Mack Mc Recalls

13 Transport Canada safety recalls for the Mack Mc, model years 1977–1990. Tap any recall for the hazard, affected models, and corrective action.

Mack Mc — Steering High risk

Nov 17, 1994 Model years: 1990

THE STEERING ARMS ON THESE VEHICLES COULD DEVELOP CRACKS WHICH COULD PROLIFERATE AND EVENTUALLY CAUSE THE ARM TO BREAK WITHOUT WARNING. WHEN MANUFACTURED THESE LEVERS WERE NOT PEEN

Also affects: Mack Mr, Mack R, Mack Rd

Mack Mc — Brakes High risk

Sep 28, 1989 Model years: 1987, 1988, 1989

UNDER CERTAIN OPERATING CONDITIONS AND WITH FRONT WHEELS TURNED EITHER TO THE EXTREME LEFT OR RIGHT POSITION, THE BRAKE HOSES COULD CHAFE AGAINST THE BRAKE CHAMBER AND EVENTUALLY F

Also affects: Mack Cf

Mack Mc — Brakes High risk

Aug 5, 1988 Model years: 1985, 1986

THESE VEHICLES DO NOT COMPLY WITH C.M.V.S.S. 106 - BRAKE HOSES (BURST STRENGTH).

Also affects: Mack Cf, Mack Dm, Mack Dmc, Mack Mh, Mack Mhr

Mack Mc — Suspension High risk

Feb 9, 1987 Model years: 1981, 1982, 1983, 1984, 1985, 1986, 1987

NOTE: 1971 TO 1987 TRUCKS WITH NEWAY AIR RIDE DRIVE AXLE SUSPENSION. THE CHANNEL TYPE CROSSMEMBER INSTALLED WITH THE SUSPENSION CAN BE OVERSTRESSED AND CAN FAIL. THE BROKEN CROSSME

Also affects: Mack R, Mack Mr, Mack Rs, Mack Fm, Mack Mh

Mack Mc — Not Entered High risk

Apr 5, 1984 Model years: 1978, 1979, 1980, 1981, 1982

THE SPRING SEAT, WHICH IS LOCATED BETWEEN THE AXLE HOUSING AND THE REAR SUSPENSION SPRING PACK CAN DEFORM, RESULTING IN REDUCED CLAMPING FORCE IN THE SUSPENSION ASSEMBLY. THIS COUL

Also affects: Mack Cf, Mack F, Mack Fm, Mack Mb, Mack Mr

Mack Mc — Not Entered High risk

Mar 27, 1984 Model years: 1983, 1984

IT IS POSSIBLE THAT IMPROPER STEERING SHAFT CLAMP BOLTS WERE INSTALLED AND TORQUED TO THE WRONG SPECIFICATIONS. BECAUSE OF THE OVERLOADED CLAMPING FORCE APPLIED TO THE BOLT, THE BO

Also affects: Mack Dm, Mack Mh, Mack Mr, Mack Rd, Mack Rl

Mack Mc — Not Entered High risk

Jan 19, 1982 Model years: 1981

THE PITMAN ARM RETAINING BOLT MAY NOT BE TORQUED TO SPECIFICATION. THIS COULD ALLOW THE PITMAN ARM TO LOOSEN AND IF NOT CORRECTED COULD EVENTUALLY CASUE LOSS OF STEERING CONTROL.

Also affects: Mack Mr, Mack R, Mack Rd

Mack Mc — Not Entered High risk

Jul 9, 1981 Model years: 1979, 1980

THE BRAKE CONTROL KNOB COULD FALL OFF DUE TO THE LOCATION OF THE HOLE FOR THE RETAINING PIN BEING OFF THE CENTERLINE OF THE HOLE FOR THE VALVE PLUNGER. WHEN THE RETAINING PIN IS IN

Also affects: Mack F, Mack R, Mack U

Mack Mc — Not Entered High risk

Aug 11, 1980 Model years: 1979

VEHICLES EQUIPPED WITH CERTAIN DETROIT DIESEL ALLISON TRANSMISSIONS MAY HAVE IMPROPERLY MACHINED FORWARD CLUTCH HOUSINGS. THIS CONDITION AFFECTS OIL EVACUATION IN THE CLUTCH HOUSIN

Also affects: Mack Mr, Mack Rd

Mack Mc — Not Entered High risk

May 8, 1980 Model years: 1979, 1980

VEHICLES MAY BE QEUIPPED WITH TRACTOR PARK VALVE CONTROL KNOBS MANUFACTURED BY POLYFLEX CONTROLS THAT MAY BREAK AT THE KNOB RETAINING PIN HOLE LOCATION. THIS CONDITION WOULD RENDER

Also affects: Mack F, Mack R, Mack U

Mack Mc — Not Entered High risk

Jul 12, 1979 Model years: 1978, 1979

VEHICLES EQUIPPED WITH MACK RA23 OR RA24 REAR AXLES MAY CONTAIN REAR SUSPENSION SPRING SEATS THAT COULD DEFORM ON SPRING DEFLECTION RESURING GEAR OUTPUT SHAFT SPLINES AND ULTIMATEL

Also affects: Mack Rs, Mack Rm, Mack F, Mack Mb, Mack R

Mack Mc — Not Entered High risk

Jan 12, 1979 Model years: 1978

THE ROUTING OF THE REINFORCED HEATER DUCT HOSE COULD ALLOW THE HOSE TO CONTACT A TERMINAL POST OF THE ACCESSORY RELAY. THIS CONDITION MAY RESULT IN A SHORT CIRCUIT CAUSING AN ELECT

Also affects: Mack Mr

Mack Mc — Not Entered High risk

Oct 5, 1978 Model years: 1977, 1978

TRUCKS EQUIPPED WITH BOGIE (TANDEM REAR) AXLES THAT ARE EQUIPPED TRUCKS EQUIPPED WITH BOGIE (TANDEM REAR) AXLES THAT ARE EQUIPPED WITH A SINGLE ANTI-WHEEL LOCK CONTROLLER. WHEEL SE

Also affects: Mack Dm, Mack Dmm, Mack F, Mack Mb, Mack Mr

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