1999 Mack DM Problems: 0 Complaints, 2 Recalls

The worst 1999 Mack DM 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.

Vehicle speed control: accelerator pedalReported October 4, 2000 · 45,866 vehicles affected

What is wrong: Vehicle description: class 8 trucks equipped with felsted electronic accelerator pedals. The return springs can break on the accelerator pedals that are equipped with stainless steel or electroplated wire return springs.
Risk: This condition could cause the pedal to go to full throttle if both return springs break, increasing the risk of a crash.
Remedy: Replacement accelerator pedals equipped with return springs manufactured of music wire with one additional coil on each spring and with an organic coating, eliminating electroplating will be installed.

Recall number 00V230003 · Recall details

Service brakes, air: antilockReported September 13, 2000 · 651 vehicles affected

What is wrong: Vehicle description: heavy duty trucks built with bendix air ABS with an ec-17 1030r electronic control unit (ecu), there have been reports of unwanted ABS activation at low speeds caused by 1) chafed ABS wheel speed sensor wires on rotating parts or 2) a damaged component at the wheel end that generates a certain type of erratic sensor signal.
Risk: This condition could cause the ABS ecu to exhaust the air at the air brake modulators for one or more of the wheels. This could result in extended braking distances and a possible crash.
Remedy: Dealers will replace the ABS ecu.

Recall number 00V232009 · 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 1999 Mack DM before you buy

Is the 1999 Mack DM reliable?

Owners have filed 0 complaints about the 1999 Mack DM.

What is the most common problem with the 1999 Mack DM?

There are not enough complaints to tell.

How many recalls does the 1999 Mack DM have?

2 recalls, covering vehicle speed control 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.