Climate control

Hi,

What is the setting you have it set for, panel vents or defrost? I can tell you what I think is happening. The vent door actuators on this vehicle are operated by engine vacuum. At an idle, engine vacuum is much different than when driving. If there is an engine vacuum leak to the unit, that will cause this to happen.

So, first, start the vehicle and while it is running, listen closely under the dash for a hissing sound. That is usually a good indicator of a vacuum leak. See if you can locate that.

If you can't, open the hood and do the same around the engine while it is running.

Let me know what you find.

Joe