A/C Click Clack only on Recirculate

Joined
5 November 2003
Messages
275
Location
Plano, TX
When I'm running the AC I now hear a clack clack intermittently when the fan is blowing. It doesn't care what fan speed. However, I have noticed that I only hear it when on the recirculate setting, not with the fresh air setting.

The noise is coming from the passenger side like its inside the glove box. When I pull the hood I can hear it coming from the same area.

Is there some sort of valve that is broke or has something in it? How do I get in there to see?
 
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