Table 1 shows four common engine and engine cooling related problems of the 2007 GMC Sierra 2500. The number one most common problem is related to the radiator hose (one problem). The second most common problem is related to the gas recirculation valve (egr valve) (one problem).
| Problem Category | Number of Problems |
|---|---|
| Radiator Hose problems | |
| Gas Recirculation Valve (egr Valve) problems | |
| Radiator problems | |
| Diesel Engine problems |
General motors GMC sierra duramax equipped pick up trucks (lmm series) have an issue with leaking transmission cooling lines where the rubber hoses are crimped to the steel connectors. The problem is a fire hazard due to leaking transmission fluid. Read details...
Check engine light comes on and engines goes into reduced power mode. Doesn't have enough power to go over 40 mph. While pulling a trailer the engine doesn't have enough power to climb hills or go over 25 mph. Read details...
The contact owns a 2007 GMC Sierra 2500. The contact stated that the vehicle's coolant is constantly low. The warning light indicated a low coolant level. The dealer diagnosed the cause of failure as the o ring missing from the fly wheel housing coolant. Read details...