- The problem
- These wheels are composed of 2 pieces - a disc and a rim which are normally welded together. These wheels lack the specified fillet welds.
- The risk
- If wheel separation occurs while the vehicle is inmotion, both steering and braking could be affected resulting in a vehiclecrash.
- The fix
- Dealers will inspect the manufacturing codes stamped on each wheel and if a wheel falls within the specified date code range, the dealer will replace that wheel.
Vehicle safety record
1993 Mack DM Problems, complaints & recalls
No owner complaints about the 1993 Mack DM have been filed with NHTSA. It is covered by 3 recalls, the latest in June 1995 for the wheels.
NHTSA data checked
DMore problems than a typical DM year, for its age
- Complaints
- 0
- Recalls
- 3
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
1993 Mack DM recalls 3
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
- The problem
- Air system blockage in the air dryer occurs degrading the moisture removing capabilities of the dryer when the vehicle is operated in a cold environment and moisture accumulates and freezes in the air dryer or in the line between the dryer and the air system reservoir. The air dryer can become overpressurized causing the air dryer cartridge to separate from the mounting base.
- The risk
- If the air dryer separates from the base, the cartridge can separate sufficiently enough to cause personal injury or property damage.
- The fix
- Dealers will equip air systems with a pressure relief valve to be located between the compressor and the air dryer. This pressure relief valve is intended to vent if excessive pressure develops in the air dryer.
- The problem
- The carrier yoke bolts were manufactured with worn rolling thread dies, causing stress concentrations which caused cracks during the quenching process.
- The risk
- This condition can cause bolt failure and allow thedriveline to separate from the carrier assembly.
- The fix
- REPLACE THE CARRIER YOKE BOLTS.
What owners say
Be the first DM owner to share.
Problems or none - your experience is exactly what the next buyer is looking for. Write it now
No complaints about the 1993 Mack DM yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
Mack DM: every year compared
All DM years1993 Mack DM vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 1993 Mack DM | 0 | 3 | D | |
| 1993 Mack Mack | 1 | 0 | A | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 1993 Mack DM
Does the 1993 Mack DM have any recalls?
Yes - NHTSA lists 3 recalls for the 1993 Mack DM: wheels (June 1995); hoses, lines / piping, and fittings (June 1995); trailer hitches (February 1993). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 1993 Mack DM had?
None have been filed with NHTSA so far.
Is the 1993 Mack DM a reliable vehicle?
Its Safety Index is 35 out of 100 (grade D: more problems than a typical Mack DM year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
What should I do if my 1993 Mack DM has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data