Why does my a / C only make cold air at idle?
Why does my a / C only make cold air at idle? Now if your issue is the second case (good A/C performance when engine is cold, bad performance when engine is warmed up) that would indicate that the temperature blend door is stuck partially open. In your car, engine coolant flow into the heater core all the time. They use a small plastic door to control the air flows into the core. Is your car air conditioner not blowing cold air when? Ever had problems with your car about air conditioner, or AC, not blowing cold air when the...