GMC

GMC troubleshooting questions? Ask a mechanic for answers

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

Related GMC Questions
2013 duramax limp mode poor def quality p20ee code. Sierra
2013 duramax limp mode poor def quality p20ee code. … read more
Chris Carr
Chris Carr
Ase Master
Ase Master Tech
463 satisfied customers
2008 gmc 1 ton with after market flat bed......after I fill
2008 gmc 1 ton with after market flat bed......after I fill both diesel fuel tanks I notice fuel alongside bed and on the outside tire on duel wheels. Yesterday when I shut off engine you can hear som… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,913 satisfied customers
Just bought a 2006 GMC 2500 Sierra pickup. Has a 6.6 Duramax
Just bought a 2006 GMC 2500 Sierra pickup. Has a 6.6 Duramax engine. Someone installed a Edge tuner on the truck. Yesterday i went to start the truck, it startedup and shut off right away. I noticed t… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,913 satisfied customers
My GMC Sierra 2500hd 6.6 1000 tranny is overheating and says
My GMC Sierra 2500hd 6.6 alison 1000 tranny is overheating and says to replace transmission control module … read more
Todd M
Todd M
Owner
ASE Certification
1,955 satisfied customers
I'll be driving a GMC 2005 Duramax diesel essentially noon
I'll be driving a GMC 2005 Duramax diesel essentially noon stop with a 15000 lbs trailer, what engine oil should I be using? … read more
Eric
Eric
Retired
N/A
36,750 satisfied customers
I have a 2012 gmc 6.6 duramax cranks but it won't start.I
I have a 2012 gmc 6.6 duramax cranks but it won't start.I already change the fuel filter housing and the fuel filter. … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,913 satisfied customers
I have a 2005 gmc 2500hd 6.6 duramax. Slt. Resetting the
I have a 2005 gmc 2500hd 6.6 duramax JA: What is the model of your '05 GMC? Customer: slt JA: Are you fixing your vehicle yourself? What have you tried so far? Customer: resetting the ecm JA: Anything… read more
Tim Mohr
Tim Mohr
SHOP OWNER
Master's Degree
17,338 satisfied customers
My GMC 2500HD error message: "service trailer brake system"
My GMC 2500HD error message: "service trailer brake system" … read more
Tim Mohr
Tim Mohr
SHOP OWNER
Master's Degree
17,338 satisfied customers
I installed a flatbed on a 2004 GMC 3500 cab and chassis. It
I installed a flatbed on a 2004 GMC 3500 cab and chassis. It was a plug and play setup for the wiring harness but I have no brake light. All other lights work. I wired up the trailer plug and everythi… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
32,812 satisfied customers
2015 GMC 2500 HD Sierra Denali Diesel - Need to know which
2015 GMC 2500 HD Sierra Denali Diesel - Need to know which fuses to remove for the Onstar, XM radio, and remote start. I am trying to install a Hypertech engine tuner programmer and it says to remove … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,913 satisfied customers
gmc pickup duramax: I have a 2007 gmc duramax some times it
I have a 2007 gmc duramax some times it wont start just does the light flashing in the dash if u pull the fuse for the pcm and leave the key on for ten minutes thenput the fuse back in it will start t… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
766 satisfied customers
GMC Sierra 2500 HD Classic SLE: I have a 2004 gmc Sierra 2500
I have a 2004 gmc Sierra 2500 HD 6.6 diesel LB7 the seat belt light stays on all the time an the temp gauge on the rear viw mirror quit working..both around the same time??? could it be a fuse I misse… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
32,812 satisfied customers
Gmc Sierra 2500 hd: I have a 2003 gmc Sierra 2500hd duramax
I have a 2003 gmc Sierra 2500hd duramax diesel. I am getting my battery " not charging light" coming up on my display... I figure that it is the alternator as it has over 240000 Km's on it and bever b… read more
Mike Kelly
Mike Kelly
Auto Mechanic
Vocational, Technical or Trade Scho
2,509 satisfied customers
GMC Sierra 3500 Pickup: To hum it may consern; I just
To hum it may consern; I just purchased a Max Energy Power Programmer for my GMC 2012 Sierra 3500 4WD EXT SRW SLE. It has a Duramax 6.6 V8 Turbo Diesel with a Allison 6-speed automatic trans. I have d… read more
George H.
George H.
Technician
Associate Degree
19,159 satisfied customers
GMC Sierra 2500 HD Classic SLT: The drivers cluster on my 2007
The drivers cluster on my 2007 GMC sierra classic body 2500 6.6 duramax SLT has gone black. No lights at all. Even the 4x4 /2x4 buttons don't light up. As well, my heated seats stopped working. I hit … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,913 satisfied customers
GMC Sierra 2500 HD SLT: My 2005 GMC HD2500 Duramax Diesel Sierras
My 2005 GMC HD2500 Duramax Diesel Sierra's transmission temperature rises while pulling my trailer and going up grades. As I live in Las Vegas, the transmission tempature also rises about 20 degrees w… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,913 satisfied customers
GMC 2500 hd 4x4 duramax: I have a 2008 duramax 2500 hd and
I have a 2008 duramax 2500 hd and want to put a Bully Dog system on it. I pull a 11k pound trailer all the time and want to make sure I have the temps for the engine and trans set to the correct setti… read more
proautotech
proautotech
Shop Foreman
1,144 satisfied customers
GMC 1500 Series: I put an after market trailer hitch on my
I put an after market trailer hitch on my 2002 GMC Sierra. I need to know how to install wiring into trucks wiring. I have read some trucks didn't come with wiring installed, if so I need to know both… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,913 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

1,913 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

766 satisfied customers

16 years of experience

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

248 satisfied customers

GM, GMC, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics

Mike S.

Mike S.

ASE Certified Technician

241 satisfied customers

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

< 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