Known Recalls

Recall campaign · NHTSA 91V080000

Steering: hydraulic power assist system

MACK TRUCKS, INCORPORATED filed this campaign with NHTSA on 1991-05-23.

Recall campaignNHTSA 91V080000

Steering: hydraulic power assist system

Component
Steering: hydraulic power assist system
Manufacturer
MACK TRUCKS, INCORPORATED
Vehicles affected
35
Reported to NHTSA
1991-05-23
Owners notified
1991-05-02

Defect description

INCORRECT MANUFACTURE OF THE HYDROBOOST CYLINDER ALLOWS THE BALL SOCKET CLAMP TO CONTACT RIGHT SIDE STEERING LEVER ON AN EXTREME LEFT TURN AND CAUSE FLEXING OF THE CYLINDER ROD .

Safety risk

THIS FLEXING CAN CAUSE SEAL FAILURE OR CYLINDER FAILUREOF THE HYDROBOOST UNIT AND RESULT IN LOSS OF STEERING CONTROL AND RESULT IN AVEHICLE ACCIDENT.

Manufacturer remedy

REPLACE INCORRECTLY BUILT BOOST CYLINDERS.

Notes

SYSTEM: STEERING POWER ASSIST, HYDROBOOST ASSEMBLY.VEHICLE DESCRIPTION: CF AERIALSCOPE MODEL.

Scope of coverage

2 model years across 1 models.

ModelYears on record
MACK CF1989 1988

Safety recall repairs are provided free of charge by franchised dealers, regardless of vehicle age or mileage. This page displays aggregated data for the model year. To check recall status for a specific vehicle, search its VIN at nhtsa.gov.