GMC

GMC troubleshooting questions? Ask a mechanic for answers

Connect one-on-one with {0} who will answer your question

Related GMC Questions
2015 GMC Sierra 1500, v-6; radiator fan continues to after
2015 GMC Sierra 1500, v-6; radiator fan continues to after turning off the engine...what could be wrong ? … read more
ScottKrakenAuto
ScottKrakenAuto
Service Advisor
High School
10 satisfied customers
2006 Gmc Sierra, radiator fans don't engage with AC, so
2006 Gmc Sierra, radiator fans don't engage with AC, so doesn't blow cold … read more
BRIAN
BRIAN
Program Coordinator/Professor Automotive
BS
369 satisfied customers
2005 GMC Sierra ac clutch will not engage unless I shoot 12
2005 GMC Sierra ac clutch will not engage unless I shoot 12 volts to green wire on back pressure switch on back of compressor. 1o volt fuse is good ac relay gets power on prong 86 and 87 tried to jump… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
70,160 satisfied customers
2008 GMC Sierra 2500 HD. Over heats occasionally and
2008 GMC Sierra 2500 HD. Over heats occasionally and intermittently.first time it happened I was pulling a camper the heat guage went to 125c . I slowed down the truck shifted down and the guage dropp… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
2005 GMC Sierra Denali. AC control when the temp is set at
2005 GMC Sierra Denali. AC control when the temp is set at 60 degrees, not in "auto" and the fan is turned to full speed, the air will blow for as long as you can stand to be in the cold air. within a… read more
Mechanic01
Mechanic01
13,323 satisfied customers
I have attempted to charge the air conditioner on my 1995
I have attempted to charge the air conditioner on my 1995 GMC Sierra, but the compressor still will not turn on. It doesn't seem to be taking the charge, as if it is already full.… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
42,143 satisfied customers
I have a 2002 GMC envoy that overheats if sitting in traffic
I have a 2002 GMC envoy that overheats if sitting in traffic or in park. I have replaced the fan clutch. That worked for about a week but I rarely drove it for very long. First time I drive it over 40… read more
Tim Mohr
Tim Mohr
SHOP OWNER
Master's Degree
17,895 satisfied customers
GMC Sierra 1500 2WD Truck: I have a 2000 GMC Sierra 1500 Truck.
I have a 2000 GMC Sierra 1500 Truck. Pretty sure it has the 5.3L engine and it is only 2WD. The AC compressor is short cycling. I went to Harbor Freight and purchased their $60.00 Pittsburgh brand R13… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Seirra Denali: I have a GMC Sierra Denali. The AC seems
I have a GMC Sierra Denali. The AC seems to work only when it wants to. I seems to be connected with the temp under the hood. Have had new cycling swith, Accumulator, condensor and arfice installed. O… read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,714 satisfied customers
GMC Sierra Denali HD: I have a 2011 GMC Sierra Denali HD.
I have a 2011 GMC Sierra Denali HD. I wrecked my tailgate a while back, and have since had it repaired. However, ever since I wrecked it, my rearview mirror and rearview camera has no power to it. The… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 1500 Classic SLE: I have a 1989 GMC Sierra K1500.
I have a 1989 GMC Sierra K1500. Over the last few months, my AC/Heating Graphic Control Panel is becoming a problem. It seems to work fine during warm weather, but when the air temperature inside the … read more
Canadafix
Canadafix
Auto shop owner
Vocational, Technical or Trade Scho
1,507 satisfied customers
GMC 2500: There is a recall on my 2007 GMC sierra diesel truck
There is a recall on my 2007 GMC sierra diesel truck for Hvac/ac blower. I didn't get the truck into the dealership to have it replaced but now I just started the truck and am smelling a plastic burni… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC: 04 gmc sierra with manual ac truck blows ice cold then
04 gmc sierra with manual ac truck blows ice cold then turns to heater air shut truck off start and turn ac on and its cold again pressures are normal on low and highside… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC C3500 HD Chas/Cab: ac blows kinda warm while at idle .
ac blows kinda warm while at idle . get cold under acceleration ( driving or sitting still) what could it be. 2000 GMC 3500 454… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sa: Have 2005 GMC Savana 3500 6.0L. The a/c works sometimes
Have 2005 GMC Savana 3500 6.0L. The a/c works sometimes anywhere from a minute to 20 minutes then blows hot. I have changed exp tube. I have connected guages and drove truck. I get about 200 head and … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
2,126 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
13,108 satisfied customers
GMC Sierra 1500: 2006 GMC Sierra Denali. 6.0. I have had compressor
2006 GMC Sierra Denali. 6.0. I have had compressor and condensor changed due to leaks. (just bought truck) Replace one line also due to resriction. Vacuumed and leak checked okay. Charged with 1lb 7oz… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
2,126 satisfied customers
GM Sirerra Deanli: I have a 2003 GMC Sierra Denali. Air conditioner
I have a 2003 GMC Sierra Denali. Air conditioner will blow cold a few seconds then go warm, cold , warm etc. A so called mechanic said it was the controller. I replaced the controller, problem not sol… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
14,132 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

2,126 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

70,160 satisfied customers

24 years of experience diagnosing & repairing

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Mike S.

Mike S.

ASE Certified Technician

256 satisfied customers

GMC N.A.I.S.E. Certified Auto-Mechanic

George H.

George H.

ASE MasterTechnician

233 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