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Kiowa
07-19-2011, 11:12 PM
My DF250 engine temp light comes on in the first 10-20 minutes of operation. Each time I turn off engine and restart with no light, then light appears after a couple of minutes. Yet, once warm, the engine runs fine. Heat sensors replaced, thermostat replaced, new water pump. Any ideas?

gillin123
08-05-2011, 04:32 AM
check your water pressure valve.......water pressure leaking through the valve.

Kiowa
09-03-2011, 03:37 AM
The metal housing for the impeller was slightly scored. This scoring allowed exhaust fumes into the cooling system, creating intermittent vapor locking and subsequent engine overheating. Replaced the metal housing and engine has run perfectly since then.

Gunwhale007
09-27-2011, 05:07 AM
check your water pressure valve.......water pressure leaking through the valve.

:) yuuup