Recall 85V113000: Mack trucks, incorporated

Report received

Sep 17, 1985

Manufacturer

Mack trucks, incorporated

Potentially affected

5,020vehicles

Model years

—

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

The dual double check valve may not release the proper air volume to the brake system, causing a slight timing delay between the tractor and the trailer brake system. Consequences of defect: if the brakes are suddenly applied, the trailer could jackknife without warning to the operator, which could result in a vehicle crash.

Remedy

Install two new sleeves in the dual double check valve which will increase air flow.