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Old 08-05-2011, 10:05 AM
Al E. Gator's Avatar
Al E. Gator Al E. Gator is offline
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Join Date: Jan 2011
Location: Kathleen, GA
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Default AC blend door operation.

On my truck lately I've noticed that when I am sitting at a traffic light or driving very slowly with the AC fan on high I can hear and feel a change in the air flow. To clarify, I dirve doenwn the road noramlly and everything is fine. After I sit at a light for a few minutes if sounds like one of the blend doors moves and changes the airflow routing. It sounds like a leak and the blend door isn't all the way closed. I 'm not sure if it's new or not but now that I've noticed it, it bugs the heck out of me. Does anyone else have this problem? I'm not sure if outr blend doors are vacuum or electric. If vacuum I can see low vacuum being the problem and the possiblility of a leak in a vacuum line. If they are electric I'm not sure what coul be the cause.
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