Hello, every one, have a 90 mustang GT. Car runs great accept when I run the AC. Going down the road the air gets cool but not cold. When I am at idle, it gets warm and the car starts to over heat. Soon as I go down the road it starts to cool down again, both the temp and the AC. New radiator, water pump, thermostat, fan and fan cluch. I realize it's a airflow problem but the car is almost stock, what's the cure. Also while not running the AC the temp is perfect even at idle.
Any advise would be appreciated.
Any advise would be appreciated.