GMC

GMC troubleshooting questions? Ask a mechanic for answers

Ask an Expert,
Get an Answer ASAP!

Related GMC Questions
Actually mine is a gmc envoy. If a service order from a
actually mine is a gmc envoy. If a service order from a dealer back on 7/23/2007 says "replaced UBEC and reprogrammed control head", would the control head have the updated software that was released … read more
sprinkles08
sprinkles08
Technician
High School or GED
18,071 satisfied customers
2006 gmc envoy xl 5.3 4wd. Car off randomly and won't start
2006 gmc envoy xl 5.3 4wd . Car shits off randomly and won't start until it cools. Not overheating stays at 210 temp. Scanner shows throttle body codes, evap, and ignition switch . I changed throttle … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,491 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
6,491 satisfied customers
I have a 2008 envoy denali 4x4 sports suv with AT and 5.3
Hi, I have a 2008 envoy denali 4x4 sports suv with AT and 5.3 engine. I'm having problems with the engine temperature gauge. As I'm driving it will drop from the normal 260 d. temp to zero/lowest temp… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
Howdy, I have a 2005 GMC Envoy Denali 5.3 with 142101 miles
Howdy, I have a 2005 GMC Envoy Denali 5.3 with 142101 miles on it. After about an hour or so of running, the motor will shut off. It will crank but not run. After about a couple of hours of sitting it… read more
Ron Z.
Ron Z.
- GMC Tech -
Vocational, Technical or Trade Scho
285 satisfied customers
2005 GMC Envoy Denali 5.3, Was driving down ghway when motor
2005 GMC Envoy Denali 5.3, Was driving down highway when motor shut off. Barely made it to side of road. Tried to restart, turned over a few time but never ran. Now when try to start it does nothing. … read more
Triston
Triston
High School or GED
1,613 satisfied customers
GM savana 2500 hd: , I have a 2008 GMC 2500 hd van with
Hi, I have a 2008 GMC 2500 hd van with 45,000 miles . The van misfired 1/2 from home. I drove home and parked the car. Next day, I found out a spark plug wire fell off at the coil's end . I plugged it… read more
Pete
Pete
GMC Mechanic
General auto certifications
34,284 satisfied customers
gmc envoy: i have a 2002 gmc envoy,that will crank and start
i have a 2002 gmc envoy,that will crank and start when the outside temp is cool,75 degrees but when it sits all day and the temp outside gets hot the vech will not crank or start.i have replaced the e… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
Youre a GM man which I think is needed because a Mitsubishi
You're a GM man which I think is needed because a Mitsubishi guy couldn't answer yesterday. I saw an identical problem with an '06 Monte Carlo LT on a review site and hope you have seen or heard of th… read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,083 satisfied customers
GM Envoy XL: I have a 2005 GMC Envoy XL 4.2L, At initial startup
I have a 2005 GMC Envoy XL 4.2L, At initial startup the vehicle runs fine except the idle seems a little high and fluctuates. After it has been driven enough to reach operating temperature it misses h… read more
Pete
Pete
GMC Mechanic
General auto certifications
34,284 satisfied customers
GM C4500: 2005 C4500 GMC 6.6 Automatic transmission VIN# XXXXX
2005 C4500 GMC 6.6 Automatic transmission VIN# XXXXX Problem: Vehicle will not start. There is no fuel going to the fuel filter. There is a U0105 DTE Code. Scanner used is a Snap-On Modus. There is no… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
675 satisfied customers
GM envoy: i have a 2004 gmc envoy keeps setting code 1345 this
i have a 2004 gmc envoy keeps setting code 1345 this is a vehicle from a used car lot.the mechanic at the car lot put on 2 cam solenoids crank sensor and cam sensorand changed the oil 5w30.he brought … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
I cleared the error code but is back again. What do I do?
2007 GMC Envoy with120,000 mile. Got code P1400. Cleared it about two weeks ago and it just came back.… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
12,672 satisfied customers
My 2008 gmc envoy won't start. We purchased a scanner but no
My 2008 gmc envoy won't start. We purchased a scanner but no codes come back... Yesterday my husband pulled the ECM fuse while it was running which killed the engine and it hasn't started since...… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,823 satisfied customers
MY CAR IS REVING TOO FAST SOMETIMES IT DOES IT FOR A SHORT
MY CAR IS REVING TOO FAST SOMETIMES IT DOES IT FOR A SHORT PERIOD AND SOMETIMES IT DOES IT FOR A LONG PERIOD AND SOMETIMES IT DOESN'T DO IT AT ALL. IT USES MUCH MORE GAS THAN IT USED TO… read more
Hal
Hal
owner/service tech
Vocational, Technical or Trade Scho
925 satisfied customers
GMC Suburban K1500 4x4: I have a NO spark problem in a 97 gmc
I have a NO spark problem in a 97 gmc suburban 1500 4x4 5.7 auto. bought cheap, off craigs list with a cracked block. It had over heated before. Even with water in the block I thought I might be able … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,823 satisfied customers
GMC Envoy SLT: I have a 2002 envoy with 4wd. I tried to activate
I have a 2002 envoy with 4wd. I tried to activate 4wd got a flshing light then went back to 2wd without activating 4wd.?? whats the problem!!… read more
relicdigger3
relicdigger3
Automotive Technician
Associate Degree
149 satisfied customers
GMC Envoy Denali: 2005 GMC Envoy 5.3 V-8 2x4 car was driving
2005 GMC Envoy 5.3 V-8 2x4 car was driving down the road when the engine suddenly stalled and the dash gave a "check brake system" display which I assume is just because the engine stalled. Now when y… 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

1,823 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

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