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Engine died after driving 45 minutes pulling a camper. got
engine died after driving 45 minutes pulling a camper. got towed off the freeway. engine started about 20 minutes later and drove fine back home. coolant temp was rising and turned off ac. still rose,… read more
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Ethan Lankford
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Tony McCarthy
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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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I have a 2001 Yukon Denali XL and I have no heat control. If
Hi, I have a 2001 Yukon Denali XL and I have no heat control. If I leave the temperature at maximum I have constant heat if I turn it down to a tolerable temperature it fades in and out from hot to co… read more
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sprinkles08
sprinkles08
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I have a similar issue with my a/c not shutting off. My
Hello, I have a similar issue with my a/c not shutting off. My newly licensed teen and her friend went to the drive-ins to see a movie and they couldn't get it to turn off. I looked online and found t… read more
Ron Z.
Ron Z.
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Cooling fan issue. Just read Ron Z's responses to another user. 05 yukon Denali. While sitting idle, over heated, started dumping AF. Just returned from a 45 mile mountainous trip. No issue noticed on… read more
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2006 Yukon Denali Coolant Temperature Hot comes on display
2006 Yukon Denali Coolant Temperature Hot comes on display then goes away, seems to not be using any of the reservoir up near the firewall. If I rev the engine while the warning is on the temp goes do… read more
JFN1
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GM denali: I have 2007 GMC denali truck with a 6.2 engine from
I have 2007 GMC denali truck with a 6.2 engine from day one the engine has run around 210 degrees. What temp thermostat does it have? and can I change to a 160 thermostat. I have long tube headers, co… read more
Gary
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GMC Sonoma: My GMC Sonoma temp is running around 197, but the
My GMC Sonoma temp is running around 197, but the coolant does not get hot, I have changed the t-stat but that has not made a difference, I can drive around for an hour , the radiator hoses are warm b… read more
Gary
Gary
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GMC yukon denali xl all wheel dr: I have a 2004 Yukon Denali
I have a 2004 Yukon Denali XL with 53,714 miles, it was purchased new in October 2004. On occasion I had thought that I hit the heated seat buttons on the drivers side and turned on the heated seat by… read more
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GM Yukon XL Denali: Hi John, Im reviewing your steps to
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Hello I own a USA 2005 Yukon Denali XL VIN 1GKFK66U55J167834. Recently had water pump replaced. It never over heated the engine but engine was running higher than normal for at least 15 minutes before… read more
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GMC Yukon XL 1500 Denali: I have a 2007 GMC Yukon Denali XL
I have a 2007 GMC Yukon Denali XL that should be able to easily tow our camper (that is why we bought it). We took it out for the first time and it stalled 3 times - each as we slowed to a light or pa… read more
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GMC Savana 3500: 2004 GMC Savana Cargo 3500, 6.0 engine.
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GMC Yukon XL 1500 Denali: I have a 2006 Yukon XL Denali. When
I have a 2006 Yukon XL Denali. When the outside temperature gets above 85, it experiences electrical problems. The interior gauges, radio, ac, power windows, power locks, pretty much everything, turns… read more
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I have a 93 gmc 3500 6.5turbo and it over heats when i run
I have a 93 gmc 3500 6.5turbo and it over heats when i run the ac or haul a heavy load about 215-230 ive changed the thermostat several times… read more
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GMC Yukon XL Denali: Hey GM Tech. I just purchased a 2004
Hey GM Tech. I just purchased a 2004 Yukon XL Denali. Its a Houston, TX vehicle, so it did not come with a block heater. I also think the thermostat is a summer one b/c there is no warm/hot air after … read more
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,823 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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