 (September 11, 1985) · Model years: 1985

THE FUEL RETURN HOSE BETWEEN THE SWITCHING VALVE AND THE FUEL TANK SENDING UNITS MAY BE INCORRECTLY CONNECTED. CONSEQUENCE OF DEFECT: FUEL SUPPLIED BY ONE TANK IS RETURNED TO THE OTHER TANK WHICH COULD OVERFILL AND LEAK. FUEL COULD IGNITE AND CAUSE A FIRE.

Remedy: REPOSITION FUEL RETURN HOSES AND REPLACE FUEL VAPOR CANISTER.

Reported: 1986-12-22 (December 22, 1986) · Model years: 1985, 1986

THE POWER STEERING ASSIST CYLINDER MOUNTING BRACKET BOLTS MAY LOOSEN DUE TO PAINT ON THE BOLT THREADS AND THE MOUNTING BRACKET MATING SURFACE. CONSEQUENCE OF DEFECT: THIS MAY RESULT IN LOOSENESS AND ERRATIC STEERING DURING FULL TURNS. WITH CONTINUED OPERATION POWER CYLINDER COULD DETACH FROM THE FRAME RAIL RESULTING IN RESTRICTED STEERING, SEVERING OF FRONT BRAKE HOSE AND LOSS OF FRONT AXLE BRAKING. WITH EITHER CONDITION, A VEHICLE CRASH COULD RESULT.

Remedy: REMOVE PAINT FROM MATING SURFACES OF BRACKET AND FRAME RAIL; REPLACE POWER STEERING ASSIST CYLINDER MOUNTING BOLTS.

Reported: 1989-11-30 (November 30, 1989) · Model years: 1985, 1986, 1987, 1988, 1989, 1990

THE FRONT AIR BRAKE HOSES CAN CONTACT THE INNER FENDER EXTENSIONS.

Consequence: THIS INTERFERENCE CAN CHAFE THE BRAKE HOSES TO THE POINTOF RUPTURE, RESULTING IN LOSS OF FRONT BRAKES WITH POTENTIAL FOR AN ACCIDENT.

Remedy: CUT OUT A PORTION OF INNER FENDER EXTENSIONS TO PREVENT INTERFERENCE. ALSO, REPLACE ANY DAMAGED FRONT BRAKE HOSES.

Reported: 1994-01-08 (January 8, 1994) · Model years: 1993

THE INTERMEDIATE STEERING SHAFT WAS ASSEMBLED WITH LOOSE OR MISSING UPPER AND LOWER PINCH BOLTS WHICH MAY CAUSE SEPARATION OF THE SHAFT.

Consequence: SEPARATION OF THE INTERMEDIATE STEERING SHAFT RESULTS IN TOTAL LOSS OF STEERING CONTROL AND COULD CAUSE AN ACCIDENT.

Remedy: DEALERS WILL PROPERLY TORQUE LOOSE PINCH BOLTS AND INSTALL PINCH BOLTS WHERE NECESSARY.

Reported: 1995-02-16 (February 16, 1995) · Model years: 1995

THE SEATS OF THESE VEHICLES CAN HAVE INCOMPLETE WELDED LEFT SIDE SEAT BACK FRAME EXTENDER ARM WELDS. VEHICLES WITH AFFECTED SEATS DO NOT COMPLY WITH FMVSS NO. 207, "SEATING SYSTEMS."

Consequence: COSEQUENCE OF NON-COMPLIANCE: THIS CONDITION CAN CAUSE THE SEAT TO COLLAPSE DURING A VEHICLE ACCIDENT AND WOULD NOT PROPERLY PROTECT THE OCCUPANT.

Remedy: DEALERS WILL INSPECT THE LEFT SIDE SEAT BACK EXTENDER ARMS OF THE SEATS FOR MISSING WELDS. WELDS SHOULD BE ON BOTH SIDES OF THE SEAT BACK EXTENDER ARM. IF A WELD IS MISSING, THE AFFECTED SEAT BACK FRAME ASSEMBLY(IES) WILL BE REPLACED.

Reported: 1995-07-05 (July 5, 1995) · Model years: 1995

THESE VEHICLES WERE ASSEMBLED WITH A TRANSMISSION REVERSE SIGNAL SWITCH THAT COULD LEAK CAUSING LOSS OF ELECTRICAL CONTACT WHEN THE TRANSMISSION IS IN REVERSE. THIS DOES NOT MEET THE REQUIREMENTS OF FMVSS NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."

Consequence: CONSEQUENCE OF NON-COMPLIANCE: THIS CONDITION CAN PREVENT THE BACKUP WARNING SYSTEM (LIGHTS AND AUDIBLE ALARMS) FROM OPERATING PROPERLY, INCREASING THE POTENTIAL FOR AN ACCIDENT.

Remedy: DEALERS WILL REPLACE THE REVERSE SIGNAL PRESSURE SWITCH.