United States 88V124000
Mack Trucks, Inc.
The problem
POWER STEERING PUMPS MAY HAVE A RIDGE INSIDE THE ALUMINUM HOUSING WHICH COULD DETACH ITSELF FROM THE HOUSING AND BECOME WEDGED INSIDE THE RELIEF VALVE, KEEPING IT OPEN.
Risk
THIS COULD RESULT IN SUDDEN LOSS OF ASSISTANCE TO THESTEERING WITH THE POTENTIAL FOR AN ACCIDENT.
What owners should do
REPLACE POWER STEERING PUMP.
Units 294