Recall 85V-159: 1984–1985 Mack MR600P, 1984–1985 Mack MS250P
MACK TRUCKS, INCORPORATED recall for parking brake, reported to NHTSA on Nov 26, 1985, covering about 3,308 vehicles.
The problem
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
Install a redesigned valve support bracket.
Notes
System: parking brakes air lines, quick release valve bracket.vehicle description: mid-liner trucks.
Recall details
| Manufacturer | MACK TRUCKS, INCORPORATED |
|---|---|
| Component | Parking Brake › Driveline › Hydraulic › Hoses, Lines/Piping, and Fittings |
| Recall started by | the manufacturer |
| NHTSA campaign number | 85V159000 |
Vehicles in this recall
Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.
Frequently asked questions
What is recall 85V-159?
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.
How is recall 85V-159 fixed?
Install a redesigned valve support bracket.
Is the recall repair free?
Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.