Chevrolet and Gmc Recall 84V120000: Service Brakes, Air, Supply, Check Valve

NHTSA recall 84V120000 · announced October 2, 1984 · filed by General Motors Corp. · 3,948 units affected

The problem

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.

What to do

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

Official NHTSA recall notice →

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.

Vehicles covered by this recall

• 1983 Chevrolet C6
• 1983 Chevrolet C7
• 1983 Chevrolet P6
• 1983 Gmc C6
• 1983 Gmc C7

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.