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.
Have a car question? Get free advice from our top-rated mechanics.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing