GMC

GMC troubleshooting questions? Ask a mechanic for answers

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

Related GMC Questions
2005 lly 6.6 duramax cranks will not start new pcm installed
2005 lly 6.6 duramax cranks will not start new pcm installed and set up. … read more
eric remington
eric remington
FORMER SHOP OWNER/TECHNICIAN/INSPECTOR
associates degree
1,563 satisfied customers
2008 3500 duramax new power steering pump makes a vibrating
2008 3500 duramax new power steering pump makes a vibrating noise some times not breaking just driving along … read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,964 satisfied customers
Just put two new sending units in and still have a gas gauge
Just put two new sending units in and still have a gas gauge of empty … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,895 satisfied customers
06 duramax blowing black smoke when towing or under
06 duramax blowing black smoke when towing or under acceleration and having engine code p0299 and p0101 … read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,625 satisfied customers
I have a 05 6.6 lly Duramax diesel I just purchased I can
I have a 05 6.6 lly Duramax diesel I just purchased I can start it with starting fluid it's kind of rough idle and smokes and Will down there and will not crank back the following day the same time bu… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
37,727 satisfied customers
2004 GMC 2500HD with 6.6 Duramax LLY. Driven through deep
2004 GMC 2500HD with 6.6 Duramax LLY. Driven through deep water, stalled, turned over but wouldn't start, now won't turn over. Removed air filter intake hose at throttle body to find that the engine i… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
2002 gmc duramax gmc: 2002gmc duramax just replaced all 8 injectors
2002gmc duramax just replaced all 8 injectors white smoke at an idle coming out of tube on the bottom of the motor it sorta looks like the things on fire never did this before we put the injectors in … read more
Michael Moore
Michael Moore
Team leader, bumper to bumper tech.
Associate Degree
2,870 satisfied customers
GMC Sierra 2500 HD: I have a 2005 gmc with duramax with 175,000
I have a 2005 gmc with duramax with 175,000 miles. Driving on freeway yesterday at 75 mph and very suddenly lost power and motor started knocking bad. Engine light also came on. All gauges were normal… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC G3500 SIERA 4X4: hello I have a 93 gmc 3500 6.5 turbo diesel
hello I have a 93 gmc 3500 6.5 turbo diesel seems like the idle is sticking a lil sometimes to about 11oo rpms if I shut it off and restart it will idle at 900 but as soon as you use the pedal it'll i… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
30,625 satisfied customers
gmc Sierra 2500: I have a 2008 gmc 2500 with a Duramax. The
I have a 2008 gmc 2500 with a Duramax. The truck has a magnaflow exhaust kit paired with a ppe chip as a dpf delete solution. I've got 230000km on the truck, mostly highway, and have never had an issu… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
675 satisfied customers
GMC K3500 SIerra: I have a 2006 GMC 3500 with 6.6 duramax.
I have a 2006 GMC 3500 with 6.6 duramax. I am changing out the injector pump. I have followed the alldata instructions up to taking out the intake crossover tube. I can't get the back 4 bolts off beca… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
675 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
GMC Sierra 2500 HD: I am working on a 2005 GMC Sierra 6.6 liter
I am working on a 2005 GMC Sierra 6.6 liter LLY. Problem is a long crank, sometimes starts, sometimes won't. I have changed fuel lines from fuel filter housing to fuel pump. Bypassed fuel tank with li… read more
Hal
Hal
owner/service tech
Vocational, Technical or Trade Scho
925 satisfied customers
GM: I have a 2005 gmc Sierra duamax 3500 diesel turbo truck.
I have a 2005 gmc Sierra duamax 3500 diesel turbo truck. The fuel pump was not working & was changed. The truck would not start. When the fuel filter was opened, there was a lot of water in it,& the m… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,823 satisfied customers
GMC C5500: HELLO I HAVE A 2007 GMC C5500 ROLLBACK WITH THE
HELLO I HAVE A 2007 GMC C5500 ROLLBACK WITH THE 6.6 DURAMAX AND I WAS DRIVING IT AND IT STARTED RUNNING ROUGH LIKE I HAD BAD FUEL,SO I TURNED IT OFF AND STARTED IT BACK UP AND IT RAN FINE FOR A FEW MI… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,823 satisfied customers
my 04 gmc 2500 hd 6.6 duramax diesel is smoking white smoike
my 04 gmc 2500 hd 6.6 duramax diesel is smoking white smoike and smells like diesel at idel and is missing and running rough… read more
Randy
Randy
619 satisfied customers
GM C5500: I HAVE AN 08 C5500 WITH 6.6 LITRE, LATELY WHEN IT
I HAVE AN 08 C5500 WITH 6.6 LITRE, LATELY WHEN IT REGENS IT SMELLS LIKE A LOCOMOTIVE AND IS EMITTING WHITE SMOKE,EVEN SMELLING UP THE CAB, IT EVEN REGENS MORE OFTEN THAN IT USED TO.NO DTC PRESENT ANY … read more
dghardysr
dghardysr
Parts Specialist
High School or GED
117 satisfied customers
Geberal Motors Gmc Truck: I have a 2003 gmc 2500 hd 6.6 duramax
I have a 2003 gmc 2500 hd 6.6 duramax desiel it runs great but wont start when its hot. Does anyone know what the problem could be? i have had it to the dealer and its not throwing any codes. its cran… read more
Paul M ASE Master
Paul M ASE Master
Automotive College
4,537 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