My air diverter is stuck in the defroster mode and will not change to the front vents of the floor vents. The air conditioning works great, just will not divert properly. I have taken the entire front off the dash and exposed the heat/air unit, removed the controls and inspected the connections, and now puzzled what to do next?
This is a real common problem and most likely you got very carried away. If the controls and actuators are run by engine vacuum, the system will be spring-loaded to default to defrost mode for safety. Your feet might freeze but the windshield will be clear. Look for a small hard plastic vacuum hose broken under the hood or disconnected. There will also be a small check valve in that hose near the firewall. Be sure the hoses didn't pull off of that.
July, 5, 2013 AT 12:50 PM
Thank you very much. That was my next move. I'll put it back together.
July, 5, 2013 AT 1:10 PM
You're welcome, but before you go through some more work, be sure you really do have vacuum controls and not electronic. You'll see various-colored plastic hoses going to the actuators from the control head. If you have actuators with two electrical wires, you have a computerized electronic system and you may still have a problem in the dash. I'm not really an expert on diagnosing those but I do know how they work.