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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 2378
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Getting message "engine hot ac off" thermostat gauge not

Customer Question

Getting message "engine hot ac off" thermostat gauge not working. Is this a sensor problem or thermostat problem or both.
Submitted: 1 year ago.
Category: Pontiac
Expert:  tristan replied 1 year ago.

If the truck is actually overheating and the fans work and the coolant is full id say it's a bad thermostat if it not really overheating and then all of a sudden you get that coming up on the dash I'd suspect a bad coolant temp sensor. Please give positive rating and reply back any other questions. Thanks