GMC Yukon XL Questions Maintenance & Repair

Heat/Air System Has No Power At All

I have a 2005 GMC Yukon Denali XL. The entire heating/AC system for the front does not have any power to it. There is no display, no lights, doesn’t even turn on. The rear system works fine althou...

2007 GMC Yukon XL 2500 Radio Whine

I just purchased a 2007 Yukon XL 2500 with a Factory DVD. It has a whine in the speakers all throughout the car. It happens if the radio is on or if the blinkers are on. I know the blinkers run thro...

P0303 Misfiring Cylinder

I was driving on the highway and didn't notice anything out of order until I pulled off and stopped at the stop light. The engine light was off, but my engine was idling rough. I pulled into my ho...

3rd Row Of A 2020 Gmc Yukon

only the right side is working. Left side is stuck in up position.

Left Turn Signal Won't Work

Drivers side turn signal does not work but passenger side does work, and hazards work for both sides as well

What Can Cause The Evap System To Fail On Board Test

replaced solenoid valves and fuel tank pressure sensor

Read A/C Problem Not Working

front a/c works perfectly but the back a/c does not even turn on any ideas what it can be ?

Mystery Coolant Leak Coming From Behind Engine Possibly.

Replaced thermostat even tho it wasn't leaking close to it but just to get it out the way, also replaced the upper radiator hose. Went and put a patch on a transmission cooler line and it's not lea...

2002 Yukon Xl 5.3 O2 Problems

i have a 2002 yukon xl with 5.3 i recently changed O2 sensors and when i ran live data it does read bank 2 now it reads as bank 3 has anyone had this issue before along with it throwing codes becau...

Gas Gauge Way Past Full

I have a 2005 Yukon XL, the gas gauge goes past full. First to about 3 o'clock, next time to 5, next time started to about 7 o'clock. this was after filling it up and after several starts. Any ide...

02 Yukon Xl 1500 5.3 Stalls Out When Pressing The Gas

So the other day when heading to work my yukon as she started on the road wouldn't go past 45 and when we realized we tried to turn back around but before we could she died and WOULD NOT start back...

Weird Noise Under My Truck

I have a 2002 Yukon XL it was not making any noise all day as I was driving it was parked for about 2 hours I left went to the store still no noise I leave the store and turn on a road and my truck...

Yukon Denali Engine Ticking

I have a 2001 Yukon Denali 6.0L and 92,101 miles on it. I have a recent ticking in the engine. Took it to a mechanic, who has never serviced our vehicle for us before and he said the ticking comes f...

Why Am I Losing Coolant

I replaced the radiator in my 00 Yukon xl 1500 an it's still losing fluid what could it be or what should I check

Driver's Side Window Regulator Repair

Driver's Side Window Repair

How to pu

2003 GMC Yukon Won't Start

Left key in truck overnight in the on position. Charged the battery. No lights on the dashboard and the engine made no sound. My s put his battery (same kind) in my truck. It started right up. His t...

My Fuse Keep Blowing On A 2008 Yukon Xl Every Time I Turn The AC On.

2002 Yukon Xl 1500 Denali 6.0 Awd

Will a broken front axle shaft keep my vehicle from moving in amy direction

2002 GMC Yukon XL Test Adapter And Description Table

I just bought a probe adapter kit to check some terminals in my electrical connectors. I own the factory manual for the truck, but cannot find the references to the terminal sizes. I found one ref...