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I have a 2001 GMC with the 6.6 duramax diesel and I am
I have a 2001 GMC with the 6.6 duramax diesel and I am having a problem trying to pressure up the fuel system. When I open the bleed screw and prime till all the air is out then tighten and crank the … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
2013 GMC K2500 w/ 6.6L Duramax Diesel....cranks over
2013 GMC K2500 w/ 6.6L Duramax Diesel....cranks over normal,no start;hot engine.have pumped the manual fuel pump until hard. Cold start is normal. Any ideas? … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
P128r code on duramax, replaced fuel filter and now will not
p128r code on duramax, replaced fuel filter and now will not start … read more
EricFromCT
EricFromCT
Auto Technician
5,151 satisfied customers
Was having a problem with the GMC 3500 having an air leak,
was having a problem with the GMC 3500 having an air leak, so I had to keep Priming the fuel pump primer, but now it wont start even though it cranks and is primed … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
60,553 satisfied customers
I have a GMC C4500 Duramax diesel. The truck only runs if
I have a GMC C4500 Duramax diesel. The truck only runs if someone is pumping the top of the fuel filter by hand(pushing it up and down) and someone has to turn the key. Once, the person stops manually… read more
richard cole
richard cole
OWNER/OPERATOR
Associates (2 YRs)
195 satisfied customers
My 08 GMC Duramax cranks but no start. When I try to prime
My 08 GMC Duramax cranks but no start. When I try to prime the pump checking for leaks it will prime up. Please help. Artie… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
We changed the fuel filter housing and it will crank and
we changed the fuel filter housing and it will crank and run. let it run around an hour or so. once you shut it off and let it sit 30 minutes or so and it wont crank back up. once it sits over night i… read more
Jared D
Jared D
Shop Supervisor
Bachelor's
2,493 satisfied customers
I have a 6.6 duramax diesel lb7 it just died on me cranks
Hello I have a 6.6 duramax diesel lb7 it just died on me cranks won't start. Changed the fuel filter but looses prime right away kinda lost now… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
60,553 satisfied customers
Parked on a for 3 days. Started OK and was backing down when
Parked on a hill for 3 days. Started OK and was backing down when engine died, will not restart. … read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,675 satisfied customers
Just got an 05 duramax, was installing a extra fuel tank,
Just got an 05 duramax, was installing a extra fuel tank, and put whole in filler neck,and didnt finish install ,but drove truck. It ran fine for 5 miles then died. Sealed the whole,and it ran parked … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
60,553 satisfied customers
GM Sierra: Hello I have a 2005 GMC 2500 pick up 6.6 duramax
Hello I have a 2005 GMC 2500 pick up 6.6 duramax diesel, every now and then and not at any given time hot or cold it will hesitate on take off, heavy black smoke for 30 or 40 seconds, clear itself out… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
60,553 satisfied customers
GM: 2003 GMC 2500HD 6.6L DieselI am having problem starting
2003 GMC 2500HD 6.6L Diesel I am having problem starting it the only way it will start by giving it Starting fluid. ones you stop it will not start again. it runs good no problem does not smoke but is… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC gmc sierra: I have a 2001 gmc duramax w/144,000 miles on
I have a 2001 gmc duramax w/144,000 miles on it, still getting 20-22mpg but as started smoking while at an idle, no lights or codes of any kind, could I have lost an injector over the winter… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
13,347 satisfied customers
GMC Sierra 2500 HD Classic SLE: my 2005 GMC 2500HD 6.6L Duramax
my 2005 GMC 2500HD 6.6L Duramax fuel gauge is sticking. when i fill up, it on goes up to half tank, once driving down the road or turning the the truck off it finally goes back to full. could it be se… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC K3500 4x4: I have an 04 GMC 3500 4X4 with the 6.6LLY Eng
I have an 04 GMC 3500 4X4 with the 6.6LLY Eng with 123,000 miles. I bought it about two weeks ago and it has been running fine. Today I go to drive it and it starts like normal but then dies after abo… read more
Hal
Hal
owner/service tech
Vocational, Technical or Trade Scho
925 satisfied customers
GMC 2500hd 4x4: my 2001 gmc duramax diesel shut off after about
my 2001 gmc duramax diesel shut off after about 10 seconds of driving, it was parked at a 45 deg angle(hood up) for about 4 hours. i backed out into the street but then it shut off as i started to go … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
GM w4500: just changed the fuel filter on a 2004 gmc w4500
just changed the fuel filter on a 2004 gmc w4500 is there a fuel primer on this truck cant get it to start now… read more
Gary
Gary
Shop Foreman
Vocational, Technical or Trade Scho
292 satisfied customers
gmc 4500 kodiak: one of my guy filled my gmc kodiak 4500 with
one of my guy filled my gmc kodiak 4500 with regular gas. the truck was almost on empty when he did it then he drove it for about 2 miles to park it and it started to run poorly when close to parking … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,912 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

60,553 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

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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.

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