ON CERTAIN SCHOOL AND TRANSIT BUSES THE STUDS USED TO SECURE THE POWER STEERING PUMP TO THE ENGINE BLOCK CAN FAIL, RESULTING IN ENGINE OIL LEAKAGE AND COMPLETE LOSS OF POWER STEERING. THE POWER STEERING PUMP IS DESIGNED TO PROVIDE POWER ASSIST TO BOTH THE STEERING SYSTEM AND THE HYDRAULIC BRAKING SYSTEM. SHOULD STUD FAILURE CAUSE THE PUMP TO BECOME DISENGAGED FROM ITS DRIVE GEARS, A REDUCTION OF THE FLUID FLOW RATE TO THE BRAKE SYSTEM COULD OCCUR AND POSSIBLY CAUSE AN EXTENDED STOPPING DISTANCE AS WELL AS INCREASED STEERING WHEEL EFFORTS.
Consequence & remedy
Consequence: SUDDEN LOSS OF POWER STEERING WILL IMPAIR THE VEHICLE OPERATOR, POSSIBLE RESULTING IN A VEHICLE CRASH.
Remedy: INTERNATIONAL WILL NOTIFY ITS CUSTOMERS AND ALL VEHICLES WILL BE INSPECTED AND ANY SUSPECT STUDS WILL BE REPLACED. OWNER NOTIFICATION BEGAN SEPTEMBER 24,2004. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT INTERNATIONAL AT 1-800-448-7825.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1
PE04015 · Power Steering Stud Failure
Opened Feb 18, 2004 · Closed Jun 4, 2004
Status: closed (inferred from source dates) · Steering:hydraulic Power Assist:pump
THIS INVESTIGATION WAS OPENED BASED ON A REPORT FROM A VIRGINIA SCHOOL BUS FLEET.THE FLEET REPORTED THAT ONE OF THEIR DRIVERS ALLEGED THAT SHE ?COULD NOT STEER THE BUS.?AN INSPECTION OF THE BUS REVEALED THAT THE POWER STEERING PUMP HAD DETACHED FROM THE ENGINE.THE FLEET THEN INSPECTED OTHER BUSES ON THE LOT AND FOUND FOUR BUSES WHERE THE BOLTS WERE EITHER MISSING, OR THE STUD HAD BROKEN.SUBSEQUENT STUD TESTING BY INTERNATIONAL REVEALED THE HARDNESS OF THE RETURNED STUDS WAS OUT OF SPECIFICATION.INTERNATIONAL HAS AGREED TO INITATE A SAEFTY RECALL TO INSPECT AND REPLACE THE STUDS ON THE AFFECTED VEHILCES. A COPY OF THE RECALL IS ATTACHED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
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