1988 Mack DM SERIES recalls

NHTSA lists 5 model-level recall records for this year, make, and model. These records may apply to your vehicle; confirm your specific VIN with NHTSA or the manufacturer.

Recall records

Steering: Linkages07/27/198888V125000

SOME OF THE NUTS/BOLTS USED TO FASTEN THE STEERING PITMAN ARM MAY LOOSEN.

Consequence

THIS WOULD ALLOW THE PITMAN ARM TO COME OFF THE STEERINGGEAR SECTOR SHAFT AND RESULT IN IMMEDIATE LOSS OF STEERING CONTROL AND A VEHICLECRASH COULD OCCUR.

Remedy

RETORQUE NUTS/BOLTS WHERE NECESSARY.

SYSTEM: STEERING PITMAN ARM.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS.

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Power train: Driveline: Center support bearing05/23/198888V085000

CLAMP PLATES USED BETWEEN THE DRIVE SHAFT AND CARRIER YOKES MAY CRACK AND COULD BREAK DUE TO IMPROPER HEAT TREATMENT.

Consequence

IF CLAMP PLATE BREAKS, YOKE WOULD FLY OFF AT DETACHEDPOINT AND COULD INJURY ANYONE STRUCK BY FLYING FRAGMENTS. ALSO, THE DETACHEDINNER SHAFT COULD INTERFERE WITH THE BRAKE SYSTEM AIR SUPPLY HOSES AND TRACTORTIRES, WHICH COULD RESULT IN LOSS OF TRUCK CONTROL AND AN ACCIDENT.

Remedy

INSTALL NEW CLAMPING PLATES AND CAPSCREWS IN ALL LOCATIONS AS NEEDED.

SYSTEM: DRIVE SHAFT YOKE CLAMP PLATES.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS.

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Steering: Steering wheel/handle bar05/22/198989V086000

STEERING WHEEL RETAINING NUTS MAY HAVE BEEN IMPROPERLY INSTALLED AND/OR TORQUED.

Remedy

RENEW AND RETORQUE STEERING WHEEL RETAINING NUTS.

SYSTEM: STEERING WHEEL RETAINING NUTS.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS. CONSEQUENCE OF DEFECT: THIS COULD CAUSE STEERING WHEEL DISENGAGEMENT FROM THE STEERING COLUMN WITH LOSS OF STEERING CONTROL WHICH COULD RESULT IN ANACCIDENT.

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Steering: Hydraulic power assist: Hose, piping, and connections03/03/198989V032000

AN INCORRECT HIGH PRESSURE POWER STEERING HOSE MAY HAVE BEEN INSTALLED.

Consequence

UNDER CERTAIN CONDITIONS, HOSE COULD FAIL RESULTING INLOSS OF POWER STEERING ASSIST AND POSSIBLY AN ACCIDENT.

Remedy

REPLACE INCORRECT POWER STEERING HOSES.

SYSTEM: POWER STEERING HOSE.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH STRATOFLEX HIGH PRESSUREPOWER STEERING HOSE.

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Suspension: Rear: Springs03/03/198989V033000

DOWELS MAY HAVE BEEN OMITTED DURING SPRING CAP INSTALLATION; THIS WOULD PUT SHEAR LOAD ON THE FOUR (4) SPRING CAP BOLTS.

Consequence

THIS COULD RESULT IN LOOSENING AND FAILURE OF THE BOLTSWITH POSSIBLE LOSS OF CONTROL AND ACCIDENT POTENTIAL.

Remedy

INSTALL THE MISSING DOWELS TO PREVENT MOVEMENT BETWEEN THE SPRING CAP AND AXLE HOUSING.

SYSTEM: SPRING CAP TO AXLE HOUSING CONNECTION DOWEL.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS.

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