Hi everybody,
I have a 2004 Yukon Denali XL with the 6.0 and full-time AWD.
It has just north of 230k miles on it.
I picked it up from a family that had been trading it back and forth among extended family members since new.
They were wealthy, had no mechanical knowledge whatsoever (but very nice people), and sold it to me cheap because it needed a new radiator (which I replaced myself because I am the opposite of wealthy).
They claimed it had regular maintenance and also claimed parts were replaced (but no records to speak of).
I have owned it for a little over a year, drove it back and forth from California to New Hampshire, climbed snowy mountains and towed all of the things.
It's a fantastic vehicle.
However now to the bad part.
I let a friend of mine borrow it to go camping and tow his boat.
On the return trip, he called me and let me know that the Denali was having issues moving under its own power, warning lights were flashing and it kept stalling.
When I got to the vehicle I discovered that the ABS and Traction Control lights were on.
When I started the vehicle and attempted to drive it while in "Drive", every time I would step on the brake I would get grinding and jittering from what appeared to be the front brakes.
The grinding and jittering would continue even after I would release pressure from the brake pad. The grinding/jittering would stop once the vehicle stopped (or almost stopped).
However, I discovered that if I manually shifted it (1st gear, 2nd gear, 3rd gear) the brakes work just fine and I could move the Denali under its own power.
I was unable to replicate his report of the vehicle stalling so I'm not sure what that was about.
I also have discovered that the battery is draining itself over a period of a day or so if left alone.
Seeing the ABS light on, my caveman reaction was to pull the ABS fuse itself and low and behold the Denali drives just fine in "Drive" (no jittering or grinding when pushing on the brake pedal). However, since my wife does drive it occasionally with my two daughters onboard, I would like to get the ABS working again so pulling the fuse is a short term fix.
These are the clues I have so far.
I have no idea if my friend did something he shouldn't have and caused the issues OR its just a sensor going bad and he just happened to be the one behind the wheel.
Before I start poking things with my volt meter, I was hoping someone on here much smarter and with much more experience could at least narrow down my search parameters and save me some time.
I appreciate all of you for any help you can provide!
- Mike
I have a 2004 Yukon Denali XL with the 6.0 and full-time AWD.
It has just north of 230k miles on it.
I picked it up from a family that had been trading it back and forth among extended family members since new.
They were wealthy, had no mechanical knowledge whatsoever (but very nice people), and sold it to me cheap because it needed a new radiator (which I replaced myself because I am the opposite of wealthy).
They claimed it had regular maintenance and also claimed parts were replaced (but no records to speak of).
I have owned it for a little over a year, drove it back and forth from California to New Hampshire, climbed snowy mountains and towed all of the things.
It's a fantastic vehicle.
However now to the bad part.
I let a friend of mine borrow it to go camping and tow his boat.
On the return trip, he called me and let me know that the Denali was having issues moving under its own power, warning lights were flashing and it kept stalling.
When I got to the vehicle I discovered that the ABS and Traction Control lights were on.
When I started the vehicle and attempted to drive it while in "Drive", every time I would step on the brake I would get grinding and jittering from what appeared to be the front brakes.
The grinding and jittering would continue even after I would release pressure from the brake pad. The grinding/jittering would stop once the vehicle stopped (or almost stopped).
However, I discovered that if I manually shifted it (1st gear, 2nd gear, 3rd gear) the brakes work just fine and I could move the Denali under its own power.
I was unable to replicate his report of the vehicle stalling so I'm not sure what that was about.
I also have discovered that the battery is draining itself over a period of a day or so if left alone.
Seeing the ABS light on, my caveman reaction was to pull the ABS fuse itself and low and behold the Denali drives just fine in "Drive" (no jittering or grinding when pushing on the brake pedal). However, since my wife does drive it occasionally with my two daughters onboard, I would like to get the ABS working again so pulling the fuse is a short term fix.
These are the clues I have so far.
I have no idea if my friend did something he shouldn't have and caused the issues OR its just a sensor going bad and he just happened to be the one behind the wheel.
Before I start poking things with my volt meter, I was hoping someone on here much smarter and with much more experience could at least narrow down my search parameters and save me some time.
I appreciate all of you for any help you can provide!
- Mike
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, it took me a long time to be able to buy a "good" scanner even for a bargain at the flea market
