GMC · Canada · High
GMC School Bus: Brakes
Affects GMC School Bus · 1983 — about 1 vehicles.
The hazard
SEVERE BRAKE CHATTER MAY CAUSE THE BRAKE CHAMBER MOUNTING BRACKETS TO DEVELOP CRACKS IN THE WELD AREA WHERE THE S-CAM SHAFT TUBE ATTACHES TO THE CHAMBER SUPPORT SECTION. IF NOT CORRECTED THE CRACK CAN GO ALL THE WAY THROUGH THE WELD,CAUSING THE BRACKET TO BREAK, RESULTING IN LOSS OF BRAKING AT THE FRONT WHEEL. CORRECTION:INSPECT AND REPLACE,IF REQUIRED,THE FRONT BRAKE CHAMBER MOUNTING BRACKETS AND INSTALL A FRONT BRAKE LIMITING VALVE. BUS LOCATED IN ONTARIO,V.I.N.IGDK691B9EV540694.
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