NHTSA recall campaign
89V178000
ManufacturerMACK TRUCKS, INCORPORATEDReported1989-10-23Affected3,652 vehicles
What was wrong
Defect
INTERNAL COMPONENTS OF THE E-12 DUAL CIRCUIT AIR BRAKE VALVES MAY BE MISASSEMBLED SO THAT ONE OF THE TAPERED SNAP RINGS IS UPSIDE DOWN.
Risk
THE SNAP RING CAN COME OUT CAUSING THE VALVE TOMALFUNCTION AND APPLY THE TRUCK'S BRAKE SYSTEM WITHOUT WARNING; THIS COULDRESULT IN LOSS OF CONTROL AND A CRASH.
Manufacturer remedy
REPLACE MISASSEMBLED VALVES.
To check whether your specific VIN is covered and to find a participating dealer, look this campaign up on NHTSA.gov →
Affected vehicles
1 entryMack
- CH1989