Service brakes, air: supply
- Component
- Service brakes, air: supply
- Manufacturer
- PACCAR, INCORPORATED
- Vehicles affected
- 1,000
- Reported to NHTSA
- 1982-07-26
- Owners notified
- 1982-09-25
Defect description
THE INVOLVED TRUCKS MAY HAVE BEEN ASSEMBLED WITHOUT THE INSTALLATION OF A SINGLE CHECK VALVE. THIS FAILS TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS". IN THE EVENT OF A SINGLE FAILURE IN THE REAR AIR SYSTEM, THE LACK OF A CHECK VALVE WOULD ALLOW SIMULTANEOUS LOSS OF AIR FROM BOTH FRONT AND REAR BRAKING SYSTEMS.
Manufacturer remedy
DEALER WILL INSTALL A SINGLE CHECK VALVE, IF NECESSARY, WITHOUT CHARGE TO OWNER.