Mack MR600P, MS250P (1984-1985): Parking brake
Recall 85V159000 · Nov 26, 1985 · Mack Trucks, Incorporated
3,308
vehicles affected
3,308
vehicles affected
Facts
- Recall number
- 85V159000
- Date
- Nov 26, 1985
- Maker
- Mack Trucks, Incorporated
- Units affected
- 3,308
- Kind
- Vehicles
- Component
- Parking brake > Driveline > Hydraulic > Hoses, lines/piping, and fittings
- Model years
- 1984-1985
- Started by
- The maker
- Hazard
- Crash risk
What is wrong
THE QUICK RELEASE VALVE SUPPORT BRACKET MOUNTED ON THE AXLE MAY CRACK. THIS CAUSES FATIGUE FAILURE OF THE STEEL AIR LINES LEADING TO THE REAR PARKING BRAKES AND CHASSIS SERVICE BRAKES RESULTING IN SUDDEN LOSS OF AIR PRESSURE. CONSEQUENCE OF DEFECT: THIS SUDDEN LOSS OF AIR TO THE BRAKE CHAMBERS WILL RESULT IN AUTOMATIC ACTUATION OF REAR PARKING BRAKE CAUSING SUDDEN REAR WHEEL LOCKUP WHICH MAY CONTRIBUTE TO AN ACCIDENT.
The fix
Recall repairs are free of charge.
INSTALL A REDESIGNED VALVE SUPPORT BRACKET.
Vehicles covered
2 models, 4 model years in all
Related pages
Questions and answers
Which vehicles are in recall 85V159000?
2 models: Mack MR600P (1984-1985), Mack MS250P (1984-1985), about 3,308 vehicles in all.
What is the fix for recall 85V159000?
INSTALL A REDESIGNED VALVE SUPPORT BRACKET.
A recall means the maker found a safety problem and offers a free fix; it does not mean every unit has the problem. Units affected are as reported by the company. Popular models sell more and so have more recalls and complaints. Official public data; texts are shortened. A dealer can tell whether a single vehicle still needs the repair.