05 hvac re-circulate

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mwilson62000

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In my 05 Yukon XL, when I hit the recirculate button on the hvac, there isn’t a noticeable increase in sound and airflow like there was in my 03 Tahoe. 05 has electric fans and 03 did not. Was asking my neighbor to bring home tech2 one weekend to check out the door position and make sure actuator and door is working, but thought I’d ask if anyone with an 05 knows if this is normal or anyone else has any thoughts.
 

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