Gmc School Bus — Engine
High risk
Feb 3, 1993
Model years: 1990, 1991
THE THROTTLE CAM LEVER COULD DISENGAGE FROM THE THROTTLE DRIVE SHAFT WHICH COULD ALLOW THE ENGINE TO GO TO WIDE OPEN THROTTLE. LOSS OF ACCELERATOR CONTROL COULD RESULT IN A VEHICLE
Gmc School Bus — Brakes
High risk
Feb 19, 1991
Model years: 1986, 1987, 1988, 1989, 1990
NOTE: MODEL B6P042 BUSES. ON VEHICLES EQUIPPED WITH HYDRAULIC BRAKES AND ALLISON AT545 AUTOMATIC TRANSMISSION, THE TRANSMISSION MOUNTED PARKING BRAKE DRUM ATTACHMENT BOLTS MAY LOOS
Also affects: Chevrolet School Bus
Gmc School Bus — Fuel System
High risk
Jun 2, 1989
Model years: 1986, 1987, 1988, 1989
THE FUEL TANK MAY EXHIBIT A CRACK ADJACENT TO THE SEAM WELD ATTACHING THE TANK END CAP. THIS CRACK CAN MANIFEST ITSELF AS EITHER A DAMP SPOT OR A SLIGHT DRIPPING. IN THE PRESENCE O
Gmc School Bus — Brakes
High risk
Aug 4, 1987
Model years: 1983, 1984, 1985, 1986, 1987
SEVERE BRAKE CHATTER MAY CAUSE THE FRONT AXLE BRAKE CHAMBER MOUNTING BRACKETS TO DEVELOP CRACKS IN THE WELD AREA WHERE THE S-CAM TUBE ATTACHES TO THE CHAMBER SUPPORT SECTION. BRACK
Also affects: Gmc C6, Gmc C7
Gmc School Bus — Not Entered
High risk
Oct 15, 1984
Model years: 1982, 1983, 1984
FAILURE OF THE BRAKE CONTROL MODULE MAY OCCUR WHEN THE PRIMARY BRAKE BOOSTER SYSTEM IS NOT OPERATING. IF THIS MODULE WERE TO FAIL AND A FAILURE OF THE PRIMARY BRAKE BOOSTER SYSTEM
Also affects: Chevrolet School Bus, Gmc Forward Control