When i turn my a/c on it works great until i stop somewhere, lets say a gas station, to get a pop and when i come back out the a/c is blowing hot air and soon as i get moving the compresser kicks back on and works fine until i stop somewhere and let it idle and it has done it since i have owned the truck. The freon is full, is there anything else that i can check, before going to the dealership?
