2004 GMC Yukon XL Denali Traction Control
At a stop sign or a green light, when I accelerate slowly, the engine cuts power and the "traction control" displays on the computer. This only happens intermittently, and always when conditions are dry and sunny (I live in Florida). It behaves as if I were accelerating on glare ice and the wheels were slipping. To overcome the problem on the scene, I either give it more gas (as the problem happens only on light throttle) or I de-activate the traction control via the button on the dash.
Has anyone had this problem? If so, what is the fix? A bad sensor or a bad traction control module?
Has anyone had this problem? If so, what is the fix? A bad sensor or a bad traction control module?
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Sorry to hear about the problem with the MAFS and the A/C. Both those parts are not cheap.
That worked for about 1000 mi then it started again. After two times to the
local dealer ( they could not find any problem ) and $ 125.00 later . I decided to
take a chance and replace the front sensors ( approx. 2 hours in my garage )
and cost approx. $110.00 ( for the set of 2 )at my local chevy dealer. He needed the vin to locate the correct part and it took a couple of days to get. of course they are made in
Taiwon . That completely corrected my "traction control " problems. I have driven
approx. 4000 mi with no problems except for the rear wiper that doesn't work.
73,676 mi and gets 17.5 on the highway.
I got to cut grass now so i will check back in 1 to 2 hours.
I have an engine light that goes on and off all the time. I tried new high grade fuel, the gas cap is tight and snapped when doing so but still the light goes on and off.
I did notice that sometimes when I turned on the high beams the engine light would come on. It usually goes off in a day or two.
Is it the battery or alternator??
Thanks,
London, Ontario
For example it could be an O2 sensor, gas cap, MAF (mass airflow sensor) or a number of other emissions related problems. If you know someone with a code reader, check the error code, it will point you in the right direction.
On my Denali, the gas cap was tight but the light still kept coming on intermittently. It turns out that there was a tiny crack in the rubber ring on the gas cap that forms the seal between the gas cap and the filler neck. A new gas cap solved the problem. Good luck.
tidester, host
SUVs and Smart Shopper
The problem has worsened to the cut in power at almost every traffic light, toll booth and exit ramp and I'm very careful in pulling out in traffic for this cut in power can result in a collision when you accelerate in front of a car that is too close.
I have reached my patience limit after driving the truck yesterday and it is now waiting at the shop waiting for the wheel sensors to be changed. I hope it works.
Thank you again for the information, I will let you know if the new sensors help or if the car gets traded in!
As far as the electrical problem with the seat heater switch, no I haven't experienced that at all.
My 2004 is doing this, but also the ABS light comes on and goes off frequently and just this morning a sqeal seemd to be coming from the wheel area that went away after a mile or two.
Any thoughts?
Were you planning on have the vehicle diagnosed by a GM dealership? Please keep me posted on any information.
Thank you,
Caron, GM Customer Service
If you are able to do your own work, then please try removing the front sensors intact and FILE the hub where the sensor mounts. It will cost you nothing, except 1-2 hours of your time. I was having the same problems as you were (i.e. intermittent traction control activation), and tried all kinds of diagnostics, even driving the car down the street with a scope on the sensors! The GM people did not have a clue as to the solution. I even replaced the front sensors, but to no avail. Then I was speaking to another mechanic about this, and he informed me that this is a known problem on the Yukon, where corrosion forms under the speed sensors on the hub, which in turn interrupts the signal from the sensor to the computer. The simple solution was to remove the sensors and use a file. Then just replace the sensors. My Yukon Denali has been trouble free for the 18 months since I did this.
As for the front wheel speed sensors, they are located on the hub, not behind the caliper and not inside the tire. The hub is the stationary part where the drive shaft hooks into, and allows for the rotating components to be located. The wheel speed sensor will be easy to find as there will be a wire attached to it. It is located near the top of the hub (around 1 o'clock if I recall correctly). If they have not been removed in the last 2-3 years, they will be difficult to remove intact, but it can be done if one is careful. Good luck!
I saw someone that posted was in Pittsburgh area.....anyone want to offer information where they took their vehicle for this repair and got good service and reasonable rates? We are located in the New Castle PA area. I have read a lot of the posts on here with detailed directions and my husband is going to try cleaning the hubs himself. (I would like to have a back-up though)
We also have a few other issues with this truck. The dash has gone out a few times resetting the radio and such.....no idea why this happens. The airbag light came on a few months ago - probably a sensor. We also have the tire pressure message.
Thanks in advance for any input.
I had the ABS light come on, the traction control light come on and also experienced the lost of acceleration when pulling away from a complete stop, such as a red light. I was nervous turning left in front of oncoming traffic from a standstill because of this.
WRight wanted to change the ABS sensors and the steering wheel position sensor, which I did and the problem continued to come and go, albeit not as frequently. When driving in the snow, if the tires did slip it would immediately kick on the ABS light and traction control light. Sometimes those lights stayed lit up for weeks and wouldn't shut off, emitting a loud pinging noise for a minute every time I turned on the vehicle. When the ABS light is on, that means you DO NOT have antilock brakes working and there were a few times that I skidded and fishtailed a bit on wet roads and also had to be especially careful in the snow.
Then they wanted to replace the ABS/traction control module which is housed under the body of the vehicle. That part plus labor was over $1000. There were no guarantees that the problem would go away because it was just an educated guess on their part if that was the sole source of the problem. It seemed like too much money to throw at a "guess" with no guarantees. At that point, with the leaking fuel line, need for new brakes and four new tires I decided to not throw any more money into the Yukon and got rid of it.
Thanks in advance for your help.
Four times so far over $1200 so far and I still have the same
Problem the truck won't move when the traction comes
On!!! The want to replace the sensor in the steering wheel
That I just had replaced 6 months ago that cost $500
Then the computer on and on it goes its a money
Pit I'm getting sick of now there replacing the wheel sensors
If it don't work this time I'm contacting DMV !!!
However, you did not need to replace the hub. Remember this when the left side shows the same problem. All that needs to be done is to remove the wheel speed sensor and file the area where it makes contact with the hub. This area tends to rust over time, and if filed until shiny, the sensor will work properly! Tell him to put some anti-seize on the area before he replaces the wheel speed sensor.