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Mack R (1978) – 79V018000

Vehicle recall defect – The Steel Brackets On The Suspension Beam Were Found To Be Deficient Due To Excessive Shrinkage And Low Mechanical Properties. Failure Of One Or Both Of These Brackets Could Cause A Separation Of The Axle Housing From The Suspension.


Mack R (1978) – 79V017000

Vehicle recall defect – A Casting Deficiency Exists In The Lower SeCTIon Of The Caps Resulting In A ReduCTIon In The Thickness Of The Material. Failure Of A Cap Can Allow The End Of The Rear Spring To Detach From The Axle Housing.


Mack R (1978) – 78V210000

Vehicle recall defect – 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”.


Mack R (1978) – 78V031000

Vehicle recall defect – The Tee Bracket, Which Is Mounted On The Front Axle Of The Bogie, May Fail Due To Vibration Brought On By Road Surface Irregularities. Bracket Failure Would Leave The Tee Bracket Unsupported And Cause Broken Hose Connector Fittings. This Would Result In Automatic Application Of The Spring Emergency Brakes.


Mack R (1989) – 90V052000

Vehicle recall defect – Interference Between Steering Gear Sector Shaft And The Frame Rail Through Hole Can Cause Sector Shaft Wear And Can Weaken Shaft Cause It To Break.


Mack R (1977) – 79V133000

Vehicle recall defect – 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 Bearing Housing, Engine Lubricating Oil May Be Allowed To Escape Under Pressure, ContActing The Engine Exhaust Manifold SeCTIons Or Turbocharger Turbine Housing.


Mack R (1992) – 94V032000

Vehicle recall defect – 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.


Mack R (1991) – 94V032000

Vehicle recall defect – 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.


Mack R (1990) – 94V192000

Vehicle recall defect – The Steering Arm Can Develop Cracks Causing The Lever To Break Without Warning.


Mack R (1990) – 94V032000

Vehicle recall defect – 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.