Steering: gear box (other than rack and pinion)Recall 91V-126 · Ford vehicles
FORD MOTOR COMPANY recall 91V-126 covers 3,000 Ford vehicles for a steering: gear box (other than rack and pinion) problem, reported to NHTSA on July 16, 1991.
Source: NHTSA recall 91V126000 and manufacturer quarterly reports. Started by an NHTSA defect investigation.
The problem
BECAUSE OF A MACHINING INCONSISTENCY, THERE IS A HIGH PISTON-TO-BALL CONTACT ANGLE IN THE STEERING GEAR WORM DRIVE. THIS CONTACT CAUSES THE BALLS TO TRY TO ROTATE ON TWO DIFFERENT ROLLING RADII AT TWO DIFFERENT SPEEDS, CAUSING THE BALL TO DAMAGE THE CONTACT SURFACES OF THE PISTON AND SPINDLE DURING STATIC OR LOW SPEED MANEUVERS INVOKING FULL OR NEAR FULL TURNS.
The risk
STEERING ABILITY DETERIORATES AND EVENTUALLY STEERINGLOCKUP OCCURS DURING THESE LOW SPEED MANEUVERS RESULTING IN LOSS OF STEERINGCONTROL AND AN INCREASED RISK OF VEHICLE ACCIDENT.
The fix
REPLACE BENDIX C300N STEERING GEARS WITH NEW GEARS.
SYSTEM: STEERING, GEAR BOX.VEHICLE DESCRIPTION: SCHOOL BUS CHASSIS WITH BENDIX C300N STEERING GEARS.NOTE: FOR BUS APPLICABILITY CALL FORD'S TOLL-FREE NUMBER (1-800-392-3673) ANDPROVIDE VIN.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
The investigation behind this recall
- STEERING LOCKUPNHTSA