Hydraulic power assist: pumpRecall 92V-049 · 1989–1991 Pierce Fire Truck
PIERCE MANUFACTURING,INC. recall 92V-049 covers 1,225 1989–1991 Pierce Fire Truck for a hydraulic power assist: pump problem, reported to NHTSA on April 15, 1992.
Source: NHTSA recall 92V049000 and manufacturer quarterly reports. Started by an NHTSA defect investigation.
The problem
THE KEY WHICH SECURES THE POWER STEERING PUMP MATING GEAR TO THE PUMP DRIVE SHAFT BREAKS AND FALLS OUT, ALLOWING THE MATING GEAR TO SPIN ON THE SHAFT OF THE POWER STEERING PUMP, RESULTING IN A LOSS OF POWER STEERING.
The risk
THE LOSS OF POWER STEERING WITHOUT PRIOR WARNING CAUSESAN INCREASED EFFORT TO STEER THE VEHICLE, AND IF THE VEHICLE IS IN MOTION WHENPOWER STEERING LOSS OCCURS, COULD RESULT IN A VEHICLE ACCIDENT.
The fix
INSPECT THE GEAR, KEY, KEYWAY, AND PUMP SHAFT AND REPLACE ANY DAMAGED OR WORN PARTS. INSTALL NEW KEY AND SHAFT COLLAR WITH SET SCREW AND TIGHTEN TO 10 FOOT POUNDS.
SYSTEM: POWER STEERING.VEHICLE DESCRIPTION: FIRE TRUCKS EQUIPPED WITH DETROIT DIESEL ENGINES AND AVICKERS V20 POWER STEERING PUMP.NOTE: RETROFIT KITS WILL BE SHIPPED TO DEALERS BEGINNING MAY 15, 1992. UNTILRETROFIT KITS HAVE BEEN INSTALLED, CUSTOMERS ARE ADVISED TO INSPECT UNITS TOENSURE KEY IS STILL INTACT.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from August 1, 1989 to May 1, 1991. Not every vehicle in these model years is included; check by VIN.
The investigation behind this recall
- SQNHTSA