Parking brake: driveline: air
- Component
- Parking brake: driveline: air
- Manufacturer
- VOLVO GM HEAVY TRUCK CORP
- Vehicles affected
- 31
- Reported to NHTSA
- 1991-02-20
- Owners notified
- 1991-02-19
Defect description
IMPROPER PARK BRAKE CONTROL VALVES MAY HAVE BEEN INSTALLED; THE SUSPECT VEHICLE HAVE DISK BRAKES WITH PARK BRAKE VALVE DESIGNED FOR DRUM BRAKES.
Safety risk
TRUCKS LEFT WITH PARK BRAKES ENGAGED COULD BEGIN TO ROLLAFTER THE DISK BRAKES COOLED, AND COULD RESULT IN A VEHICLE CRASH WITHOUTWARNING.
Manufacturer remedy
REPLACE CONTROL VALVE WITH THE CORRECT DISK BRAKE VALVE.