Steering wheel shimmy under hard braking - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
 
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#1 Old 09-11-2007, 02:10 PM
teuscher
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Steering wheel shimmy under hard braking

I have a pretty violent steering wheel shake when I have to climb on the brakes hard at speed (65 mph +). It is only for the first few seconds and then the shimmy stops. I replaced the front rotors with Powerslots not too long ago and that fixed my shimmy under normal conditions, so I am pretty sure it is not a warpage issue. If I use light to medium brake pressure at speed, I have no shimmy at all. It almost seems like a front end/suspension issue. Has anyone else experienced this? If so, what is the fix? The truck has < 20k on it.

P. S. - I have been plagued with tire issues from day one. They have been balanced 5 times already! The dealer balanced them the time before last and I had really bad speed wobbles on the freeway afterwards (where the seats were shaking). I took it to Discount Tire and they put the 2 "good" ones on the front and the speed wobbles went away for now. I was hoping for a warranty on the tires, but they wouldn't go for it. I am wondering if new tires would solve my problems?
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#2 Old 09-11-2007, 02:14 PM
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this may sound dumb but is it just ur anti lock brakes

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#3 Old 09-11-2007, 02:17 PM
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I don't think so! The steering wheel shakes violently for about a second. I have never had a truck do this before.

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#4 Old 09-11-2007, 02:29 PM
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ABS system, road surface, glazing on the rotor or pads, road oils and grease on the brakes, or the tires themselves could all be part of the problem and if you can recreate the problem with the same reaction each time, you maybe able to narrow the problem down.

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#5 Old 09-11-2007, 02:47 PM
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It happens every time, so it probably isn't the road. New front pads (EBC green stuff) and Powerslot rotors as well, so probably not that unless they just grab really hard at first and cause the ABS to kick in. I know what this felt like on my old Dakota and this is a bit different. The suspension differences may account for this though. I will probably get new tires before the snow starts to fly, so that will eliminate one of the variables. Hopefully, that will improve things. The stock wranglers are garbage!

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#6 Old 09-11-2007, 03:16 PM
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If the truck is only a year old, I find it hard to believe you need a brake job. I think I would be at the dealership asking questions and pushing for them to help me under my warranty; even after youve updated the front brake system the dealership can not void your warranty rights. Its the law. The only way they can say no is if they can prove the changes caused the problem. Ether way, youll have your answer and youll have one of the most important safety systems on your truck working correctly.
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#7 Old 09-11-2007, 03:42 PM
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If you've been having this problem since day one, I'd skip the brakes and start looking at the suspension, tires, and wheels. I know it still has warranty, but I'd find a good front end shop and have them take a look at it.

Does rotating the wheels have any effect on the shimmy at all? If so, I'd seriously think about getting a good set of tires on it and have the tire shop check the rims for excessive run-out.

It might also be a caliper that is dragging and causing the rotor to heat up. The extra heat could cause a slight warp that you can only feel under heavy braking conditions. Over-torquing the lug nuts can also cause enough run-out to cause this in some cases.

Just a few ideas to consider...



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#8 Old 09-11-2007, 04:03 PM
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Be careful while rotating the tires on the truck if you rotate the wheels in an "X" fashion, the tread of the tire can pull the direction it was trained to pull when it was on the other side of the truck. With todays tires, its safer to leave the tire on the same side and simply move it front-to-back. That way both sets of tires are pulling the same direction.
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#9 Old 09-11-2007, 05:45 PM
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Sounds like you have a set of warped rotors!

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#10 Old 09-12-2007, 06:12 PM
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there is a TSB for that problem
take it into a dealer ask to have it fixed,
it involves replacing the lower control arm bushings

the dealer i took my truck into said they never heard of that
tsb and refused to do it, then tried to sell me the new bushings
4 @34./ each

look this up and print it out
http://dodgeram.info/tsb/2007/02-001-07.htm

g/l
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#11 Old 09-13-2007, 11:30 AM
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thanks. I think this may be what I am looking for.

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#12 Old 09-28-2007, 12:40 PM
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My 2004 Durango does that. Rotors are not warped. I believe it is the calipers chattering but not sure how to fix. It's done this since new and dealer resurfaced rotors at 5K but brake warranty ends at 12K so am long past now. I only get the bad shaking when braking moderatly to hard at highway speeds. Do not notice it in town.
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