Recall 91V-080: 1988–1989 Mack CF
MACK TRUCKS, INCORPORATED recall for steering, reported to NHTSA on May 23, 1991, covering about 35 vehicles.
The problem
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 .
The 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.
The fix
Replace incorrectly built boost cylinders.
Notes
System: steering power assist, hydroboost assembly.vehicle description: cf aerialscope model.
Recall details
| Manufacturer | MACK TRUCKS, INCORPORATED |
|---|---|
| Component | Steering › Hydraulic Power Assist System |
| Recall started by | NHTSA (Office of Defects Investigation) |
| NHTSA campaign number | 91V080000 |
Vehicles in this recall
| Vehicle | Model years | |
|---|---|---|
| Mack CF | 1988, 1989 | All years |
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 91V-080?
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 .
How is recall 91V-080 fixed?
Replace incorrectly built boost cylinders.
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.