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Eric
Eric, Automotive Repair Shop Manager
Category: Chevy
Satisfied Customers: 29945
Experience:  20+ yrs. experience as repair shop manager and technician.
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I have a 2008 Chevy Silverado 4.8 V8 and I just noticed,

Customer Question

I have a 2008 Chevy Silverado 4.8 V8 and I just noticed, while driving for several miles, that my engine temp gauge hasn't moved (it's still at 160) but my cooling fan has come on and my display reads "engine hot, turn off a/c)
Is my engine really overheating?
It's running fine and my antifreeze and oil are all fine also
Submitted: 9 months ago.
Category: Chevy
Expert:  Eric replied 9 months ago.

HI,

If the coolant isnt boiling over in the coolant reservoir tank and not losing coolant, then it is not overheating, but rather a faulty ECT(engine coolant temperature) sensor kicking on the fan and the warning light. The ECT sensor is located on driver side cylinder head towards front of engine(see attached) and will need to be replaced

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