GMC

GMC troubleshooting questions? Ask a mechanic for answers

Ask an Expert,
Get an Answer ASAP!

Related GMC Questions
05 gmc yukon denali 6.0. on first initial start up, starts
05 gmc yukon denali 6.0. on first initial start up, starts up for 2-3 seconds and shuts off right away. after that just cranks unless you purge by key on and off, then it will start up again for 2-3 s… read more
JFN1
JFN1
ASE Certified Technician
Vocational, Technical or Trade Scho
272 satisfied customers
U0100 no communication with pcm. No crank no start. Rear
U0100 no communication with pcm. No crank no start. Rear power hatch not working. All started at the same time. Fuel pump runs constant with key on … read more
jim
jim
Vocational, Technical or Trade Scho
702 satisfied customers
I just bought a new battery at autozone and they put it in
I just bought a new battery at autozone and they put it in but the next day when I tried to put 2006 gmc envoy into two wheel drive from auto it just flashes and then moves to four wheel drive high. I… read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
I have a 2002 GMC Envoy with a no start .I have made sure
I have a 2002 GMC Envoy with a no start .I have made sure that i have start power at ignition switch. there are no codes in ECM.I have a U1000 code in BCM and IPC. In security data under BCM data it s… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
BCM was exchanged because of bad connectors. Now car won't
BCM was exchanged because of bad connectors. Now car won't start. Message on DIC indicates “Theft Deterrent System”. Do you know the procedure to re-key… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,738 satisfied customers
I have a gmc. envoy. operating in limp mode only codes
i have a gmc. envoy. operating in limp mode only codes related are u1000 and u1301. … read more
rpmdiag
rpmdiag
High school
7,987 satisfied customers
2006 GMC Envoy: Dec 2026 replaced fuel pump. Jan 2017 Check
2006 GMC Envoy: Dec 2026 replaced fuel pump. Jan 2017 Check Engine Light on Code P0301 Check all-no issues. Change Sparks. Light off 1 week later Check Engine Light back Code P1516 1 week later Check … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,222 satisfied customers
What has to be done by me after install of new ecu, 05 gmc
what has to be done by me after install of new ecu … read more
indy-tech
indy-tech
Shop owner, technician
Vocational, Technical or Trade Scho
11 satisfied customers
05 Yukon, starts right up and shuts off immediately. Tried
05 Yukon, starts right up and shuts off immediately. Tried the 10min procedure but my security light on the dash never shuts off. tried several times.… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
5,738 satisfied customers
I have a 1999 GMC Safari AWD When I turn the ignition key
I have a 1999 GMC Safari AWD When I turn the ignition key the dash lights come on but the starter doesn't work, the security lights keep flashing and my scanner won't communicate with the ECU so I can… read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
2006 gmc envoy denali started ran for 10 minutes then died.
2006 gmc envoy denali started ran for 10 minutes then died. wouldn't start … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
675 satisfied customers
GMC Jimmy 4x4 (Mid Size): my 1999 gmc jimmy will run on starting
my 1999 gmc jimmy will run on starting fluid but not off gas i have the proper pressure i have replaced the computer i have done the passlock reprogram and still nothing it sat for almost a year with … read more
heavy_chevy_396
heavy_chevy_396
Vocational, Technical or Trade Scho
2,518 satisfied customers
GMC Jimmy 4x4 (Mid Size): I am looking at a 99 gmc jimmy 4.3
I am looking at a 99 gmc jimmy 4.3 awd It wouldn't turn over last week. I went to look at it and of course it started right up. I did notice that the security light is flashing. The key for the igniti… read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
I have a 2000 gmc 2500 and it keeps blowing the ecm fuse everytime
I have a 2000 gmc 2500 and it keeps blowing the ecm fuse everytime I try to start it.No codes… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
GMC 2500HD: I have two issues that I thought were separate,
I have two issues that I thought were separate, but may be related? First issue is that the ABS and Brake warning lights are on most of the time. But I have noticed no problems (pulsating, etc.) with … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,825 satisfied customers
GMC Envoy SLT: I have GMC Envoy 2007, fuel gage on the instrument
I have GMC Envoy 2007, fuel gage on the instrument panel doesn't work properly- when I start the engine the gage shows the right amount of gas, but after few minutes the arrow dropped to 0 point then … read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
GM Envoy: I have a 2002 GM envoy doing that security light
I have a 2002 GM envoy doing that security light thing, it doesn't even turn over when you turn key. So I should try the passlock sensor instructions? The security light is on and there is nothing els… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GM envoy: I have a 2002 envoy and the retained accessory power
I have a 2002 envoy and the retained accessory power has stopped working. It started yesterday when my dome/reading lights were all on when I started it and was driving down the road. I was able to ge… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 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

1,825 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

18,049 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

675 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