RecallMyCar

Mack Mc Recalls & Complaints by Model Year

NHTSA lists 5 safety recalls and 0 owner complaints across 9 model years of the Mack Mc (1977–1992).

5
safety recalls, all years
0
owner complaints, all years
1978
year with most recalls

Pick your Mack Mc model year

Model yearRecallsComplaints
1992 Mack Mc10
1991 Mack Mc10
1990 Mack Mc20
1989 Mack Mc10
1988 Mack Mc10
1987 Mack Mc10
1979 Mack Mc20
1978 Mack Mc20
1977 Mack Mc10

All Mack Mc recalls (5)

Every NHTSA safety campaign that lists a Mack Mc, most recent first, with the model years each one covers.

  1. Linkages (steering)

    NHTSA 94V192000 Reported 321 vehicles potentially affected MACK TRUCKS, INCORPORATED

    The steering arm can develop cracks causing the lever to break without warning.

    Remedy: Dealers will replace the steering levers with an improved steering lever with increased fatigue strength.

    Model years: 1990

  2. Vehicle speed control

    NHTSA 94V032000 Reported 39,777 vehicles potentially affected MACK TRUCKS, INCORPORATED

    Fuel injection system reconfiguration to comply with engine emission standards cause higher engine vibration levels which lead to early wear and complete failure of the secondary throttle return mechanism.

    Remedy: A new production secondary throttle return system configuration will be installed.

    Model years: 1987, 1988, 1989, 1990, 1991, 1992

  3. Leaf spring assembly (suspension)

    NHTSA 79V171000 Reported 1,706 vehicles potentially affected MACK TRUCKS, INCORPORATED

    The spring seat plate, located between the axle housing and the suspension springs, may deform due to spring bending. As a result, the clamping force in the assembly may be reduced. Loss of clamping force could cause spring failure and the axle will dislocate. Also, the tire could come into contact with the spring.

    Remedy: The dealer will replace the existing spring seat with a newly fabricated seat which is welded to the housing. An improved spring clamping plate and new springs will also be installed without charge.

    Model years: 1979

  4. Engine (engine and engine cooling)

    NHTSA 79V133000 Reported 23,000 vehicles potentially affected MACK TRUCKS, INCORPORATED

    In the event of turbocharger compressor wheel failure, one or more of the four capscrews that hold the turbocharger together may be struck by parts of the compressor wheel, resulting in the capscrews being damaged. If these capscrews are damaged to the point that they allow the compressor back plate to dislocate from the turbocharger…

    Remedy: Dealer will install a shield for the heads of the four capscrews, along with stronger sae 8 grade 8 capscrews, if necessary, at no cost to owner.

    Model years: 1977, 1978, 1979

  5. Heater core (visibility)

    NHTSA 79V014000 Reported 358 vehicles potentially affected MACK TRUCKS, INCORPORATED

    A deficiency in the routing of the heater duct hose could allow the hose to rest against a terminal post of the accessory relay. Vibration will eventually cause the terminal post to penetrate the hose fabric and short circuit the wire reinforcement and overload the circuit.

    Remedy: Dealer will replace the portion of the existing hose that is closest to the accessory relay with an all-rubber hose.

    Model years: 1978

Other Mack models

Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.