1986 GMC B6P042 Recalls (3)
- Campaign:
- 86V086000 on 07/10/1986
- Component:
- Service brakes, hydraulic:fluid
- Manufactured:
- 09/30/1982 - 12/31/1985
- Affected:
- 4,299
- Defect:
- 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 of defect: brackets can break, resulting in loss of braking ability at the front wheel, and possibly restrict steering, which could lead to a vehicle crash without prior warning.
- Correction:
- As necessary, replace front brake chamber mounting brackets and install a front brake limiting valve.
- Notes:
- System: brakes. vehicle description: school buses equipped with a 7500 lb. front axle and without a front brake limiting valve.
- Campaign:
- 87V121000 on 08/06/1987
- Component:
- Service brakes, air:drum:chamber
- Manufactured:
- 09/30/1982 - 05/31/1987
- Affected:
- 7,870
- Defect:
- 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.
- Correction:
- 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.
- Campaign:
- 89V071000 on 06/04/1989
- Component:
- Fuel system, gasoline:storage:tank assembly:filler pipe and cap
- Manufactured:
- 08/31/1985 - 03/31/1989
- Affected:
- 21,558
- Defect:
- 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.
- Correction:
- 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.
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