GMC SCHOOL BUS

Published

1986-07-07

Model years

1983–1983

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.