1990 GMC B6 Recalls (2)
- Campaign:
- 91V032000 on 02/27/1991
- Component:
- Parking brake:driveline
- Manufactured:
- 07/31/1985 - 10/31/1989
- Affected:
- 14,044
- Defect:
- The parking brake drum attachment bolts may loosen and cause a driveline lockup condition when the bus is stopped or almost stopped.
- Consequence:
- Driveline lock-up could cause loss of vehicle controlwithout prior notice, and result in a vehicle crash.
- Correction:
- Remove all of the parking brake drum bolts, apply a retaining compound to new bolts, and torque the new bolts to specification.
- Notes:
- System: transmission mounted parking brakes drum.vehicle description: school buses equipped with hydraulic brakes (je3) andallison at545 automatic transmissions (mf1).
- Campaign:
- 92V187000 on 12/29/1992
- Component:
- Vehicle speed control
- Affected:
- 6,656
- Defect:
- A manufacturing condition in the throttle body injector (tbi) unit might occur to allow the throttle cam lever to disengage from the throttle drive shaft.
- Consequence:
- If the throttle cam lever disengages from the throttledrive shaft, the engine could go to wide open throttle without prior warning.this loss of vehicle accelerator control could result in a vehicle crash.
- Correction:
- Replace the throttle drive cover assembly.
- Notes:
- System: fuel system; throttle linkage.vehicle description: school buses with 6.0 liter engines.
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