2001 Mack DMM Problems: 0 Complaints, 2 Recalls

The worst 2001 Mack DMM problems

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

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

Steering: hydraulic power assist: pumpReported December 21, 2001 · 7,500 vehicles affected

What is wrong: Vehicle description: trucks equipped with e-tech engines. A condition exists on the auxiliary drive shaft of the e-tech engine that causes the loss of power steering on vehicles where the power steering pump is mounted off the front of the engine.
Risk: This could result in the loss of power steering.
Remedy: Dealers will inspect the vehicles and replace the nut that holds the gear to the auxiliary drive shaft. Owner notification began march 22, 2002. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1‑610‑709‑3011.

Recall number 01V389000 · Recall details

Service brakes, air: controls, pedals and linkagesReported August 1, 2001 · 8,268 vehicles affected

What is wrong: Vehicle description: heavy duty trucks equipped with certain meritor-wabco brake system two and four port relay valves. The valve may stick open when a high-pressure application is released.
Risk: When the valve sticks open, it can result in a total loss of air from either the service or the park brake system. The driver may lose braking ability under a service application, possibly resulting in a vehicle crash.
Remedy: Dealers will replace these valves. Owner notification began november 16, 2001. Owners who take their vehicles to an authorized dealer on an agreed upon service date and do not receive the free remedy within a reasonable time should contact mack at 1‑610‑709‑3011 or meritor wabco at 800‑535‑5560.

Recall number 01V189004 · Recall details

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

Used buying checklistWhat to check on a 2001 Mack DMM before you buy

Is the 2001 Mack DMM reliable?

Owners have filed 0 complaints about the 2001 Mack DMM.

What is the most common problem with the 2001 Mack DMM?

There are not enough complaints to tell.

How many recalls does the 2001 Mack DMM have?

2 recalls, covering steering and service brakes, air.

See the problems and recalls for an exact car

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.