GMC

GMC troubleshooting questions? Ask a mechanic for answers

Ask an Expert,
Get an Answer ASAP!

Related GMC Questions
2013 Denali - no fan for heat or cooling - dashboard
2013 Denali - no fan for heat or cooling - dashboard controls operate correctly, just no heat or a/c or fan … read more
Edward
Edward
Professional at Justanswer.com
Associate Degree
3,627 satisfied customers
We have a 2007 GMC Yukon Denali xl, trying to locate the
We have a 2007 GMC Yukon Denali xl, trying to locate the fuel pressure regulator … read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
11,778 satisfied customers
I have a similar issue with my a/c not shutting off. My
Hello, I have a similar issue with my a/c not shutting off. My newly licensed teen and her friend went to the drive-ins to see a movie and they couldn't get it to turn off. I looked online and found t… read more
Ron Z.
Ron Z.
- GMC Tech -
Vocational, Technical or Trade Scho
285 satisfied customers
Second opinion] Actually a 2003 GMC Yukon Denali. There is
Second opinion] Actually a 2003 GMC Yukon Denali. There is no power to motor speed control for the hear blower motor. Can't find any bad fuse. The power wire to the module has 12 volts but the purple … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
18,051 satisfied customers
Actually a 2003 GMC Yukon Denali. There is no power to motor
Actually a 2003 GMC Yukon Denali. There is no power to motor speed control for the hear blower motor. Can't find any bad fuse. The power wire to the module has 12 volts but the purple control wire is … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
18,051 satisfied customers
Blower won't turn off and drained battery, No it has run
I just started it and tried to turn it off and the it just keeps blowing. … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
23,904 satisfied customers
I have a '10 Yukon XL Denali with 135K miles. I slowed to a
I have a '10 Yukon XL Denali with 135K miles. I slowed to a stop sign, towing a trailer, on my way to refuel with about 1/8 tank. Motor shut off when I stopped and wI'll crank over but not turn back o… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,842 satisfied customers
GMC Yukon XL Denali: , I have a 2003 GMC Yukon XL Denali.
Hello, I have a 2003 GMC Yukon XL Denali. The front blower does not work at all. So far, I've replaced (with all new, no refurb or reman) the front AC control unit (the same unit with automatic air), … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
18,051 satisfied customers
GM Yukon XL 1500: 2003 gmc yukon xl 1500. Rear air/heat works
2003 gmc yukon xl 1500. Rear air/heat works only sporadically. I was thinking of replacing the rear blower motor control module/resistor. Any suggestions??… read more
Don Knight
Don Knight
Shop Manager/Technican
Associate Degree
1,471 satisfied customers
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
33,599 satisfied customers
GMC Yukon Denali: I have 2007 GMC YUKON DENALI THE PROBLEM
I have 2007 GMC YUKON DENALI THE PROBLEM WITH A.C. IS NOT BLOWING AIR FROMTHE FRONT VENTS BUT REAR IS WORKING FINE. I CHECK FUSE # XXXXX 61… read more
George H.
George H.
ASE MasterTechnician
Associate Degree
230 satisfied customers
GMC Yukon XL Denali: 2006 GMC Denali XL I am told by the dealership
2006 GMC Denali XL I am told by the dealership the fuse(s) controlling the both passenger side window and the passenger side seat have blown. This has occured twice over the last week. The tech has lo… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Envoy XL: I have a 2004 GMC envoy XL. The front AC will
I have a 2004 GMC envoy XL. The front AC will not blow anything when turned on full blast. The rear AC only blows for about 30 seconds and then cuts off on all settings. Any ideas all… Where to start… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC: I have a 2003 Yukon. The rear hvac actuators stay centered
I have a 2003 Yukon. The rear hvac actuators stay centered and won't move. I have 1 new actuator and 1 orignal and a new rear hvac control module. I did the reset (disconnect battery, hold terminals t… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Yukon XL 1500 Denali: 2004 gmc yukon denali xl ac and heat
2004 gmc yukon denali xl ac and heat control in dash is dead, it has a digital readout and an auto button, fuses not blown and connectors are tightly plugged in… read more
goodwrench9124
goodwrench9124
Lead Tech/ Shop Leader
Vocational, Technical or Trade Scho
3,392 satisfied customers
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
1,823 satisfied customers
GMC Sierra 1500: I have an issue with my electric fan in my
I have an issue with my electric fan in my 2005 GMC Sierra. A couple of weeks ago I noticed that it would run on high for no reason, even shortly after starting it. Now what ever was causing the issue… read more
Jerry
Jerry
Service consultant
Vocational, Technical or Trade Scho
13,107 satisfied customers
GMC Yukon Denali: I have a 2006 Yukon Denali XL. Recently,
I have a 2006 Yukon Denali XL. Recently, the fan for the front AC/Heater became intermittent. Sometimes it works well and sometimes not. The ability to turn the fan higher or lower is also intermitten… read more
Eric
Eric
Retired
N/A
33,599 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

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

18,051 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

54,699 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

285 satisfied customers

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

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

230 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x