Why is my Cars AC Blowing Hot Air?
It takes several Air Conditioning Components for you AC System to blow cold air. If any one of them is not working you get hot air or no air at all. There are two very common issues for AC system failure. The first is that the AC System is low on Refrigerant. The AC system in a car uses controls the refrigerant pressure to create a cold. Air blows across the Evaporator Core which cools the air before it enters the cab. If there is not enough refrigerant in the system the system cannot cool properly. Below you can see a vehicle being evacuated of refrigerant to repair a leak at the Drier.