Certain engine support castings were produced with faulty metallurgy and could fail.
Engine & cooling
Mack DMM Series Engine problems by year
0 complaints filed with NHTSA about the Mack DMM Series's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
Engine complaints by model year
| Year | Engine complaints | Crashes | Injuries | Recalls |
|---|---|---|---|---|
| 1988 | 0 | 0 | 0 | 1 |
Engine recalls
Latest DMM Series engine complaints
No complaints in this area yet.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data