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I got a 1997 GMC C1500 with a Vortec 5.7. when i accelerate
gary I got a 1997 GMC C1500 with a Vortec 5.7 . when i accelerate it wants to backfire and hesitate and has no power. I just replace the fuel pump and i get a PSI of 50 it start ok and idols just fine… read more
Mike
Mike
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My 2001 Yukon XL 8.1l hesitates when it's cold and I
My 2001 Yukon XL 8.1l hesitates when it's cold and I accelerate. It idles at 600 Rpm. I am wondering if that is too low for my truck and if I could have a bad fuel regulator? I tested the fuel pressur… read more
Ron
Ron
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Vocational, Technical or Trade Scho
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I put a tuneup on our 2000 gmc savanna van, the firing order
I put a tuneup on our 2000 gmc savanna van, the firing order in the book says 18436572 which has always been the firing order on most chevys I have owned. The van is now sputtering, and has now power.… read more
kalamykid
kalamykid
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I have a pesky P0300 code on my Truck and its not going
I have a pesky P0300 code on my Truck and its not going away. I originally had P0301 and P0306 so I replaced the appropriate coils on Cylinder 1 and 6. I have replaces the spark plugs and the cables. … read more
Roy
Roy
shop foreman
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2008 GMC Acadia SLT 3.6 140K miles Problem is i keep getting
2008 GMC Acadia SLT 3.6 140K miles Problem is i keep getting P0171 and P0174 lean codes. I live in IN and it has been cold. CEL day it was 12 deg. It also had a throttle body code. so i removed air in… read more
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Dan
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GMC Sierra: I have a 2002 GMC Sierra. It had a 4.3L V6 and
I have a 2002 GMC Sierra. It had a 4.3L V6 and I installed an 04 5.3 in it. I am currently having remarketablly... only 2 issues LOL. The first one is check engine code(s). I believe they are related … read more
Ron
Ron
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GMC Sierra: 2000 GMC Sierra SLE 5.3L V8. The MIL light is not
2000 GMC Sierra SLE 5.3L V8. The MIL light is not on. I have a hard time turning the truck on. I changed the fuel pump, fuel filter, TPS, Idle Control Sensor, new battery, new iridium spark plugs, i c… read more
Ron
Ron
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gmc yukon: i have a 2002 gmc yukon 5.3L 97,000 miles FLEX FUEL
i have a 2002 gmc yukon 5.3L 97,000 miles FLEX FUEL throwing p0171 and p0174 code is it a 02 sensor or the maf sensor or the intake manifold gaskit which is more likely… read more
Ron Z.
Ron Z.
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GMC Savana 3500 LT: i have a 2003 gmc savanna 3500 with a 6.0l
i have a 2003 gmc savanna 3500 with a 6.0l the truck runs ok it has a ltft of 25 both banks and when you step on throttle pedal it revs fine but when you step on brakes it kills fuel all fule pressure… read more
Gm Tech (Cam)
Gm Tech (Cam)
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Vocational, Technical or Trade Scho
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GMC SAVANNA: HAVE A GMC SAVANNA 6.0 LITER, CEL LIGHT ON ,RANDOM
HAVE A GMC SAVANNA 6.0 LITER, CEL LIGHT ON ,RANDOM MISFIRE CODES ONLY,WHEN YOU STEP ON GAS BOGS DOWN AND HARD TO GET OVER 30 MPH,ANY KNOWN CAUSES ON THIS MOTOR, ITS A 2006… read more
Dave Nova
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GMC jimmy: I am working on a 96 gmc jimmy runs ok at idle but
I am working on a 96 gmc jimmy runs ok at idle but when put in gear and try to go down the road it jerks and will not accelerate and sets random misfire code if maf is unplugged it will run better but… read more
Gary
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GMC Yukon Denali 4x4: I have a 2001 GMC Yukon Denali 6.0 AWD.
I have a 2001 GMC Yukon Denali 6.0 AWD. I believe it is the LQ4 GenIII engine. I have a couple of issues with it. One is ongoing with a slightly rough idle or on a cold srt up. Somethings that I have … read more
Gm Tech (Cam)
Gm Tech (Cam)
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Vocational, Technical or Trade Scho
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i have a 1999 GMC savana 3500 5.7 came to us because it over
i have a 1999 GMC savana 3500 5.7 came to us because it over heated, found out it had a blown head gasket, pulled engine out replaced gasket and both heads (had cracks) put every thing together also r… read more
Dave Nova
Dave Nova
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GMC C1500 Sierra 4x2: Hello I have a GMC C1500 1998 5.7 2 wd
Hello I have a GMC C1500 1998 5.7 2 wd I just replace the Cat Converter Plugs and wires and Dist cap and rotar, and Coil I am getting muti miss fire readings. I just started Saturday when I punched it… read more
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GMC 1500 Series: Im working on a 2000 1500 5.3. Motor idles
Im working on a 2000 1500 5.3. Motor idles but just falls on its face if i try to accelerate. If i slowly aply fuel it will run smooth and i can get it to about 50 mph. I changed all o2 sensors bcuz t… read more
Dave Nova
Dave Nova
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GMC K1500 4x4:Getting codes P0131 P0137 P0151 P0157
1996 GMC 5.7 automatic 4x4. Getting codes P0131 P0137 P0151 P0157 & sometimes codes P0171 P0174. Runs fine when first started for 10-15 miles then runs rough & loses power,let it set for little while … read more
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GMC Savana 3500 LT: Hi I have a 2000 GMC savanna 3500 with
Hi I have a 2000 GMC savanna 3500 with a 5.7 vortec it has the spider injection. i installed a new fuel pump about 30k ago hoping to cure a problem my van was having witch seemed to be not getting fue… read more
Dave Nova
Dave Nova
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GM 3500: 1996 gmc 3500 350ci. truck wont start. No codes stored,
1996 gmc 3500 350ci. truck won't start. No codes stored, checked spark and its strong. Checked fuel and theres flow and pressure, 68psi when pump is running then it drops right to 55psi when the pump … read more
Dave Nova
Dave Nova
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Associate Degree
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,837 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

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GCM master tech over 25 years

Dave Nova

Dave Nova

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929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

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705 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

291 satisfied customers

18+yrs experience. State Inspector & GMC Diagnostics/Repair

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

234 satisfied customers

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

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