Question about 2005 GMC Yukon Xl Denali
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when starting the air condition the air comes only from the feet holes,
these problem comes after replacing the battery and the car was dead for more
than 15 minuets
If----If everything was working great just prior to replacing the battery...In a desperate attempt--just kidding.
I would disconnect the battery
touch the battery's neg & B+ cable ends together.
This discharges capacitors.
Walk away for a few minutes, reconnect the battery and test HVAC functions to see if all is well.
The GM Dealer's Scanner can recalibrate the AC/ heater Actuators.
Note - Actuators do go bad, there are several in your truck.
Let us know
Posted on Mar 13, 2009
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Posted on Jan 02, 2017
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