Stabilitrak/Traction Control Problem

[MrBob]

My wife's 07 did all that service traction control / stabilitrac nonsense. It turned out to be a bad throttle body. Also a word of caution, it will eventually get to where it won't accelerate. Hers would start and run fine but i could not drive it anywhere.

 

[tazjamin]

Mine is doing the same so now i dont leave home without the scanner and today it popped on I hooked it up at a stop light and took a pic not sure what it means yet


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---------- Post added at 05:57 PM ---------- Previous post was at 05:55 PM ----------

But also my check engine came on around the same time and im not sure if that has anything to do but I took a pic of that also


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[BSarteSr]

what diagram do you want? i had a similar issue that turned out to be a wheel speed/abs sensor on the rear.

Looking for someway to troubleshoot the message(s) that comes up on my dash that say:
Traction Control Disabled
Service Stablitrak

Then the traction control and ABS icon's on the dash are illuminated, won't reset nor show any codes when I check with my scanner.

A diagram of where the sensors are would be at least a starting point.

 

[Susan15]

Add me to the group with the same issue

Hi All, I'm new to this forum and experienced this issue this morning with my '07 Yukon. I'm driving down the Turnpike at 75 mph with no issues, then out of the blue, the sensors kick on about checking the traction, stabilitrak systems, very hard shift, etc...pretty scary at that speed! On top of that, my oil pressure dropped and smoke started coming from the exhaust. Of course it would happen while on a business trip 3 hours away from home...any how, I limped to an auto shop and they checked the spark plugs, wires and discovered one was heavily covered in oil (never had any indication lights come on about low oil, no sign on the driveway that oil was leaking, etc.). I called the dealer in my hometown and talked to a mechanic who has worked on GMC/Chevy vehicles for over 25 years. He said this year of Yukon/Tahoe, had big issues with this, as you all are discovering, and very often, it is caused by a leaky valve cover that creates the misfires and other issues.

I made the decision to leave it there and not attempt to limp her home, but it maybe something to check out. Hope it helps some...now working on how to get mine back home...fun stuff! Not!

 

[al2fast]

My old 08 Sierra Denali did this stunt ironically on the way to trade it in. Stopped at auto zone because I just had a check engine light after shutting it off for a few minutes (and thankfully getting full power back) and it was anice accelerator pedal position sensor and the error said that one sensor varied by more than x percent for less than a second. Was a pretty cool trick to pull on us just north of downtown Chicago. Ended up not buying the rig we looked at and the light was back off within 2 hours and never came back on, at least for the last 2 weeks I owned it.cannot help with the code scanner don't own one.

 

[Susan15]

My Yukon issue has been resolved, but costly

Just to share an update...I ended up having the Yukon towed back to the town where I live and come to find out, there was a defect in the '07 and '08 when Chevy introduced their flex-fuel engines. Mine ended up being that when on long trips, the engine will go from 8 cylinders to 4 to save on gas mileage. However, when it had to shift back into 8, the lifters will either be stuck down or wide open. One of mine was shut...they replaced 8 lifters on one bank they knew were bad. Cleaned the carburetor and changed the oil. They really wanted to change all 16, but I just couldn't afford all of that. I spent a tad over $1700, but at this time, it is running very well...

 

[08grey]

get the code read at a local parts store, don't go crazy checking everything