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I have a 1998 GMC Sierra k1500 with 5.7 liter. When the
Hi. I have a 1998 GMC Sierra k1500 with 5.7 liter. When the engine gets up to temperature and shut it off for 30 minutes it seems to vapor lock. I can't get it started unless I either let it cool clea… read more
K. Wiggins
K. Wiggins
ASE Certified Technician
Associate Degree
3,980 satisfied customers
Its a v6 87 and it surges really bad at idle. Not sure x 2.
its a v6 87 and it surges really bad at idle JA: How many miles are on the GMC? What size is the engine? Customer: not sure x 2 JA: What is the model/year of your GMC? Customer: 87 v6 JA: What year is… read more
Eric
Eric
Retired
N/A
38,804 satisfied customers
2002 GMC Duramax injectors replaced at 100,000 miles.It has
2002 GMC Duramax injectors replaced at 100,000 miles.It has started putting out white smoke while it is idling. Oil pressure holds good and there does not seem to be any fuel in the oil. Truck runs ve… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
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When driving high speed and let off the gas the engine
when driving high speed and let off the gas the engine starts to miss and bucking, I have replaced just about everything you can think off, … read more
adam warren
adam warren
Master auto tec
233 satisfied customers
I have a 2004 GMC Yukon Denali XL that started to misfire
I have a 2004 GMC Yukon Denali XL that started to misfire once my battery began to die. This was about 3 days ago and now it's getting worse. … read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
7,959 satisfied customers
I let it run out of gas two weeks ago EVERY sense then it
I let it run out of gas two weeks ago EVERY sense then it shuts off like fuel pump over heats then wen it cools off like hours later it starts​ right back wen I turn it off same thing again … read more
Reggie Whiddon
Reggie Whiddon
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Vocational, Technical or Trade School
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2000 Jimmy 4.3 Starts, idles a bit rough, not bad. any
2000 Jimmy 4.3 Starts, idles a bit rough, not bad. any attempt to accelerate the engine bucks misfires, almost stalls...the scanner reads rich/lean at idle on both o2 sensors but when throttle is put … read more
David Craig
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My 2008 Yukon XLT Denali light is coming on oil pressure low
My 2008 Yukon XLT Denali light is coming on oil pressure low turn of engine what do I do … read more
Master Auto Tech.
Master Auto Tech.
High School or GED
546 satisfied customers
My 2004 Yukon has a vibration in it. recently had the
my 2004 Yukon has a vibration in it. recently had the transmission replaced 4k miles ago...vibration feels like going over rumble strips on the road .tires are all balanced and good ...I … read more
Mike V.
Mike V.
technician
Subaru and Nissan factory training.
30,362 satisfied customers
Its Neil just wanted to let you know that the truck is
Hey Kim its Neil just wanted to let you know that the truck is running great thank you for your help but I have another issue now I am getting really crappy gas mileage I have a 30 gallon tank and at … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,968 satisfied customers
GMC Sierra 1500: I my 2004 gmc sierra 4.3 2wd to walmart to
I my 2004 gmc sierra 4.3 2wd to walmart to get the oil changed. when I went to pick it up it wouldn't start. I narrowed it down to the fuel pump. I thought it was a bad fuel pump so I replaced the pum… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GM arcadi: im Larry Im having big problems with a wrecked
Hello im Larry Im having big problems with a wrecked 2014 gmc arcadia denali i purchased not any engine damage during wrteck slight fram damage on front but any way it has the 3.6 v6 i have had it in … read more
Chris (aka-Moose)
Chris (aka-Moose)
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Vocational, Technical or Trade School
813 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 C2500 Sierra XC 4x2: I have a 2004 GMC that is loosing
I have a 2004 GMC that is loosing prime and has a leak near the wire on the fuel filter housing? The Dealer says i need to replace the housing? 2nd issue is the dealer once again is telling me that al… read more
Gary
Gary
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Vocational, Technical or Trade Scho
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GMC Sierra 1500 Classic SLT: my 2005 gmc sierra 5.3 l is hard
my 2005 gmc sierra 5.3 l is hard to start sometimes no pattern to problem. I have replaced the battery,fuel pump system, starter, and fuel pump relay. no check engine light on or codes the mechanics h… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra 1500: 1995 gmc sierra 5.7 tbi enigne has 30,000
1995 gmc sierra 5.7 tbi enigne has 30,000 miles since swap hi guys im in a bad situation right now my truck dont run right. last night i was at a light and she just shut down completely i thought mayb… read more
proautotech
proautotech
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GMC Envoy XUV: I have a 2004 GMC Envoy XUV. About 2 weeks
I have a 2004 GMC Envoy XUV. About 2 weeks ago I have the oil changed. Since the day after that I have been having an intermittent problem.Sometimes the car starts and sometimes it won't. When it does… read more
Gary
Gary
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GMC K3500 Sierra 4x4: 2004 gmc 3500 6.6 duamax,after using
2004 gmc 3500 6.6 duamax,after using a bit, will stop at light, will blow some blushish black smoke, then get home back up blow smoke and put into park and blow smoke.this does not happen all the time… read more
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,968 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)

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JFN1

JFN1

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Don - Mo Lurch

Don - Mo Lurch

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

Mike S.

Mike S.

ASE Certified Technician

243 satisfied customers

GMC N.A.I.S.E. Certified Auto-Mechanic

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