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Old 09-03-2013, 07:07 AM   #1
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Front end shake 47-52MPH

I have a hell of a shake in the front end of my 02 TJ. I replaced the front track bar had my tires balanced and replaced about every tie rod in the front end and nothing has helped. I assume it is a bushing or something. Its the only thing not replaced yet. where should I start now? thanks for any help I get. to me it just seems so odd that it is from 47-52 MPH and not any other time.

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Old 09-03-2013, 07:29 AM   #2
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Commonly known as death wobble. Have you recently rotated your tires or are the front tires worn to a point where they need replacing?

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Old 09-03-2013, 07:36 AM   #3
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Can you get it to go away by going faster than 52? If so it's not DW. Death Wobble is so violent that I promise you wouldn't want to go any faster when it starts. Have you gotten your tires balanced perfectly? If the shop is getting them "close enough" that's not good enough. Also, get someone to turn the wheels back and forth rapidly and to full steering lock while you lay under the jeep. Look, listen, and feel for slop in the steering anywhere. Check everything such as the trackbar, tie rod, drag link, and the control arms.
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Old 09-03-2013, 07:38 AM   #4
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Yours is a 2002, and I'll bet you have over 60k miles on it. The stock control arms on our jeeps are complete garbage and should just be replaced. You mentioned bushings, I'd start with the front lower control arms. New OEMs are cheap and not hard to replace. Just get new bolts for the axle end and get your sawsall warmed up..
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Old 09-03-2013, 07:49 AM   #5
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Can you get it to go away by going faster than 52? If so it's not DW.
You can accelerate out of DW, granted you are correct you really wouldn't want to. My brother in law has owned a fair share of beat pos Chevys/GMCs/etc and a few have had bad DW that we've accelerated out of.
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Old 09-03-2013, 07:52 AM   #6
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You can accelerate out of DW, granted you are correct you really wouldn't want to. My brother in law has owned a fair share of beat pos Chevys/GMCs/etc and a few have had bad DW that we've accelerated out of.
Well then it's fair to say you've got bigger coconuts than me. When my jeep had DW, the only thing I wanted to do was be at a full stop, and it shook the whole way from the time it started till I was dead stopped.
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Old 09-03-2013, 08:00 AM   #7
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It goes away at 52. From 52 up nice and smooth again.
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Old 09-03-2013, 08:01 AM   #8
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It goes away at 52. From 52 up nice and smooth again.
Well the speed range doesn't really matter. The only thing that matters is the fact that it's a speed sensitive shimmy. Is it also triggered by bumps in the road?
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Old 09-03-2013, 08:13 AM   #9
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Well the speed range doesn't really matter. The only thing that matters is the fact that it's a speed sensitive shimmy. Is it also triggered by bumps in the road?
New brake rotors fixed my death wobble. Think when I had the tires balanced they over torqued the bolts. They were the original rotors.
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Old 09-03-2013, 08:26 AM   #10
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I replaced the trackbar, tie rod, drag link and Tires balanced. Bumps does not affect it at all. the only thing that I noticed is if I am going down a steeper hill it is worst then going up hill. I don't think it is rotors. if I get on the breaks real hard it stops. I don't know it that's due to braking or the fact it slows me down and I am out of that speed range. I think I will try control arms next I guess.
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Old 09-03-2013, 08:37 AM   #11
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Go to a different tire shop and tell them you need the wheels balanced perfectly by road force balancing. There has to be zero wobble. A speed sensitive shimmy is almost always an imperfectly balanced wheel.
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Old 09-03-2013, 08:41 AM   #12
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If I were you, before I started throwing parts at it, try swapping the front and back tires. If it goes away, then you know it's a balancing/wheel/tire issue. If not, then it's most likely a worn part in the suspension.
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Old 09-03-2013, 08:49 AM   #13
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If I were you, before I started throwing parts at it, try swapping the front and back tires. If it goes away, then you know it's a balancing/wheel/tire issue. If not, then it's most likely a worn part in the suspension.
Sorry I forgot to add I rotated the tires with zero change in the shake. What had me start throwing parts at it was when it shakes you can feel it shake side to side and doesn't seem to be up and down or anything like that.
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Old 09-03-2013, 08:51 AM   #14
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I had a problem just like that. For me I ha to replace the stabilizer bars. Both the bushings had worn on them and the rods popped right out. Since replacing them it hasn't happened
