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My 1999 Denali has an intermittent starting problem that I
My 1999 Denali has an intermittent starting problem that I was trying to correct with the 30 minute anti-theft reset procedure but the telltale does not turn off after 10 or even 20 minutes...any sugg… read more
JFN1
JFN1
ASE Certified Technician
Vocational, Technical or Trade Scho
272 satisfied customers
Stalling when putting in reverse. Sometimes low idle when in
Stalling when putting in reverse. Sometimes low idle when in drive 2500 2001, 6.0L … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,831 satisfied customers
Am on a trip with 2004 Yukon and I am out west in Rockies. I
Am on a long trip with 2004 Yukon and I am out west in Rockies. I am hauling a trailer. On hills I just seem to lose all compression and the engine sort of stalls. I stopped at an O'Reilly Auto Parts … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
6,449 satisfied customers
Cam, I have a 2007 Yukon Denali that stalls intermittently
Hi Cam, I have a 2007 Yukon Denali that stalls intermittently when stopping. It just continues to loose RPM's until it stops. It has started (reluctantly) a couple times and required a long wait 2 oth… read more
Chris (aka-Moose)
Chris (aka-Moose)
GMC Technician
Vocational, Technical or Trade School
675 satisfied customers
1998 GMC Sierra 1500 4x4 5.7L automatic. L0171 lean bank And
1998 GMC Sierra 1500 4x4 5.7L automatic. L0171 lean bank And L0174 lean bank codes as well as L0404 EGR Failure. No apparent vacuum leaks. Intake Manifold gasket replaced in the past. 160,000 miles of… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
10,834 satisfied customers
GMC Yukon Hybrid: i own a 2011 yukon denali hybrid with 46K
i own a 2011 yukon denali hybrid with 46K miles at the time the auto was in an accident in nov. 2012. the struts were leaking but not replaced at the time. the rear end hopped over road speed bumps wi… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
Gmc Yukon Denali: My 2004 Yukon Denali act if it's trying to
My 2004 Yukon Denali act if it's trying to shut off while driving sometimes. I have replaced the throttle body and the wiring harness but the idle still sticks periodically. When I come to a stop it s… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,831 satisfied customers
Gmc Yukon Denali: My 2008 yukon Denali is jerking when it slows
My 2008 yukon Denali is jerking when it slows down and accelerates, the dealership suggested me to change engine mounts and it was done but problem does not go away but getting worse. what can be done… read more
BOBBYSS
BOBBYSS
Automotive Repair/Damage Investigator
Associate Degree
14,565 satisfied customers
GMC Yukon: I have a 2003 GMC Yukon, It has the 5.3 engine.
I have a 2003 GMC Yukon, It has the 5.3 engine. The engine is stalling sometimes when I release the throttle. Volt guage drops to about 13 volts or lower and then recovers to 14+ volts. Doesn't quit e… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Sierra Denali: Intermittant Low/Rough Idle - 2004 GMC Sierra
Intermittant Low/Rough Idle - 2004 GMC Sierra Denali w/Quadrasteer, 6.0L, 163k. Truck [seams to] run normal 99% of the time. On occasion/intermittant, at idle, engine idle speed drops from 6-700 to ab… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
23,904 satisfied customers
GMC youkon denali: My mom has a 2007 gmc yukon denali that
My mom has a 2007 gmc yukon denali that she has never had any problem with until sat. it died and had to crank for a while before starting then drove 120 miles home then the engine light came on after… read more
Eric
Eric
Retired
N/A
33,582 satisfied customers
GMC Yukon Denali: I have a 2007 Yukon Denali and every once
I have a 2007 Yukon Denali and every once in awhile when I'm stopping ogoing slow in traffic the car stalls. had the box cleaned, put injector cleanerin and filled up with high test… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
gmc yukon denali: i have a 99 yukon denali ... it stalls at
i have a 99 yukon denali ... it stalls at stops signs when the ac is on. it idles down then cuts off... it also happens with sharp turns but it starts right back up. the rear ac doesnt blow cold eithe… read more
Amedee
Amedee
Automotive Consultant
Vocational, Technical or Trade Scho
19,489 satisfied customers
GMC Yukon Denali: I have a 2012 GMC Yukon Denali. On two separate
I have a 2012 GMC Yukon Denali. On two separate occasions the truck has stalled when slowing to stop at a stop sign. Both times have been after the truck sat for a couple hours. In addition, there has… read more
Ivan
Ivan
Automotive Instructor
Bachelor's Degree
4,857 satisfied customers
GMC Yukon SLT: i have a mass air flow sensor code with an engine
i have a mass air flow sensor code with an engine light comming on. new plugs wires and airflow sensor. garage flushed injectores when vehicle had very little fuel in the tank. Symptoms are engine spu… read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
8,021 satisfied customers
GM Sierra: Hello I have a 99 Sierra with a bit of a problem.
Hello I have a 99 Sierra with a bit of a problem. During the summer it starts up fine and idles normally. But when the temp start's to drop outside, it start's normally but idles erratically until the… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
29,894 satisfied customers
GMC Yukon 4x4: I have a 99 yukon 160,000 miles. Recently started
I have a 99 yukon 160,000 miles. Recently started stahling out when accelerating rapidly. I have changed the tps, dist cap, checked my pressure from the fuel pump, inspected and cleaned my mass air fl… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,831 satisfied customers
GMC Sierra K1500: I have a 1999 GMC Sierra K1500 with a 5.3L.
I have a 1999 GMC Sierra K1500 with a 5.3L. On initial startup the engine runs fine and shifts fine, but after the engine is hot and you shut it off for 15 to 30 minutes and restart it he engine hesit… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,831 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

675 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

285 satisfied customers

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

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

George H.

George H.

ASE MasterTechnician

230 satisfied customers

15+ Years ASE Master Technician with Level 1 Certification

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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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