I had the stabilitrak unicorns visit again 2 weeks ago which turned off traction control and killed the RPM gauge, and did the crazy gear shifting, and would also kill the engine sometimes. I brought it to the dealer and they couldn't get it to act up, and only found a issue with the engine crank sensor, replaced it and reloaded the computer software. It's been ok since then although my traction control turned off by itself yesterday as I parked the vehicle. There's also something making noise behind the lower dash when I make turns, sounds like something rolling around against the plastic. The engine also idles a little funny and will jump up/down a few RPM occasionally.
Very Hard 1-2 shift, Service Stabilitrak Light
- Thread starter Brougham
- Start date
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chevyboy23
JUST QUE DOGGING!!!!
Well I guess I can join the club. Stablitrack and service brake system light came on. It's the 3rd time that it happened. It usually goes away by the am. Off to the shop I go.
EDIT>
Well, so I was wrong... it wasn't the battery. EXACT same problem came back about 3 days later. It seems clear that the Stabilitrak is some sort of low power issue. Went even as far as replacing the alternator, but that didn't fix it either. I'm already over $1000 in parts and labor, and nothing's worked. I'm going to have to take it in to the dealer, which is the scariest thought of them all.
Wish me luck! I will follow up with results.
Question:
Does your stabilitrak light come on at random times, or is it almost exclusively during coasting and then applying brakes, like it does mine?
*****************************************
CHECK YOUR BATTERY!!! I've had the exact same stabilitrak, traction control issues for serveral months. I also had an issue with revving issues at around the 2000rpm, and hard rev after decelerating, making a turn, then accelerating.
ODB II checks have shown issues ranging from, throttle body sensor (which I replaced), Mass Air Flow sensor (which I replaced), O2 Sensors, Running Lean, etc.... Even after replacing parts, there have been no improvements.
Read on the forums here that battery could be an issue. For me, the BATTERY WAS THE ISSUE!! Got the battery checked, and it was only at 8Volts and 120Amps... very low. I never thought to check the battery since I never once had any issues regarding it. So I changed the battery, and EVERYTHING went away. It runs absolutely perfect again.
Hope this helps some of you.
Well, so I was wrong... it wasn't the battery. EXACT same problem came back about 3 days later. It seems clear that the Stabilitrak is some sort of low power issue. Went even as far as replacing the alternator, but that didn't fix it either. I'm already over $1000 in parts and labor, and nothing's worked. I'm going to have to take it in to the dealer, which is the scariest thought of them all.
Wish me luck! I will follow up with results.
Question:
Does your stabilitrak light come on at random times, or is it almost exclusively during coasting and then applying brakes, like it does mine?
*****************************************
CHECK YOUR BATTERY!!! I've had the exact same stabilitrak, traction control issues for serveral months. I also had an issue with revving issues at around the 2000rpm, and hard rev after decelerating, making a turn, then accelerating.
ODB II checks have shown issues ranging from, throttle body sensor (which I replaced), Mass Air Flow sensor (which I replaced), O2 Sensors, Running Lean, etc.... Even after replacing parts, there have been no improvements.
Read on the forums here that battery could be an issue. For me, the BATTERY WAS THE ISSUE!! Got the battery checked, and it was only at 8Volts and 120Amps... very low. I never thought to check the battery since I never once had any issues regarding it. So I changed the battery, and EVERYTHING went away. It runs absolutely perfect again.
Hope this helps some of you.
Last edited:
Any luck?
---------- Post added at 08:58 AM ---------- Previous post was at 08:58 AM ----------
Any luck with this repair?
---------- Post added at 08:58 AM ---------- Previous post was at 08:58 AM ----------
Any luck with this repair?
LoHoe
Full Access Member
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My 2007 Tahoe has the Stabilitrack and traction control off/service light that comes on the screen whenever I am riding but I havent really noticed a different in the way it handled
Stumperxxx
TYF Newbie
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Clunk from 1-2
Hey guys has anyone figured out the traction control off stabilitrac off then a clunk from 1-2 gear? It happens usually on wet days, driving down hills or idleing. Can someone please help me out and not try to say its a battery. Or atleast confirm the wheel speed sensor is the fix.
* Im not bringing it to the garage yet because it's past warranty and 2 yrs ago they said it was fine (due to the fact the code doesn't stay around) the shop rates are 245 a hr so someone please help.
Hey guys has anyone figured out the traction control off stabilitrac off then a clunk from 1-2 gear? It happens usually on wet days, driving down hills or idleing. Can someone please help me out and not try to say its a battery. Or atleast confirm the wheel speed sensor is the fix.
* Im not bringing it to the garage yet because it's past warranty and 2 yrs ago they said it was fine (due to the fact the code doesn't stay around) the shop rates are 245 a hr so someone please help.
Last edited:
Make sure your intake tube is attached to the throttle body. If there is no air flowing over the mass air flow sensor it will cause this issue. It has happened to me. Fixed it immediately.
It's been well over 6 months(10K miles) now, and I haven't had this issue since the crank sensor was replaced. Before that it was an absolute nightmare, the transmission would go haywire being in wrong gears and would shut itself off randomly. The problem started with the service stabilitrak light coming on every blue moon, and then the 1-2 clunk, and then it just got worse and worse. I couldn't find any connection to driving conditions, highway speed, stop lights, wet, hot, cold, dry didn't make a difference. Only way I could get the truck running again after it shut off was to pull fuse #46 and reseat it after 30 secs or so which would get me anywhere from another few blocks to a few miles.
UcanthavemyYukon
TYF Newbie
Oh blessed be this TYF site. I'm new here and I am having the same problem with my 2007 Yukon XL. My stabilitrak light comes on when I start the car and doesn't go off at all. After the 1-2 clunk, it runs extremely hard with a knocking in the engine. After scanning for codes I came up with a P0301 cylinder one misfire code and checked the compresssion and changed all the spark plugs and wires but the truck still runs bad and the stabilitrak light still comes on. My warranty is expired and I did put it in the shop a couple of years ago for the same problem but I am at a loss of what was repaired. I have read here that it could be various problems from front end tire sensors (and my Yukon is due some new tires and a alignment) to valve sensors to the egr valve itself, so out to the garage I go to do some more checking and possibly finding a solution to my problem(s). Any advice from you guys would be helpful!!
lowexpo
Member
Well add me to the list. My '07, while on vacation, did the traction control/stabilitrac crap. Very hard 1-2 shifts. Battery is 6months old. Guessing still no definate fix I'm guessing??? I'm 350 miles from home hoping this thing doesn't take a dump on me. It was raining and about 200miles into trip when it happened driving at highway speed btw
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