I have a 2002 GMC Yukon Denali. My A/C and Heating isn't working in the front when turning the knobs on or even turning the settings on high. The rear A/C and heating works fine at any setting. I looked at the fuses under the engine hood and none seem to be shorted out or anything. I even changed the fuses for the air and a/c just to make sure. are there any other fuses I should look at? Please, I need your help!
Hi there,
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Posted on Jan 02, 2017
SOURCE: '04 GMC Yukon Denali Check Engine Light
Did u put in fuel shortly before the light came on? I own 2 service centers & the most common situation with "Check Engine" lights are because the fuel cap wasn't re-installed or not tightened. When you refuel make sure it "clicks" when putting back on. We don't charge for a "Code Reading" but a dealer will, don't go there. Go, like the others suggested. If it is the fuel cap & you re-install it correctly, the light will go off after a short drive. Good Luck. PS-Don't panic when the "Check Engine" light comes on unless it blinks, if that happens don't drive. PSS-RE: Murray's, Auto-Zone.......If it's a "Code" (the reader will give a #) the code book will tell you the problem. PSSS-Some1 please have Troy W's Mommy & Daddy take away his keyboard. Just because you can put together a "Lego" car doesn't make you a master mechanic. You only repeated what we said except you have a "Napoleon" complex against any1 plugging something in to a vehicle. It's the same as plugging in a light @ home. In conjunction with "kinder" nine out of ten time in my experience it usually is the oxygen sensor(s) which would be about right with the year model
Posted on May 18, 2008
SOURCE: 2005 gmc yukon xl denali service ride control
it has to do with your air ride suspension best bet is take it to the dealer there is probably a problem with a level sensor. hope this helps you
Posted on Mar 16, 2009
SOURCE: Heated seats won't stay on in 2004 GMC Yukon Denali
There is a widespread problem with electrical shorts with the seat warmers. I bought the extended warranty through CarMax and theyy fixed it. Retail repair cost on that would have been $900+. It may be covered by GMC via a recall, but only if you raise enough hell.
Posted on May 05, 2009
SOURCE: Need color codes for radio in 2002 gmc yukon denali
2002 GMC Yukon Car Stereo Wiring Guide
Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Brown
Car Stereo Dimmer Wire: Gray
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio 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
Car Audio Rear Speakers Size: N/A
Car Audio 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
Posted on May 24, 2009
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Do you mean "no fan at all" or "no temp control"? If it's no fan, change the control head in dash, it's about 170. If you know someone who owns one ask to test yours in theirs. It's plug n play. Don't ask to put theirs in yours! if there is more than one problem you don't want to damage theirs as well! Next: if it's temp control, you need to have the oriface filter replaced under the hood in the line. it's only a $10 part but controls your freon flow and temp. Mine did the same thing, I have an 01 and have replaced just about everything on it now! 233k and still goin strong. Hope this helps.
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