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Not shifting gears or shifts hard and also leaks oil. Im
not shifting gears or shifts hard and also leaks oil … read more
Tim\u0027s Auto Repair
Tim\u0027s Auto Repair
Mechanic
High School or GED
15,083 satisfied customers
My son tried to install a new navigation that he got from
hey, my son tried to install a new navigation that he got from Ebay. turns out that the navigation was stolen and it showed Theft lock. when he tired to put back the original one the car is not starti… read more
Chris Walker
Chris Walker
ASE
73 satisfied customers
After disconnecting and reconnecting the battery I have a
After disconnecting and reconnecting the battery I have a clicking noise coming from the right rear in my GMC envoy xl when starting. It goes away after 10 -30 seconds … read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,117 satisfied customers
I have a 2004 GMC Yukon Denali--I will be replacing the oil
I have a 2004 GMC Yukon Denali--I will be replacing the oil pan gasket soon, but I've started to notice a vibration sound when I'm in drive, foot on the brake, at idle. I don't feel it in the steering… read more
Eric
Eric
Retired
N/A
37,946 satisfied customers
Same car, 2007 gmc envoy denali. same problem. changed the
same car, 2007 gmc envoy denali. same problem. changed the oil pressure sensor, worked great until i took it on the highway and revved it up, then it did it again with the new sensor. i suspect too mu… read more
Tim\u0027s Auto Repair
Tim\u0027s Auto Repair
Mechanic
High School or GED
15,083 satisfied customers
My Denali will not start due to the alarm. Battery amps are
My Denali will not start due to the alarm. Battery amps are good. I have tried diconnectin and reconnecting the battery. Still wont start .Its an Xl … read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
I have a '10 Yukon XL Denali with 135K miles. I slowed to a
I have a '10 Yukon XL Denali with 135K miles. I slowed to a stop sign, towing a trailer, on my way to refuel with about 1/8 tank. Motor shut off when I stopped and wI'll crank over but not turn back o… read more
JOHN aka Eauto
JOHN aka Eauto
self employed
High School or GED
19,984 satisfied customers
Oil leaking in engine. I have a 2007 Yukon GmC Xl Denali,
Oil leaking in engine. I have a 2007 Yukon GmC Xl Denali … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
My truck has about 160k miles 1990 GMC Knock in motor that
My truck has about 160k miles 1990 GMC Knock in motor that comes and goes sounds like a timing knock and missing Extreme loss of power, rough motor some backfire barely pulled hills to get home so i t… read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Yukon XL Denali: , I have a 2003 GMC Yukon XL Denali.
Hello, I have a 2003 GMC Yukon XL Denali. The front blower does not work at all. So far, I've replaced (with all new, no refurb or reman) the front AC control unit (the same unit with automatic air), … read more
Gary
Gary
ASE Certified Technician
Vocational, Technical or Trade Scho
1,589 satisfied customers
GMC Serria: i have a 2005 GMC Serria. had water on # ***** cylinder.
i have a 2005 GMC Serria. had water on # ***** cylinder. motor locked. pulled head on a very cold morning. ice in cylinder hole. no blown head gasket. having heads checked now. antifreeze checked to 3… read more
Mike S.
Mike S.
ASE Certified Technician
Vocational, Technical or Trade Scho
241 satisfied customers
GM yukon denali xl awd 6.0: 2005 Yukon denali xl 6.0 awd drivers
2005 Yukon denali xl 6.0 awd drivers side kick panel off there is a cut ground wire mounted to door post I belive it is called A post. I can not locate loose wire. I have a parasitic draw and I ma now… read more
Mike S.
Mike S.
ASE Certified Technician
Vocational, Technical or Trade Scho
241 satisfied customers
GMC Yukon XL 1500 Denali: 2005 GMC Denali XL AWD 190K Miles
2005 GMC Denali XL AWD 190K Miles been a great vehicle Recently my oil pump seems to loose prime, when it has been sitting more than an hour I have to tap gas to get oil pressure to bounce up, then it… read more
Randall C
Randall C
Auto Technician / Consultant
Vocational, Technical or Trade Scho
13,433 satisfied customers
I have a 2006 GMC Yukon XL Denali with 180K miles and a
I have a 2006 GMC Yukon XL Denali with 180K miles and a temporary knocking problem. I crank car from cold start, drive 3 miles @ 45mph to the interstate (70mph) and about 2 miles later, it sounds like… read more
sprinkles08
sprinkles08
Technician
High School or GED
19,035 satisfied customers
GMC Yukon XL Denali: 2006 GMC Denali XL I am told by the dealership
2006 GMC Denali XL I am told by the dealership the fuse(s) controlling the both passenger side window and the passenger side seat have blown. This has occured twice over the last week. The tech has lo… read more
Dave Nova
Dave Nova
GMC Technician
Associate Degree
929 satisfied customers
I have a 2003 GMC yukon xl Denali the left lo beam is out I
I have a 2003 GMC yukon xl Denali the left lo beam is out I have changed the bulb,check the left low beam fuse is good when i check the plug with an multimeter I get no Voltage at the plug when I turn… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
24,606 satisfied customers
GMC Yukon XL 1500 Denali: 2001 GMC Yukon Denali XL. Had no
2001 GMC Yukon Denali XL. Had no reverse gear, couldn't not back up. Forward gears were ok except that revved high and had to manually let go of gas pedal to shift into 4TH gear. Transmission rebuilt/… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
33,618 satisfied customers
GMC sierra denali: I just replaced the starter in my 2004 GMC
I just replaced the starter in my 2004 GMC Sierra Denali and now it turns over with plenty of power but will not start. Ive checked most of the fuses in the driver compartment and under the hood but n… read more
Gm Tech (Cam)
Gm Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
1,912 satisfied customers
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,912 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

766 satisfied customers

16 years of experience

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

248 satisfied customers

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

Mike S.

Mike S.

ASE Certified Technician

241 satisfied customers

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

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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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