Recall 77E021000: Service Brakes, Air, Antilock, Wheel Speed Sensor

NHTSA recall 77E021000 · announced September 21, 1977 · Wagner Electric · 19,800 units affected

The problem

THE INVOLVED ANTI-LOCK WHEEL SPEED SENSORS MAY CONTAIN IMPROPERLY MAGNETIZED STATOR ASSEMBLIES. THIS CONDITION COULD RESULT IN MALFUNCTION OF THE BRAKE ANTI-LOCK SYSTEM LEADING TO AN INCREASE IN VEHICLE STOPPING DISTANCES AND THE POSSIBILITY OF WHEEL LOCK-UP DURING BRAKING AT SPEEDS ABOVE 10 M.P.H., DUE TO INABILITY OF THE ANTI-LOCK SYSTEM TO PROPERLY CONTROL BRAKING PRESSURE.

What to do

FIELD INSPECTIONS WILL BE CONDUCTED AND SUSPECT SENSOR STATORS WILL BE REPLACED WITH PROPERLY MAGNETIZED UNITS.

Official NHTSA recall notice →

Notes

VEHICLE CATEGORY: TRAILERS.SYSTEM: SERVICE BRAKES; ANTI-LOCK WHEEL SPEED SENSORS, PART NO. AD-80838.CONSEQUENCES OF DEFECT: THIS CONDITION COULD CAUSE LOSS OF VEHICLE CONTROL ANDAN ACCIDENT.

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.