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Fouled 2 plugs last week and 1 yesterday. Shows all kind of
Fouled 2 plugs last week and 1 yesterday . Shows all kind of different codes. Could this be catalytic converter stopped up. This is on a ‘13 Denali Yukon with 175000 miles. It showed a bad o2 sensor o… read more
Roy
Roy
shop foreman
Associate Degree
4,483 satisfied customers
Have a GMC Yukon Denali XL with the 6.2. Has 117K and
Have a GMC Yukon Denali XL with the 6.2. Has 117K and running warmer than normal pulling my boat on 100+ degree days. Looks like about 225 degrees on gauge- usually 200. Fans are running fine- Thermos… read more
Chris (aka-Moose)
Chris (aka-Moose)
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Vocational, Technical or Trade School
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I have a 2001 Yukon XL Denali and I have recently got a lot
Hi, I have a 2001 Yukon XL Denali and I have recently got a lot of work done to it (new idle arm, pitman arm, hub assembly, upper ball joints, tire rods etc. The problem that I have is vibration from … read more
JFN1
JFN1
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Pretty sure I have a grounding issue on my 2008 GMC yukon
Pretty sure I have a grounding issue on my 2008 GMC yukon Denali XL. I've replaced the negative battery cable with a new one from GM, cleaned the terminals on the 175 amp mega fuse, added an additiona… read more
David Craig
David Craig
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I have a 2007 GMC Yukon Denali with low oil pressure at an
I have a 2007 GMC Yukon Denali with low oil pressure at an idle. We just put in a new oil pump and pressure still drops to zero on idle. Truck runs perfect driving with Rpms up but when slowing down o… read more
Gary
Gary
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GMC Yukon Denali XL: Re: 2004 GMC Yukon Denali XL.SERVICE
Re: 2004 GMC Yukon Denali XL. SERVICE STABILITY, SERVICE AIRBAG, are both displayed. Also, the ABS light and a TC LIGHT, with a line through it. All came on at the same time. When I hit the gas peddle… read more
Pete
Pete
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GM denali xl: , I need to replace the commutateur interruptor
Hi, I need to replace the commutateur interruptor on 1994 GMC Denali xl. Cannot find even after removing the big black case cover behind/above break pedals or the one behind steering wheel. Where is i… read more
JFN1
JFN1
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GMC Yukon XL 1500 Denali: investigating my "Engine Power Reduced"
investigating my "Engine Power Reduced" and "Stability Sys Disabled" messages. 2004 GMC Yukon XL Denali… read more
Gary
Gary
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GMC Yukon: 2006 GMC YUKON DENALI XL With a 146K Rear Heat
2006 GMC YUKON DENALI XL With a 146K Rear Heat & Air stops working all of a sudden, front A/C and Heat work fine. There is a great forum on TAHOEYUKONFORUM.COM that talks about this problem is detail.… read more
Dave Nova
Dave Nova
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GMC Yukon SLT: I drive a 2008 GMC yukon. I was recently involved
I drive a 2008 GMC yukon. I was recently involved in an accident on the interstate - 3 cars. Ultimately a heating and air van ran up the passenger side of my truck from behind which sent me into a spi… read more
Ron Z.
Ron Z.
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2013 Yukon Denali (Hybrid) While driving with the rear
2013 Yukon Denali (Hybrid) While driving with the rear passenger bucket seat folded down my wife noticed a burning smell so she pulled to the side of the road. She found the burning smell was coming f… read more
Pete
Pete
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GMC Yukon XL Denali: 2007 GMC Denali XL 6.2 starter occasionally
2007 GMC Denali XL 6.2 starter occasionally won't crank. Several times in the last few days, when the key is turned, the starter won't click or even act like it is trying to engage. The battery tests … read more
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Pete
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General auto certifications
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SUV jerks when driving and seems to lose power. Happened at
SUV jerks when driving and seems to lose power. Happened at highway speed hen slowed down to stop and it almost stalled. Jerked again at acceleration. Stopped at destination and took to shop - that tr… read more
Chris (aka-Moose)
Chris (aka-Moose)
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GMC Yukon Denali: my 2008 yukon denali has a hesitation when
my 2008 yukon denali has a hesitation when I press the gas. For example, if I am at a stop light and turn right on a street and maybe I need to speed up to get with the flow of traffic my denali hesit… read more
goodwrench9124
goodwrench9124
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GMC: I own a 2007 Yukon XL Denali. I pull a 29 foot Camping
I own a 2007 Yukon XL Denali. I pull a 29 foot Camping Trailer. I have had no problem pulling whatsoever until recently. I was pulling the other nite in mountains west of Denver, made through Eisenhow… read more
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GM 2012: I have a 2012 Sierra 1500, and the driver side mirror
I have a 2012 Sierra 1500, and the driver side mirror will not adjust properly. It stops short of allowing the driver to view up and out to see all of the traffic. Since I regard being limited to seei… read more
Doug
Doug
Head technician
High School or GED
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GM Yukon: my Yukon hybird makes a noise that sounds like a
my Yukon hybird makes a noise that sounds like a motor running the window up and down what could this be?… read more
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Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,832 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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