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I have a 2008 GMC Yukon Denali that the front AC goes on and
I have a 2008 GMC Yukon Denali that the front AC goes on and off … read more
Jared D
Jared D
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Bachelor's
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Rear ac appears to blow cold front ac just blows room temp
Rear ac appears to blow cold front ac just blows room temp air … read more
nelson freitas
nelson freitas
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Vocational, Technical or Trade School
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I have a 2012 GMC Acadia. Denali package. I have an issue
I have a 2012 GMC Acadia. Denali package. I have an issue with rear AC blowing warm air while front is cold. If I set heater on high temperature I get very hot air through them butt when I set it on A… read more
sprinkles08
sprinkles08
Technician
High School or GED
18,065 satisfied customers
I have a 2006 GMC YUKON DENALI XL and the front A/C & Heat
I have a 2006 GMC YUKON DENALI XL and the front A/C & Heat isn't working, I just replaced the front / forward digital control and nothing the blower would occasional spin but never on command and now … read more
Gary
Gary
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Vocational, Technical or Trade Scho
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GM Yukon Denali: I have a 2007 GMC Yukon Denali. The front
I have a 2007 GMC Yukon Denali. The front ac vents don't throw out any air. But the rear ac vents do throw. The air that does come out through the rear vents is not cold air.I checked the AC compresso… read more
Gary
Gary
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GM: I have a 2003 Yukon Denali AWD, I replaced the blend door
I have a 2003 Yukon Denali AWD, I replaced the blend door actuator under the kick plate passenger side and still get HOT air up front only. It is my understanding there is a blend actuator somewhere b… read more
Gary
Gary
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Vocational, Technical or Trade Scho
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GM: 2008 GMC Denali - AC will not blow cold air in agin. Replaced
2008 GMC Denali - AC will not blow cold air in agin. Replaced low side switch and jumped relay in fuze box - AC compressor engaged and drying canister was cold to touch and frosted but no cold air in … read more
sprinkles08
sprinkles08
Technician
High School or GED
18,065 satisfied customers
GMC 05 Yukon Excell Denali: I have a 05 Yukon Denali. Sometimes
I have a 05 Yukon Denali. Sometimes my AC blows Hot air on the left and Cold air on the right AT THE SAME TIME, (the temp setting are BOTH on Cold) another time hot air comes out on both sides. Then, … read more
C. Walker, Jr.
C. Walker, Jr.
633 satisfied customers
GM yukon denali xl: I have a 2003 yukon denali xl. after a
I have a 2003 yukon denali xl. after a dead battery the front dual climate control began to not function properly, heat would blow on one side and ac on other. Then no cold air at all. it still blows … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
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GMC Yukon XL Denali: The A/C on my 2008 GMC Yukon XL Denali
The A/C on my 2008 GMC Yukon XL Denali is not working properly. The back AC will blow but the front will not. I've replaced the blower motor resistor, charged the freon, checked all the fuses, but it … read more
Eric
Eric
Retired
N/A
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GMC Yukon Denali: Does the 03 GMC Yukon Denali have a separate
Does the 03' GMC Yukon Denali have a separate A/C system for the rear air-conditioning, or does it it just get air diverted from the front?… read more
Anthony
Anthony
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Vocational, Technical or Trade Scho
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GMC Yukon Denali: A couple years ago you helped a guy with
A couple years ago you helped a guy with a 2002 GMC Yukon Denali that was having front air blowing only out of the defroster vents. After having them check a few things you'd recommended the ac actuat… read more
Dave Nova
Dave Nova
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Associate Degree
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GMC Yukon XL 1500 Denali: I have a 2008 GMC Yukon Denali XL
I have a 2008 GMC Yukon Denali XL w/ 6.2L AWD. Recently my Aux (Rear) AC stopped working. All functions of FWD and Rear controls appear to work correctly. Swapped FWD/AUX Blower Control. Both worked f… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
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GMC Yukon SLE: My 2001 Yukon Rear AC blows warm air. The front
My 2001 Yukon Rear AC blows warm air. The front works very well and blows cold air in conjunction with front settings. What would be the cause of the rear AC. I've read some of the responses, and most… read more
Anthony
Anthony
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Vocational, Technical or Trade Scho
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GMC Yukon: I have a 2002 Yukon and the rear a/c is not blowing
I have a 2002 Yukon and the rear a/c is not blowing cold air. Actuator seems fine. Rear a/c is not engaging compressor… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
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GMC Yukon SLT: I have a 03 GMC YUKON and my a/c works fine
I have a 03 GMC YUKON and my a/c works fine in the front but when i turn on the rear a/c at the top of the truck it blows hot air out of the rear vents that should blow cool air to cool the back of th… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Yukon: I have a 2001 GMC Yukon SLT. The front blows cold
I have a 2001 GMC Yukon SLT. The front blows cold AC, but no heat. The rear only blows hot but no cold. I replaced and re-calibrated the air door actuator. Any ideas what else it could be??… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
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GMC Yukon Dear Expert! Im freezing the kids! in my 2005 GMC
Dear Expert! I'm freezing the kids! in my 2005 GMC Yukon, The rear heat does get hot! it blows, but its all cold air! Where can i start looking to solve my problem? all the controls work(blowers, knob… read more
Randall C
Randall C
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Vocational, Technical or Trade Scho
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,823 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,589 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

54,664 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

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18+yrs experience. State Inspector & GMC Diagnostics/Repair

JFN1

JFN1

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272 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

230 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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