GMC

GMC troubleshooting questions? Ask a mechanic for answers

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

Related GMC Questions
No Check engine light..Cranks no start. code reader does not
No Check engine light..Cranks no start. code reader does not communicate with vehicle..2002 GMC Sierra 3500 6.0 gas … read more
Reggie Whiddon
Reggie Whiddon
Shop Foreman
Vocational, Technical or Trade School
171 satisfied customers
It won't crank, the gauges won't come on, it says stabil
It won't crank, the gauges won't come on, it says stabil track is off traction control off and some lights won't come on … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,901 satisfied customers
ABS, battery, airbag lights are on in the inst cluster.
ABS, battery, airbag lights are on in the inst cluster. Power windows will not roll up. This happened after trying to start the truck with a dead battery … read more
Roy
Roy
shop foreman
Associate Degree
4,583 satisfied customers
I have a 2008 GMC Sierra with the two battery set up and it
I have a 2008 GMC Sierra with the two battery set up and it won't start. When I turn the ignition key, the lights go on and I can hear a groan under the dash like an electrical component is draining t… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
55,629 satisfied customers
Paitent I'm slow. 2015 gmc 3500 he denali. Hvng trouble with
Hvng trouble with the trailer brake system showing service. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
965 satisfied customers
I have a 2015 GMC Sierra 2500 HD Denali, My truck suffered
Hi Experts , I have a 2015 GMC Sierra 2500 HD Denali , My truck suffered damaged in the engine under covers , I'm not fully aware of wich part to order to make a replacement , also I'm in a country wh… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
55,629 satisfied customers
DEF level 2015 GMC Denali HD filled completely, have drove
DEF level 2015 GMC Denali HD filled completely, have drove 40 mile, 6 restarts and computer telling me 395 mile to speed limitation. … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
55,629 satisfied customers
2015 GMC Duramax. Turn ignition key on and everything lights
2015 GMC Duramax. Turn ignition key on and everything lights up as it should. Gauges adjust to correct readings etc. Turn key to start and everything goes out and starter doesn't even try to work, lik… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
965 satisfied customers
2007 gmc 3500 classic. All lights work except for trailer
2007 gmc 3500 classic. All lights work except for trailer brake lights. Trailer signals work and truck signals work. Truck brake lights work. Just no trailer brake lights. I'm confused.… read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
8,106 satisfied customers
My 2009 gmc acadia, Will crank but won't start. I have
Will crank but won't start. I have replace the crank position sensor and all 6 spark plugs and a new battery. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
6,128 satisfied customers
Have a charging issue. start engine, alternator is cranking
have a charging issue. start engine, alternator is cranking out 14.5 volts. within a minute or two it starts to put out less and less volts until i am completely running on the battery in about 10 min… read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,901 satisfied customers
I have 2015 Denali....it has 7802 miles on it....it won't turn
I have 2015 Denali....it has 7802 miles on it....it won't turn over at all....I am jumping it now and everything about the jump is clean, the battery connections are good. I can't get it to even turn … read more
Roy Scarlett
Roy Scarlett
Occupational Education
17 satisfied customers
Good day. I have a 2007 GMC Yukon that is having a similar
Good day. I have a 2007 GMC Yukon that is having a similar issue with lights flickering at idle. Headlights, tail lights , license plate lights interior lights any insight would be helpful thanks… read more
Michael Moore
Michael Moore
Team leader, bumper to bumper tech.
Associate Degree
2,870 satisfied customers
gmc sierra 1500: 1996 GMC sierra all at the same time the tech
1996 GMC sierra all at the same time the tech the speedometer quit working and the transmission will only shift in 1 and 2 and the check engine light came on what could the problem be… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra HD: Hello. I need to know the wiring diagram for
Hello. I need to know the wiring diagram for the factory headlight plug ( which color wire does what) for my 2011 GMC Sierra 2500 HD please & thank you.… read more
Don - Mo Lurch
Don - Mo Lurch
Owner
Vocational, Technical or Trade Scho
10,705 satisfied customers
GM Sierra Denali Pickup: I have GMC Sierra Denali 03 I believe
I have GMC Sierra Denali 03 I believe it has 5.7L Put new battery,starter.and ignition switch in. Truck will start if engine is cold but when eng. gets hot and I turn it off does not start again. From… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
55,629 satisfied customers
GMC Sierra Denali Classic: I have a 2003 GMC Sierra Denali
I have a 2003 GMC Sierra Denali pickup truck with only 62K miles that won't crank. No clicking sound. Nothing. However, all of the lights come on. The remote lock works fine, and the horn and running … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 2500 HD Pickup: I have a 2004 GMC Sierra 2500 HD
I have a 2004 GMC Sierra 2500 HD Duramax (210,000 miles) that is starting to experience some electrical issues in the rear of the truck - specifically a left tail light and left license plate light th… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,837 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

1,837 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

55,629 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