Radiators & Cooling
Car Overheating When the AC Is On? Why A/C Load Exposes Cooling Problems
If your car overheats when the A/C is on, the A/C usually isn't the problem. It adds engine load and heat in front of the radiator that a weak cooling fan, clogged fins, low coolant, or a failing water pump or thermostat can't handle, especially in stop-and-go traffic.
6 min read


