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Posted

2020 gmc Denali duramax, will not blow out any air threw ac vents I can hear the fans spinning, check cabin airfilter no blockgage 

does anyone know where the air pick up is for the cabin air?

  • 4 weeks later...
Posted

Not meant as an insult, but have you tried changing the direction the vents blow?  On mine, if I aim a vent all the way down it closes the damper for that vent.

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