Mack MR, MC +13 more: Not Entered

Affects Mack MR, MC, RWL, RWS, RD, DMM, RM, DM, F, U, MB, R, RL, WS, RS · 1977–1978 — about 160 vehicles.

The hazard

TRUCKS EQUIPPED WITH BOGIE (TANDEM REAR) AXLES THAT ARE EQUIPPED TRUCKS EQUIPPED WITH BOGIE (TANDEM REAR) AXLES THAT ARE EQUIPPED WITH A SINGLE ANTI-WHEEL LOCK CONTROLLER. WHEEL SENSOR WIRE FAILURES MAY CAUSE DELAYS OF UP TO TWO SECONDS IN IMPLEMENTING THE ANTI-WHEEL LOCK SYSTEM ON THE BOGIE AXLES. THIS DELAY RESULTS IN A REDUCTION OF THE VEHICLE'S FULL BRAKING CAPABILITY.

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational