Vehicle having electrical issues, lights and radio shutting off and exhaust engine break working intermittently. Hooked up and mostly data link codes. Ic cluster lights flash on and off while hooked up. Found engine ecm full of oil on both a and b connectors. Oil level sensor is leaking wic king oil up to ecm. Will need ecm,harness,oil level, oil pressure sensors and egr venturi front cab mounts are wore causing air cleaner heat sheild to rub thought valve cover. Need to repair engine before anymore t/s.
Engine & cooling
2009 Mack GU Engine problems
Owners have filed 1 complaint about the 2009 Mack GU's engine & cooling with NHTSA - 100% of all its complaints, most recently on September 18, 2018. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 1
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Engine complaints
Mack GU engine complaints by year
GU engine problems, every yearSource: 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