1993 Mack CH Problems: 0 Complaints, 4 Recalls

The worst 1993 Mack CH problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

Recalls 4

Trailer hitches: fifth wheel assemblyReported May 11, 2000 · 90 vehicles affected

What is wrong: Vehicle description: heavy duty class 8 trucks equipped with fontaine fifth wheel assemblies. The fifth wheel mounting plates can crack.
Risk: Under the trailer loading, the mounting plate could eventually fail due to fatigue.
Remedy: Dealers will inspect and replace the mounting plates that are cracked.

Recall number 00V019003 · Recall details

Power train: driveline: center support bearingReported November 1, 1994 · 17,720 vehicles affected

What is wrong: The driveshaft center bearing support bracket can crack and break.
Risk: If this happens, the driveshaft will wobble and can separate. Separation can result in damage to other components of the vehicle or loose fragments can fall onto the roadway presenting a hazard to other drivers.
Remedy: Dealers will replace the center bearing hanger bracket.

Recall number 94V216000 · Recall details

Engine and engine cooling: cooling system: fanReported August 20, 1993 · 11,000 vehicles affected

What is wrong: The engine cooling fan blades may break due to inadequate blade strength around the rivets that attach the blades to the fan spider.
Risk: If complete fracture of the fan blade occurs, it couldbe propelled outside the fan shroud, injuring person(s) in the vicinity ofthe truck.
Remedy: An improved fan will be installed on these vehicles.

Recall number 93V137000 · Recall details

Trailer hitchesReported February 16, 1993 · 4,924 vehicles affected

What is wrong: The carrier yoke bolts were manufactured with worn rolling thread dies, causing stress concentrations which caused cracks during the quenching process.
Risk: This condition can cause bolt failure and allow thedriveline to separate from the carrier assembly.
Remedy: Replace the carrier yoke bolts.

Recall number 93V024000 · Recall details

See all 4 recalls for the 1993 Mack CH

Technical service bulletins for the 1993 Mack CH 23

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

Jun 28, 2022 Service bulletinUS10 Emission Engines
Jun 22, 2022 Service bulletinAutomated Manual Transmission ( AMT ) I-Shift / mDRIVE
Jun 21, 2022 Service bulletin(Back Office)
Jun 21, 2022 Service bulletinProgramming Failure
May 26, 2022 Service bulletinNOx Sensor Troubleshooting Guide
May 26, 2022 Service bulletinUse for new vehicles (US21+OBD22
May 26, 2022 Service bulletinSelective Catalytic Reduction (SCR) Muffler Troubleshooting Guide
May 26, 2022 Service bulletinDEF Pump Troubleshooting Guide
May 26, 2022 Service bulletinTemperature Sensor Troubleshooting Guide
May 25, 2022 Service bulletinMack Chassis

See all 23 bulletins for the 1993 Mack CH

Used buying checklistWhat to check on a 1993 Mack CH before you buy

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1992 1994 1996 1997 2002

Questions about the 1993 Mack CH

Is the 1993 Mack CH reliable?

Owners have filed 0 complaints about the 1993 Mack CH.

What is the most common problem with the 1993 Mack CH?

There are not enough complaints to tell.

How many recalls does the 1993 Mack CH have?

4 recalls, covering trailer hitches, power train and engine and engine cooling.

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1993 Mack CH problems