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post #1 of 22 (permalink) Old 02-01-2010, 06:54 PM Thread Starter
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Crazy Traction Control

So I replaced the steering rack last night and got the truck aligned today. The steering feels great, but now the traction control kicks in (just on the front wheels, I think) when/if I give it a little gas while cornering. I traded a small clunk for an even more annoying issue!
The mechanic said that everything looked good as far as he could see. So I need some ideas from the experts here on what could be causing this and what to do to fix it.

Symptoms are:

Happens towards the greatest angle of moderate turns in either direction while applying gas- Doesn't seem to happen while coasting.

Happens at low speeds (ie. pulling out of a parking lot) - rather reluctant to test it at high speeds.

Happens on gravel or pavement.

Will happen even if the TCS is turned off.*

Will illuminate the TCS indicator light if duration is long enough (which is commensurate to speed and steering angle), but can also happen briefly and not trip the lamp.

Happened A LOT when we first drove after the new rack, when one wheel was really toed-out, but not at all when we overcompensated that alignment with too much toe in.

*Wondering if a possible clue may be that during our snow storm last month I turned off the TCS so I could spin the wheels a bit for fun, but even when the dash indicator said the TCS was disengaged it would activate and pulse the brakes to regain control right when I got the truck to slide a little bit. The current issue didn't surface until right after the rack replacement, however. Could this be related?



All the brake lines and sensors looked to be appropriately in place- none were moved during the removal/install of the rack.
Steering column DID get turned slightly while intermediate shaft was disconnected.
Front wheels spun freely while up on the lift, if that has anything to do with it.
Wheels are mounted properly and torqued to spec.

Any help would be great.

Last edited by Kansas1230; 02-03-2010 at 01:56 PM.
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post #2 of 22 (permalink) Old 02-01-2010, 07:36 PM
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I'm at a loss. I hope it's an easy fix otherwise that's a headache for that small thumping in the first place. Good luck.

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post #3 of 22 (permalink) Old 02-01-2010, 07:46 PM
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Now Im not sure. But I think i read somewhere that if something was unpluged and the key was turned on it could screw things up. Again Im not sure. Maybe they unpluged something to do with the TC to put the rack in and turned the key on to turn/test the steering. I might try to disconnect the battery for a few hrs. Again Im not sure hope someone else chimes in.

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post #4 of 22 (permalink) Old 02-01-2010, 09:13 PM Thread Starter
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Steering Position Sensor? I heard that it can monitor steering column motion even when the ignition is off. Will try the battery disconnect- that usually solves everything at least for awhile.
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post #5 of 22 (permalink) Old 02-01-2010, 10:53 PM
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I'm not very "techy" when it comes to vehicles, but I had my steering rack replaced last week at the dealer which replaced my "clunk" but then caused it not to be alligned to specs because it turned out to be the wrong rack. My dealer is suppose to replace the rack this week, finally, but told me that the issues I would have would be the EPS/BAS sensors going off because the "gearing ratio" in the one they put in was different. Sorry if this doesn't help...

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post #6 of 22 (permalink) Old 02-01-2010, 11:02 PM Thread Starter
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Quote:
Originally Posted by bjamrow View Post
... because it turned out to be the wrong rack...
I remember reading that thread. It scares me. I am wondering how I could find out for sure that I have the right rack... how did the dealer manage to get the wrong part? Did RockAuto? I measured and compared the old and new racks (identical), but obviously can't see the ratio inside. Was yours doing what mine is with the TCS?
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post #7 of 22 (permalink) Old 02-02-2010, 12:17 AM
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I had two issues, not knowing what was wrong after they replaced it: 1st I had a rubbing that wasn't present before, and 2nd, there was the "ticking" sound in the front end that they said was the EPS and BAS trying to correct for the fact that allignment wasn't to spec and that the rack was allowing too much play for the computer - if I'm recalling correctly. The part they placed in they thought was universal for both the WK and XK - but turns out there was a TSB about it that they missed. I'm hoping to take it in tomorrow, I'll try to get some more technical info and post.

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post #8 of 22 (permalink) Old 02-02-2010, 03:13 AM
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Based on your description of when you say its kicking, it sounds to me like the Traction control is just what is it supposed to do. What kind of surfaces are you "cornering on"...it is supposed to kick in when cornering IF you are accelerating and the vehicle senses any wheel slip.....which could be on pavement too if you are going fast enough of it is slick.
Also, pushing the button does NOT turn the ESP completely off. you will still have some of the ESP feature active unless you HOLD the ESP button down for 10 seconds.This is all explained in your vehicle manual.

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post #9 of 22 (permalink) Old 02-02-2010, 07:25 AM
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Kansas?
I've read your post (several times) and although you mention a mechanic looked it over you have not said if you had the toe in reset by degrees.
If you used the old measure by inch method, it may be off enouph to freak out the traction control.
This setup is sensitive enouph to see the slightest toe problem.....heck a few members have had the tcs go haywire after punching a curb and throwing the toe off by just a hair.

Just a thought,
Rob


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post #10 of 22 (permalink) Old 02-02-2010, 12:42 PM
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Quote:
Originally Posted by robby View Post
This setup is sensitive enouph to see the slightest toe problem.....heck a few members have had the tcs go haywire after punching a curb and throwing the toe off by just a hair.

Just a thought,
Rob
Which really surprises me because I hit a curb a few weeks ago and knocked it out of alignment so much that the steering wheel is not straight and I haven't had any problems with the TCS. It's at the dealer today having an alignment.

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