Recalls for 1987 Gmc B6p042

DEFECT #1 - FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP

Posted on: 1989-06-05
Description
A crack may develop adjacent to the fuel tank seam weld attaching the tank end cap.

Consequence
This could result in a leak or dripping from the fueltank with potential fire hazzard.

Corrective Action
Install limiter cushions on the tank support brackets or replace tank, if necessary.

Notes
System: fuel tank.vehicle description: school bus chassis w/350 or 366 cu.  In.  Gasoline engines.

DEFECT #2 - SERVICE BRAKES, AIR:DRUM:CHAMBER

Posted on: 1987-08-07
Description
Severe brake chatter may cause the brake chamber mounting brackets on either side to develop cracks in the weld area where the s cam shaft tube attaches to the chamber support section.

Consequence
Brackets can break, resulting in loss of braking abilityat that front wheel, and possibly restricted steering, which could lead to avehicle crash without prior warning.

Corrective Action
As necessary, install new reinforced front brake chamber mounting brackets and install a front brake limiting valve on vehicles without one.

Notes
System: brakesvehicle description: school buses equipped with 7,500 lb.  Front axle and mediumduty trucks equipped with a 7,000 lb.  Front axle.

DEFECT #3 - SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS

Posted on: 1988-08-22
Description
Melting of the air brake lines can occur where the air lines route under the left hand frame rail near the exhaust pipe.

Consequence
This could result in partial or total loss of servicebrakes without warning, which could lead to a vehicle crash.

Corrective Action
Reroute air line harness away from the exhaust system; replace harness if heat deterioration has occured.

Notes
System: air brake lines.vehicle description: cowl model school buses with air brakes and gasolineengines.