My car over heats when the a/c is on
Hello, What you are describing sounds like you may have a fan clutch that is not working properly. As you may know, when you turn the A/C on, this causes the engine to work a bit harder due to the added power required to power your A/C system. As this happens, the cooling fans have what is known as a cooling fan clutch, which creates a variable speed for the fans to cool the radiator on an as needed basis. I would suggest having a professional from YourMechanic come to your location to diagnose and inspect your car.
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