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Old 09-03-2013, 09:02 AM   #15
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I had a problem just like that. For me I ha to replace the stabilizer bars. Both the bushings had worn on them and the rods popped right out. Since replacing them it hasn't happened
Stabilizer bars?
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Old 09-03-2013, 09:14 AM   #16
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I agree with others regarding out of balance tires but also have your alignment checked if you haven't done so. If you have uneven worn tires, there's a good chance it will never balanced right regardless of how many shops you take it to.
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Old 09-03-2013, 09:29 AM   #17
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Post some pictures of your control arm bushing up here. Along with other steering components. Then we can tell you if something is obviously worn. And definitely do the steering test I mentioned. It's very effective. I've done it a few times myself.
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Old 09-03-2013, 09:31 AM   #18
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I had a problem just like that. For me I ha to replace the stabilizer bars. Both the bushings had worn on them and the rods popped right out. Since replacing them it hasn't happened
If you mean the steering stabilizer, getting a new one will only mask the real problem. And if you've got more than 1 on your steering, you're doing it wrong. If you're referring to the control arms, carry on.
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Old 09-03-2013, 11:03 AM   #19
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Last one is upper
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Old 09-03-2013, 11:32 AM   #20
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I guess I got lucky. My rig would shake violently from 45-55mph. Got new tires on the front and the problem was solved.
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Old 09-03-2013, 11:47 AM   #21
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What tires do you have and how many miles on em?? Just because those tires balanced, don't assume they are good.
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Old 09-03-2013, 11:50 AM   #22
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What tires do you have and how many miles on em?? Just because those tires balanced, don't assume they are good.
Mtr on the rear and some Firestone destinations or whatever on the front. Mtrs are new and there is a lot of tread on the firestones. I plan on switching them out though.
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Old 09-03-2013, 11:58 AM   #23
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Mtr on the rear and some Firestone destinations or whatever on the front. Mtrs are new and there is a lot of tread on the firestones. I plan on switching them out though.
I was asking the OP....
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Old 09-03-2013, 12:04 PM   #24
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Right... I'll just butt out now😔
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Old 09-03-2013, 12:11 PM   #25
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What tires do you have and how many miles on em?? Just because those tires balanced, don't assume they are good.
Good year wrangler authority. Over have life left on them. Wear nice and even also. Had alignment done 3000 miles ago
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Old 09-03-2013, 03:46 PM   #26
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Bump
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Old 09-03-2013, 04:17 PM   #27
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Interesting! I have the same thing. This sucks! I was told to do an alignment and balance then rotate the tires. I have good year duratracs. I initially thought it was the wheel bearing on the driver side but I was told that it probably isn't. Does yours "knock" or pop when you rotate your wheels full left. I had my jeep lifted from the driver side and put it in 4 lo. I slowly let go of the brakes and when I turned full left it would pop pop pop. Full right didn't do that but could be because I had the right wheels on the ground.
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Old 09-03-2013, 04:31 PM   #28
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The CA in second picture you posted looks like it might be getting a little worn out but there's nothing I can see there that says they're shot. Do you have steel or alloy wheels?
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Old 09-03-2013, 05:45 PM   #29
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A lot of stuff in the suspension and driveline can cause vibrations to start, bad u joints in the drive shafts or front axles, wheels out of balance or rims bent, warped rotors, bushings worn and the latest that I would have never suspected was the splines worn out on a drive shaft. I am sure there are more things that could cause wobble though.
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Old 09-03-2013, 05:56 PM   #30
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Interesting! I have the same thing. This sucks! I was told to do an alignment and balance then rotate the tires. I have good year duratracs. I initially thought it was the wheel bearing on the driver side but I was told that it probably isn't. Does yours "knock" or pop when you rotate your wheels full left. I had my jeep lifted from the driver side and put it in 4 lo. I slowly let go of the brakes and when I turned full left it would pop pop pop. Full right didn't do that but could be because I had the right wheels on the ground.
No pop in mine. Just this darn shake.

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