Recall 03V253000: 2003 Mack MR and 5 other models

Report received

Jul 17, 2003

Manufacturer

Mack trucks, incorporated

Potentially affected

1,232vehicles

Model years

2003

Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.

What NHTSA recorded

Certain heavy duty vehicles fail to comply with the requirements of federal motor vehicle safety standard no. 121, "air brake systems." improper seating of the check valve retainer in the brass fitting housing has occurred. It is possible for the air brake system pressure to push the check valve internal parts into the primary system reservoir and a vehicle operator would not know that this has happened.

Possible consequence

In this condition, the vehicle would not meet the emergency requirements of the standard.

Remedy

Dealers will replace the check valve. Owner notification began november 26, 2003. Owners should contact mack at 1-610-709-3337.

Affected model years

Pages for each model year show complaints, parts, mileage and other recalls.

• 2003 Mack CH0 complaints
• 2003 Mack CL0 complaints
• 2003 Mack CV2 complaints
• 2003 Mack CX0 complaints
• 2003 Mack Le0 complaints
• 2003 Mack MR0 complaints