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Unread 12-29-2014, 10:23 AM   #1
iceknite41
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2007 WK 
 
Join Date: Jun 2013
Location: Hanmer, Ontario
Posts: 4
HELP!!!! ESP/BAS, Trac ctrl, ABS Lights on

"Ok I have posted in the other ESP/BAS forum and no more postings.
This post is going to be a little long winded but it describes my problem to a T.
I was driving home the other night from NYC and my ESP/BAS, Trac Light and ABS lights came on along with the right front brake "locking up". As well as when my traction control is on, when I accelerate from a stop even slowly, the engine responds as if I was slipping and losing traction, sputtering power and then all of a sudden it just stops. Now along with all these other issues, Ive noticed that the MPG of my jeep has gone down dramatically since this all started. Ive been told the since the front right brakes keep locking up that the left front wheel sensor/wheel bearing could be bad, maybe, but that wouldnt explain the loss of power from the traction control when accelerating, but would explain the loss of MPG because of the added rolling resistance.

Im going to contact the NHTSA about this issue because I feel that if this were to happen to anyone who didnt know how to control a jeep they could possibly lose complete control because the ESP and Traction control stop working at this point, completely without warning. Anyone experienced any of the same instances. Please help if you have experienced anything along these lines and what the final solution was."


I did a search of my problem and found this post on the JK Wrangler forum from 2011. I'm having these exact issues now on my 2007 Grand Cherokee Overland and I'm wondering if anyone knows the exact issue. From the replies posted it would appear that's it's an ABS sensor with a bad contact or that simply needs replacing. I recently replaced the front wheel bearings/hub which includes the ABS sensor so it likely just came loose, wondering if somebody has this figured out before I get in there and check it out. Thanks

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Unread 12-29-2014, 10:53 AM   #2
tom19511
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2006 WK 
 
Join Date: Mar 2009
Location: Sheffield Lake, OH
Posts: 526
Did this happen before or after you replaced the bearings?
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2006 Grand Cherokee Laredo 3.7
2007 Liberty Sport 3.7
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Unread 12-29-2014, 11:26 AM   #3
rcarter36
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Join Date: Dec 2014
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I had a similar problem in my 2005 limited, minus the brake locking up. I noticed a significant drop in gas milage due to the wheel speed sensor wire being worn through.
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Unread 12-29-2014, 11:46 AM   #4
iceknite41
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2007 WK 
 
Join Date: Jun 2013
Location: Hanmer, Ontario
Posts: 4
Quote:
Originally Posted by tom19511 View Post
Did this happen before or after you replaced the bearings?
After, which leads me to believe that it may just be a loose wire. I haven't noticed a drop in mileage so far.
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Unread 01-12-2015, 12:47 PM   #5
07WKLtd
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2007 WK 
 
Join Date: Aug 2007
Posts: 208
Quote:
Originally Posted by iceknite41 View Post
"Ok I have posted in the other ESP/BAS forum and no more postings.
This post is going to be a little long winded but it describes my problem to a T.
I was driving home the other night from NYC and my ESP/BAS, Trac Light and ABS lights came on along with the right front brake "locking up". As well as when my traction control is on, when I accelerate from a stop even slowly, the engine responds as if I was slipping and losing traction, sputtering power and then all of a sudden it just stops. Now along with all these other issues, Ive noticed that the MPG of my jeep has gone down dramatically since this all started. Ive been told the since the front right brakes keep locking up that the left front wheel sensor/wheel bearing could be bad, maybe, but that wouldnt explain the loss of power from the traction control when accelerating, but would explain the loss of MPG because of the added rolling resistance.

Im going to contact the NHTSA about this issue because I feel that if this were to happen to anyone who didnt know how to control a jeep they could possibly lose complete control because the ESP and Traction control stop working at this point, completely without warning. Anyone experienced any of the same instances. Please help if you have experienced anything along these lines and what the final solution was."


I did a search of my problem and found this post on the JK Wrangler forum from 2011. I'm having these exact issues now on my 2007 Grand Cherokee Overland and I'm wondering if anyone knows the exact issue. From the replies posted it would appear that's it's an ABS sensor with a bad contact or that simply needs replacing. I recently replaced the front wheel bearings/hub which includes the ABS sensor so it likely just came loose, wondering if somebody has this figured out before I get in there and check it out. Thanks
Haven't had the brakes lock up, but I've had an intermittent issue with the ABS & Traction Control light coming on during normal driving, and the EVIC displays "Service 4WD System". It ended up being the brake switch that was intermittently failing.
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Unread 01-12-2015, 02:25 PM   #6
tom19511
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2006 WK 
 
Join Date: Mar 2009
Location: Sheffield Lake, OH
Posts: 526
Check the ABS sensors, may have a broken or worn wire.
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tchristopher1@wowway.com
2006 Grand Cherokee Laredo 3.7
2007 Liberty Sport 3.7
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Unread 01-12-2015, 07:01 PM   #7
GregK340
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2007 WK 
 
Join Date: Oct 2011
Location: Liverpool, NY
Posts: 104
The better code readers (like at a dealer or better mechanics) will tell you which sensor isn't being picked up. It might save you a lot of time and money rather then just changing parts, without knowing for sure what the problem is. But you could check for an obvious broken or disconnected wire. on the wheel sensors or receiving units.
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