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Unread 07-07-2012, 07:42 PM   #1
caiati
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Location: Boiling Springs, PA
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New to the Jeep world..... please advise!

Hello All,

I joined this forum less than a month ago when I first got my Jeep. I love this thing but unfortunately I'm having some issues I was driving down the road normally a few days ago and when I went to step on the brake it seemed as if the ABS was activating unnecessarily. The road was dry and I was doing about 40MPH. I continued driving and a few minutes later it did the same exact thing. I pulled over and turned it off, waited a few minutes and started it again. It seemed to fix the problem for about 4 miles of testing the brakes. I came to a stop light and when the light turned green and I stepped on the gas it seemed as if the traction control started to activate. Then the ABS, ESP and Skid Marks light came on. It finally stopped and I was able to drive but the lights didn't go away. In addition the message center says "Service 4WD System". I again pulled over and turned it off and the message was still there along with the lights. Over the past few days it is intermittent and there are no extenuating circumstances to cause any of it that I know of. I searched the internet and this forum and see that there is a lot of this going on. I've read the fix were batteries being weak, ground connector on the transmission, wheel speed sensors, ABS sensors, re-flash at a dealer so on and so forth. Where do I start?? I just traded in a nightmare money pit of a vehicle and I'm praying I didn't inherit another....... Please advise where to start!!!!!

By the way it is a 2006 Limited with QTII if that helps. Before I bought it the front rotors and pads had been replaced by the dealer I bought it from. Also, are the speed sensors and ABS sensors everyone referred to the same thing? I hope to get some answers. Thanks in advance!!

Rob

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Unread 07-07-2012, 09:38 PM   #2
Chirpz
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Hmmmm..... that is a lot of lights. Add "Crank shaft sensor" to your list of possible causes. A failing sensor will cause the "check 4 wheel drive" error.
There was a rash of bad sensors. I had one on my 07 WK. But I did not have the other lights and problems along with it.
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Unread 07-08-2012, 07:35 AM   #3
LJS8510
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I think wheel speed sensor.
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Unread 07-08-2012, 07:38 AM   #4
tom19511
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First off, go to your local autoparts store and have them read the codes..From there you can start looking for problems.
Chirpz is right, these jeeps have bad crankshaft sensors. Dont go blindly into these problems, check the codes first.
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Unread 07-08-2012, 07:42 AM   #5
caiati
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Thanks. How hard is this crank sensor to replace?
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Unread 07-08-2012, 07:54 AM   #6
tom19511
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sensor

Not hard,
They are held in by a oring, they have a small wire harness attached to it.
On my 3.7 it was on the passenger side of the engine. Up there pretty far, so I had to reach a lot..
Also my '06 has a lot of surface rust around the hole so it took a lot of persuasion to pop it out, and a dremel with a sandpaper attachment to clean up around the hole to put in the new one. It was only 16.00, so it was worth it. Except I did it in February in my cold nonheated garage..
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Unread 07-08-2012, 08:02 AM   #7
caiati
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So will an auto zone or advanced auto be able to locate the problem with a scanner or is this something the stealership has to scan?
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Unread 07-08-2012, 08:43 AM   #8
tom19511
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auto zone or advanced auto will be able to locate the problem with a scanner
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Unread 07-08-2012, 09:30 AM   #9
caiati
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Thanks guys
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Unread 07-08-2012, 11:51 AM   #10
caiati
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So I drive the 15 miles to autozone and of course the lights weren't on when they scanned it. I drive all the way back home only to have the lights turn on 500 feet from my driveway!! I guess I'll have to make another trip soon. I did manage to have them check the battery while I was there and it was reading 100% so I guess I can alleviate that possibility.
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Unread 03-05-2014, 03:29 PM   #11
lazy-A
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I am currently having the same problems. Let me know if you find anything out. Thanx.
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Unread 03-05-2014, 03:32 PM   #12
lazy-A
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It's only engaging on drivers front side though, and feel grinding when I brake.
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