Recall
GMC C6 — 84V120000
NHTSA ID
84V120000
Make
GMC
Model
C6
Years Affected
1983
Recall Date
1984-10-02
Component
SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Units Affected
3,948
Completion Rate
—
Mfr Campaign No.
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.
Remedy
THE AIR TANK WILL BE INSPECTED AND, IF NECESSARY, THE AIR VALVE WILL BE REPLACED WITH ONE CONTAINING A STAINLESS STEEL SPRING.