Question about 2000 GMC Yukon XL

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Dash Vents not blowing after stereo install. I checked fuses and relay's. I even took off dash cover and stereo could not see any Vac lines or loose cables...

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  • GMC Master
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Did you check the fuses under the hood? Do that if not. Also in some models the controls for the climate system are routed through the radio. Contact this company and ask them about the possibility that you have that kind of problem from the aftermarket radio you put in. www.crutchfield.com

Posted on Nov 07, 2012

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 97 Chevy Tahoe dash vents not working

ck for vaccum leaks at engine comparment small plastic lines

Posted on Apr 16, 2009

Molson02536
  • 3854 Answers

SOURCE: stereo wiring for my 1997 jimmy

Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Ignition Switch (The radio harness does not provide a switched power source. Run a wire from the Ignition Switch.)
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Good luck and hope this helps.

Posted on May 13, 2009

  • 5 Answers

SOURCE: dash vents not working

It may be the actuator not working properly. Should be above the accelerator pedal to the right.

Keeme

Posted on May 20, 2009

mechanicm639
  • 253 Answers

SOURCE: Dash vents will not blow air

It may be the mode actuator. Have you heard any clicking or other strange noise ? Under the drivers rear seat, in a plastic box is a fuse panel. Remove the two retainers, and the cover. Remove the HVAC or A/C fuse for a minute or two. Reinstall the fuse and this will make the A/C system relearn. Whwn you put the fuses back do not touch the A/C controls. Start the truck and leave it run for two or three minutes. Then try to change the vent from floor to vent and defrost. If this does not work you will need a mode motor. Good Luck

Posted on May 22, 2009

  • 1 Answer

SOURCE: Dash vents will not blow air. Defroster and floor vents blow fine.

Is it a new vehicle? I had a new vehicle that had the same problem. Answer was that the holes weren't punched out of the vent.

Posted on May 23, 2009

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