Check your accuators in the heater box i'll include a generic picture. If its vacuum operated check for a leak
August, 8, 2011 AT 9:00 PM
Is AC auto? If you lived in England no prob
August, 8, 2011 AT 9:15 PM
It's the air conditioning system in my car. The air does blow through all vents but only cold through one vent. I will try to look at the damper.
August, 8, 2011 AT 9:32 PM
If I close off the vent thats blowing cold then the other vents start blowing cold.
August, 8, 2011 AT 11:09 PM
You have what's called actuators in your hvac. One controls hot/cold and theother controls where it goes. Your one actuator is eitehr stuck or not working. If it's vacuum operated check for a leak, if it's electrically operated then check to see if it's getting electric when you put it on a/c. My guess it's vacuum and isn't getting vacuum to operate correctly