Auto Recalls for Consumers

1974 MACK HMM Recall - Campaign #78V068000

 
Auto Recalls For Consumers

1974 MACK HMM RECALL - #78V068000

RECALL FOR SERVICE BRAKES, AIR : ANTILOCK : CONTROL UNIT/MODULE

AN AXLE "NO BRAKE" CONDITION COULD RESULT FROM AN EATON CONTROLLER INTERNAL ELECTRICAL MALFUNCTION. THIS CONDITION MAY CAUSE THE ANTI-WHEEL LOCK VALVE SOLENOID TO BE CONTINUOUSLY ENERGIZED AND PREVENT THE BRAKES FROM BEING APPLIED ON ONE OF THE AXLES. AS A RESULT, THE ANTI-WHEEL LOCK WARNING LAMP IS NOT ACTIVATED.

Information provided by the National Highway Traffic Safety Administration.

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Vehicle 1974 MACK HMM
Manufacturer MACK TRUCKS, INCORPORATED
Manufactured between 10/1/1974 - 3/1/1976
Recalled on 10/12/1979
Influenced by OFFICE OF DEFECTS INVESTIGATION
Owners Notified on 9/1/1978
# Affected 9,700
Recalled for SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
Description AN AXLE "NO BRAKE" CONDITION COULD RESULT FROM AN EATON CONTROLLER INTERNAL ELECTRICAL MALFUNCTION. THIS CONDITION MAY CAUSE THE ANTI-WHEEL LOCK VALVE SOLENOID TO BE CONTINUOUSLY ENERGIZED AND PREVENT THE BRAKES FROM BEING APPLIED ON ONE OF THE AXLES. AS A RESULT, THE ANTI-WHEEL LOCK WARNING LAMP IS NOT ACTIVATED.
Consequences
Corrective action THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE ANTI-WHEEL LOCK CONTROLLER WITHOUT CHARGE TO OWNER.
Notes VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH EATON 21 ANTI-LOCK CONTROLLERS.SYSTEM: SERVICE BRAKES; ANTI-WHEEL LOCK SOLENOID.CONSEQUENCES OF DEFECT: LOSS OF BRAKES ON ANY ONE AXLE WILL RESULT IN EXTENDEDVEHICLE STOPPING DISTANCES, WHICH COULD LEAD TO A VEHICLE ACCIDENT.
See also 1974 MACK HMM Recall for ENGINE AND ENGINE COOLING, COOLING SYSTEM, FAN
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