1983 Gmc C7 Recalls

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NHTSA Campaign Number: 85V085000
Manufacturer: GENERAL MOTORS LLC
Manufactured Begin Date: October 1st, 1982
Manufactured End Date: November 1st, 1984

Defect Summary:
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.

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

Recall Notes:
VEHICLE DESCRIPTION: MEDIUM DUTY TRUCKS EQUIPPED WITH TILT HOODS, 7000# FRONT AXLE AND AIR BRAKES.SYSTEM: FRONT BRAKE HOSE.

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NHTSA Campaign Number: 84V120000
Manufacturer: GENERAL MOTORS LLC
Manufactured Begin Date: December 1st, 1982
Manufactured End Date: August 1st, 1983
Date of Owner Notification: October 17th, 1984

Defect Summary:
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.

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

Recall Notes:
VEHICLE DESCRIPTION: MEDIUM TRUCKS EQUIPPED WITH AIR BRAKES.SYSTEM: SERVICE BRAKES; AIR SUPPLY CHECK VALVE.CONSEQUENCES OF DEFECT: IF AN AIR LEAK WERE TO OCCUR AND THE DRIVER DID NOTHEED WARNINGS, AN ACCIDENT COULD RESULT.