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cardoctor71
cardoctor71, ASE Certified Technician
Category: Chevy
Satisfied Customers: 670
Experience:  MasterCertified ASE Technician With 35 years experience
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You 07 impala is showing Ac off Rhine over heat on the dash

Customer Question

You 07 impala is showing Ac off Rhine over heat on the dash and my fans are coming on but my car isn't running hot. I replaced thermostat coolent sensor water pump and radiator and it's still doing the same thing and suggestions
Submitted: 3 months ago.
Category: Chevy
Customer: replied 3 months ago.
Engine over heat on dash.... Any suggestions
Expert:  cardoctor71 replied 3 months ago.

Engine coolant temperature sensor is shorted to ground, replace the sensor should solve your issue, Please Rate my service, if you have additional questions I will answer them until you are completely satisfied with my answers.

Customer: replied 3 months ago.
We replace the coolent sensor already
Expert:  cardoctor71 replied 3 months ago.

There are 2 one for the computer one for the guages and fan both located side by side on thermostat housing, if sensors replaced and still does it, computer is where the short is.

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