Auto Recalls for Consumers

1978 MACK U Recall - Campaign #78V210000

 
Auto Recalls For Consumers

1978 MACK U RECALL - #78V210000

RECALL FOR SERVICE BRAKES, AIR : ANTILOCK : INTERCONNECTING ASSEMBLY(WIRING)

DELAYS OF UP TO ABOUT 2 SECONDS MAY EXIST IN THE BRAKE APPLICATION TIMES TO THE BRAKES ON THE BOGIE AXLES IN THE PRESENCE OF CERTAIN TYPES OF WHEEL SPEED SENSOR SIGNAL DISCONTINUITIES OR DISTORTIONS THAT MAY OCCUR AS A RESULT OF SENSOR WIRE FAILURE. THIS CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".

Information provided by the National Highway Traffic Safety Administration.

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Vehicle 1978 MACK U
Manufacturer MACK TRUCKS, INCORPORATED
Manufactured between 10/1/1977 - 9/1/1978
Recalled on 10/12/1979
Influenced by MACK TRUCKS, INCORPORATED
Owners Notified on 11/7/1978
# Affected 19,370
Recalled for SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING)
Description DELAYS OF UP TO ABOUT 2 SECONDS MAY EXIST IN THE BRAKE APPLICATION TIMES TO THE BRAKES ON THE BOGIE AXLES IN THE PRESENCE OF CERTAIN TYPES OF WHEEL SPEED SENSOR SIGNAL DISCONTINUITIES OR DISTORTIONS THAT MAY OCCUR AS A RESULT OF SENSOR WIRE FAILURE. THIS CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".
Consequences
Corrective action DEALER WILL INSTALL NEW WHEEL SPEED SENSORS THAT INCORPORATE IMPROVED WIRING AND THE PRESENT BOGIE ANTI-WHEEL LOCK SYSTEM WILL BE CHANGED TO AN AXLE-TO-AXLE SYSTEM FOR IMPROVED RELIABILITY.
Notes VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: SERVICE BRAKES; ELECTRICAL WIRING AND CONNECTORS.CONSEQUENCES OF DEFECT: THIS DELAY IN EFFECTIVE BRAKING ACTION COULD LEAD TO ANACCIDENT UNDER CERTAIN TRAFFIC CONDITIONS.
See also 1978 MACK U Recall for SUSPENSION, MULTIPLE AXLE

1978 MACK U Recall for SUSPENSION, MULTIPLE AXLE

1978 MACK U Recall for STEERING, STEERING WHEEL/HANDLE BAR

1978 MACK U Recall for ENGINE AND ENGINE COOLING, ENGINE
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