Death wobble on certain braking conditions - Page 2 - JeepForum.com

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post #16 of 22 Old 05-21-2013, 12:27 PM
Jeepgc3
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I had a theead about my issue. 3" lift now dw. Read that. Before i lifted it had a small vibration in the wheel sometimes when i went to brake at those times but was no issue. I figured it was the rotors since i have the teve calipers. After i lifted is when it was so bad i thought it was somthn in the suspension. But i put new rotors and pads on and have not had an issue since. Let me know if u fixnit

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post #17 of 22 Old 05-21-2013, 12:50 PM
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I guess its the geometry in the suspension that made it feel alot worse
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post #18 of 22 Old 05-21-2013, 04:41 PM
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Quote:
Originally Posted by elcorvino View Post
It's kind of makes sense / kind of doesn't. Warped rotors if applying brakes causing fluctuation in and out... But at the same time I don't exactly see how it would cause the tires to wobble so dramatically.

Either way - I'm meeting with TJSWJ in about 3 weeks for a new front axle. I'll just bolt new pads / rotors on and with a new everything I should hopefully be good.
Think about it like this. A warped rotor is essentially causing the pads to grab a certain part of the rotor harder than in another part, which is the pulsation you feel. I know from having a lot of experienced with warped rotors that it depends on where the rotors are positioned in their rotation as to what type of pulsation you experience. If both are "grabbing" at the same time, the steering wheel doesn't tend to shake much, but you can feel the front-to-back pulsation when coming to a stop. If one side is grabbing and the other is at its "non-grabbing place", then they switch due to the rotation of the wheels, then that is what causes the shimmy in the steering wheel. This back-and-forth "grabbing" gets the steering components moving ever so slightly and initiates DW. With warn components such as bushings, this little movement is exaggerated and the rhythmic properties of blah blah blah take over and that's what you feel in DW. Again, warped rotors are not the CAUSE of DW (that would be warn components) but can be what INITIATES it... That is why I said replacing your rotors will buy you some time as it will eliminate that small movement in the components. But this is only a band aid. You need to see what is warn out bushing wise and replace that to completely stop DW.
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post #19 of 22 Old 05-22-2013, 02:14 PM
ratmonkey
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the only way a grabbing rotor would give you dw is if other parts were loose enough to allow the oscillation to set in.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

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post #20 of 22 Old 05-22-2013, 03:14 PM
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UPDATE::::: Installed new raybestos rotors and switched to akebono calipers.This part of the repair defiinetaly made a big difference, but the underlying problem *tie rods* is going to be done tonight.

Better to be mute than dispute with the ignorant.

Perversion or self exploration isn't the point in this case.In fact there will be no case, no trial by a jury of our peers just fear in the hearts of those we choose. Doing this for the knowledge of our victory, that is how we are different.
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post #21 of 22 Old 05-24-2013, 09:57 AM Thread Starter
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Update - mine self resolved. No issues for a few days now.
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post #22 of 22 Old 05-27-2013, 10:03 AM
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with the new rotors, pad, calipers, cv axles, and tie rods she drove all the way to Texas like a dream, even averaged 17.5mpg

Better to be mute than dispute with the ignorant.

Perversion or self exploration isn't the point in this case.In fact there will be no case, no trial by a jury of our peers just fear in the hearts of those we choose. Doing this for the knowledge of our victory, that is how we are different.
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