2005 GMC SIERRA
73,000 MILES
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WALLS.LANDON
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temp guage going from 210 (normal) to 235 and then back down to normal.
I hear a humming from the fan in the engine. When I am turning it off I hear a release of air or fluid. This was after an oil change and service from the dealership. What is it? Thanks
Jan 18, 2013 at 3:00 AM
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ASEMASTER6371
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could be low in coolant or the thermostat is bad, not opening on time.

humming is the fan clutch most likely from the motor running hot

Roy
Jan 18, 2013 at 3:10 AM