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Replaced fuel filter and fuel pump is good, and still have
Replaced fuel filter and fuel pump is good, and still have the same problem. When I start it it starts but when I go into drive from idle it seems like something clogged or choking so I have to pump t… read more
Mechanic01
Mechanic01
4,063 satisfied customers
GMC. I have a 2011 GMC Yukon LT with a 5.3 liter flex fuel.
I have a 2011 GMC Yukon LT with a 5.3 liter flex fuel. Was having trouble starting it when cold. My mechanic diagnosed it and it had 80 lbs of fuel pressure after shutting it off. He diagnosed the fuel pressure relief valve on the fuel pump as bad causing the fuel injectors to drip causing a flooding situation causing it not to start. He replaced the fuel pump with and AC delco unit from our local GM dealer. He is not sure this solved the problem. He states it still has 80 lbs of fuel pressure when shut off warm but states it goes to "normal" levels within a half an hour. He is letting me try it for a couple of weeks before paying him. Is this normal or is there something else wrong. It has started so far but I just got it back. … read more
Todd Audette
Todd Audette
Automotive Technician
Vocational, Technical or Trade School
363 satisfied customers
Starts but when you step on gas hard boogs spits and
starts but when you step on gas hard boogs spits and sputters will finally pick up rpms, if you push on the gas lightly rps go ok no sputter or bogging. gmc 5.7, 1999 gmc yukon … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
We have a 2007 GMC Yukon Denali xl, trying to locate the
We have a 2007 GMC Yukon Denali xl, trying to locate the fuel pressure regulator … read more
Anthony
Anthony
Master Automobile Technician
Vocational, Technical or Trade Scho
8,789 satisfied customers
Well, I've replaced spark plugs, wires, disttributor cap and
well, I've replaced spark plugs, wires, disttributor cap and when I goto start the car the car almost stalls … read more
tim37857
tim37857
Mechanic
High School or GED
71 satisfied customers
Put a new fuel pump in and its still not starting up check
Put a new fuel pump in and its still not starting up check the relay fuse and its clicking, what else could it be a 2002 Yukon xl … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
I have a 2007 GMC Yukon XL Denali w/6.2 liter Vortec.It has
I have a 2007 GMC Yukon XL Denali w/6.2 liter Vortec.It has 125K Mi. At idle, the oil pressure gauge goes down to the red zone when the oil is at operating temp. We use Valvoline Max Life semi synthetic 5-30. Recently while towing our camper trailer up a pass, we were running at around 5500 RMPs and the low pressure warning came on just as we hit the top of the pass. It then stopped sounding and was not heard again on the trip of over 200 miles. I did not hear any valves clattering. My GMC dealer took it in and says it needs a new oil pump as their external pressure gauge reads that it is around 8 PSI at idle with warmed up oil, and it should be closer to 20 PSI. This same dealer installed an oil pump about 18 months ago for the same reasons. They do not have an explanation as to why the oil pump has failed after 25K miles. Any ideas? … read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
Gmc yukon: 2002 gmc yukon xl 5.3 flex fuel no codes engine
2002 gmc yukon xl 5.3 flex fuel no codes engine stalls will restart runs for 1 to 2 miles stalls again fuel pressure 45 psi when running 10 psi when stalls changed fuel filter and fuel pump relay… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
we just replaced the fuel pump and fuel filter, we can hear
we just replaced the fuel pump and fuel filter, we can hear the pump working but fuel isn't getting to the injectors or starting on a 2001 GMC yukon 4wd. what is the next step to get it working? It ha… read more
supermechanic
supermechanic
Service consultant
Vocational, Technical or Trade Scho
10 satisfied customers
GMC: 97' GMC Yukon GT, runs fine until putting heavy load on
97' GMC Yukon GT, runs fine until putting heavy load on engine going up a steep hill, have changed fuel pumps more than one & fuel filter numerous times, think now it is actually injector problem, do … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
GMC Yukon XL 1500: 2002 gmc Yukon Xl 4x4 getting 9 miles per
2002 gmc Yukon Xl 4x4 getting 9 miles per gallon new fuel pump pressure regulator plugs and filters new cat converters runs great no codes help please… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
gmc yukon xl: 2001 gmc yukon xl fuel pump wires burn out on
2001 gmc yukon xl fuel pump wires burn out on pump change pump with new one but tkuck want start also put new fuel pump relay on… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,588 satisfied customers
GM Yukon XL: Hi, My 2003 Yukon xl was parked on a steep bank
Hi, My 2003 Yukon xl was parked on a steep bank (maybe 25-30 degree slope) and in idle when it stalled after sitting there a couple minutes. Gas had been near empty but not in danger of running out. W… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Yukon Denali: I own a 2003 GMC Yukon Denali XL and while
I own a 2003 GMC Yukon Denali XL and while driving the car cut off what's going on? I moved a relay and put it back on and it started.… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
GMC Yukon slt: My 1997 GMC yukon runs very well but sometimes
My 1997 GMC yukon runs very well but sometimes just dies and wont start while im driving down the road ,Im thinking fuel pump or filter but a friend mentioned ignition switch or something of that natu… read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
GMC Yukon 4x4: Good day, I have a 1998 ( prod date 03/98)
Good day, I have a 1998 ( prod date 03/98) GMC Yukon with a 5.7 that has been sitting awhile, trying to start it after some body work and cannot get it to fire off unless we feed it starting fluid, co… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
GMC Yukon Denali: 2002 gmc yukon denali 6.0. upon starting
2002 gmc yukon denali 6.0. upon starting no idiot lights, tach, speedo, fuel, or temp. shifts hard into gear but slips as if in high gear. after awhile lights cycle, gauges work and the truck runs fin… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
GMC Yukon XL 2500 SLT: 2002 GMC Yukon XL 2500 w/ 8.1L engine
2002 GMC Yukon XL 2500 w/ 8.1L engine cuts out. Did a Schrader valve check and the pressure was at 50+ and then rapidly dropped off. Had the Crank sensor and front pump about 40K miles ago. Replaced t… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,796 satisfied customers
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Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,796 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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ASE Master Certification. GM World Class Certification

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Chris (aka-Moose)

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16 years of experience

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Ron Z.

- GMC Tech -

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JFN1

JFN1

ASE Certified Technician

270 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

228 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

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