need help! death wobble?
#1
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need help! death wobble?
1992 jeep cherokee 4.0 high output 5 speed and it has the death wobble? or death shake? with fab tech lift kit. new track bar, new drop pitman arm, ball joints and wheel bearings and tie rod ends all good. will an allignment fix the wobble? what other things can i check? will it drive with death wobble?
#2
Check to make sure both track bar mounts are solid and the holes aren't ovaled out that will cause motion on either end of the track bar and that will cause death wobble
#4
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
My understanding of "death wobble" is this. Somewhere in the vehicle, one or more components is worn beyond tolerances, and when oscillation initiates from a suspension "traumatic" event (hitting a bump or a pothole) or also when a vibration reaches a certain point and harmonic at a certain speed, it causes theother components to react. This is called the "multiplier effect", where one component affects one or more other components as the event travels through the front end of the vehicle.
Death wobble is not uncommon with the XJ. It is even more common with a lifted XJ. Finding the worn component or components is not always easy. It can sometimes be downright difficult. Sometimes it’s obvious. other times everything appears to be okay when you perform an inspection on a hoist, but getting the vehicle up in the air and going over everything with a fine tough comb is always a good first step. It is very helpful if you know exactly how to perform a comprehensive inspection of every single front end part, looking for abnormal wear and or play in that hardware. If you do not know how to do this type of inspection, pay an experienced professional to do it. Be sure to ask them if they are familiar with "death wobble", as not all technicians are versed in this…..
Check out the below link if you would like some extensive reading on "death wobble" causes and cures. From my research, Kevin (the author of this tutorial) is possibly the best in the business with tracking down root cause of death wobble. He does offer hardware for sale that can help resolve death wobble, but even if you don’t buy any parts from him, you can still get some excellent ideas on what to look at in resolving your death wobble.
http://www.kevinsoffroad.com/how-to-...-death-wobble/
Possible causes of death wobble are listed below. Isolating death wobble is a process of elimination and the root cause is not always obvious and it can often be caused by a combination of things! From my personal experience, I would first concentrate on the track bar and the control arms and associated bushings.
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-Front tires out of balance (try swapping fronts to rear and see if symptoms change)
-Tire pressure. Don’t laugh. It’s not a root cause but can exaggerate the problem. Experiment with lower tire pressure to see if it helps
-Improper lug nut torque on wheels
-Front alignment out of spec
-Loose track bar
-Worn track bar bushings
-Worn track bar (check for play!!)
-Bad control arms and associated bushings
-Worn/damaged steering stabilizer (not generally a cause in and by itself)
-Worn/damaged shocks
-Worn/damaged tie rod end
-Bad U Joint
-Bad ball joint
-Loose frame mount
-Steering box loose
-Bad front hub assembly
Tom Walker
#7
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Year: 1990
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Take the time to read Post #4. And rotate your tires front to rear if you haven't already. That will eliminate a faulty tire causing your issue. And don't laugh. That's quite common.
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#8
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Year: 1990
Model: Wagoneer
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Unless there is a faulty tire on the back too lol, seriously though if nothing is loose a tire rotation would be the first thing I'd try. Thats assuming that it was aligned after the lift, but if it wasn't aligned after the lift that's probably the cause.
#9
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Year: 2000
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i had dw on my 96 cherokee for 6 months and i did upgraded streering new axle ball joints and controll arm and still had it so i got alliment and new shocks and dual shock stabiler and it finailly went away but i also had 35s
#10
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Year: 2000
Model: Cherokee (XJ)
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2000 XJ 4..5 inch lift with 33's. Death wobble only appeared after new 1 ton steering installed. We had a front end alignment, rotated/balanced tires and replaced everything except the ball joints. That's our next step. Hope this works or I'm getting rid of it!!!
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Year: 96
Model: Cherokee (XJ)
Engine: 4.0
[QUOTE=Valpal;3633306]2000 XJ 4..5 inch lift with 33's. Death wobble only appeared after new 1 ton steering installed. . Hope this works or I'm getting rid of it!!! /QUOTE]
wouldnt re-installing the previous steering system (or similar) be a less drastic step ?
wouldnt re-installing the previous steering system (or similar) be a less drastic step ?