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I have A 2005 GMC Sierra 2500 Duramax Diesel. Wont start
I have A 2005 GMC Sierra 2500 Duramax Diesel . Wont start after it sits over night. Replaced all fuel lines, new fuel filter housing, after all this it started every time for 4 days in a row. On the 5… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
865 satisfied customers
I have a 2005 Gmc kodiak with 6.6 duramax - it keeps
I have a 2005 Gmc kodiak with 6.6 duramax - it keeps quitting and not throwing a code - on snap on scanner I see the the crank sensor and some times cam sensor show misses - I have replaced cam and cr… read more
Chris Carr
Chris Carr
Ase Master
Ase Master Tech
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P0087 FUEL RAIL PRESSURE LOW 2006 GMC C5 6.6 DIESEL. TRUCK
P0087 FUEL RAIL PRESSURE LOW 2006 GMC C5 6.6 DIESEL … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,050 satisfied customers
2007 gmc 6.6 lmm lose power. I put new fuiel injector pump
2007 gmc 6.6 lmm lose power . I put new fuiel injector pump new fuiel pressure sensor, new fuiel pressure distributor . still no power it only goes to 2400 rpms … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
865 satisfied customers
09 2500 gmc no mods. 84,000. Pulling 14000# fifth wheel.
09 2500 gmc no mods. 84,000. Pulling 14000# ***** wheel. Have pulled it LOT. Cruz on engine temp 200 Trans 199. Lost 75% powder engine lite on. Set for 1/2 hr ran. But lite still on. Next am ran fine … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
865 satisfied customers
I have a 2012 gmc 2500 6.6 duramax in my shop, it is a no
I have a 2012 gmc 2500 6.6 duramax in my shop, it is a no stsrt but will crank over. Customer drove truck ,stopped shut truck off ,went to re start and would crank but not start. I have no 12 power at… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,050 satisfied customers
I have a 2000 gmc c6500 with a 7.4 l gas engine. This unit
Hello i have a 2000 gmc c6500 with a 7.4 l gas engine. This unit will only do about 2500 rpm and start breaking up. That is right about the shoft point so jr is hard to drive. Low power. I cleaned the… read more
Dan
Dan
Dealership Technician
Associate Degree
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I have a 2004 gmc with a 6.6 durmax have a code p1093. I'm
I have a 2004 gmc with a 6.6 durmax have a code p1093 . I'm having an issue with lack of power. checked egr and has been replaced. on test drive the p1093 popped up and I'm woundering if this has to d… read more
Pete
Pete
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General auto certifications
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It is actually a GMC Duramax Diesel is this still the right
It is actually a GMC Duramax Diesel is this still the right place … read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
865 satisfied customers
Dtc p1093 2004 gmc 2500hd 6.6 liter when code lights up
dtc p1093 2004 gmc 2500hd 6.6 liter when code lights up power goes down 85 percent so I stop read & erase and will run better as long as I don't throttle up to much not sure if our -15 degree cold is … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
I have a 05 gmc 2500hd with 6.6l duramax it will only rev up
I have a 05 gmc 2500hd with 6.6l duramax it will only rev up to 2200 rpm once warmed up. I thought it was a fuel issue and have drained it all but still running badly no power. It is not putting out a… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,050 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
865 satisfied customers
GMC C4500: WHERE IS THE FPRV ON A 2005 C4500 TOPKICK DURAMAX.
WHERE IS THE FPRV ON A 2005 C4500 TOPKICK DURAMAX. HAS A P1093 LOW RAIL FUEL PRESSURE CODE.… read more
Gary
Gary
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Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 3500 HD SLE: Running uphill my 2003 Duramax 6.6
Running uphill my 2003 Duramax 6.6 diesel bogged down, refusing to rev over 2000 RPM even when I pulled over and took it out of gear. after I got over the hill I parked it and had coffee, then it revv… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
Hi I have a 2007 gmc flat bed 6.6 motor 5500 duramax diesel
Hi I have a 2007 gmc flat bed 6.6 motor 5500 duramax diesel the truck goes onto limp mode ,its rest its self after 5 to 10 min and does it again after a while ,while the check engine light goes on it … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,050 satisfied customers
GMC 2500 Series: I have a 2005 GMC sierra 2500 series ,duramax
I have a 2005 GMC sierra 2500 series ,duramax 6.6 diesel 4x4,,as I was acelarating onto a 4 lane,it went about 200 yards and the fuel shut off,,the motor started vibrating very bad,then it quit runnin… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,050 satisfied customers
GMC C2500 4X4: HELLO, I HAVE A 06 2500 4X4 GMC W/ 6.6 DURAMAX
HELLO, I HAVE A 06 2500 4X4 GMC W/ 6.6 DURAMAX ALL STOCK 80K MILES. TRUCK STARTED AND RAN FOR 2 MINUTES AND DIED. CHANGED FILTER AND PRIMED FUEL SYSTEM ENGINE WILL START AND RUN FOR 5 SECONDS AND DIE.… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
32,050 satisfied customers
GM sierra: when im driving, at low speeds if i hammer down
when i'm driving, at low speeds if i hammer down on the throttle, it starts to accelerate and a total loss of power, engines roaring and then a black puff of smoke out the tail pipe and i'm off again?… read more
John
John
MASTER AUTOMOTIVE TECHNICIAN
2 YEARS COLLEGE
9,106 satisfied customers
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

32,050 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

865 satisfied customers

24 years of experience diagnosing & repairing

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

264 satisfied customers

GM, GMC, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics

Mike S.

Mike S.

ASE Certified Technician

248 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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