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Old 01-05-2011, 02:15 PM   #1 (permalink)
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Default very bad vibration from 50 mph & up??

At 50 + mph I have a really bad vibration that can be felt thru the steering wheel,seat,floor and everything in the zuk rattles like hell? This just started about a week ago.I have already replaced both rear U's some months ago and have new tires which I took and had a rotate and ballance this morning but the vibration is still there? Not sure if I have explained this well enough but any ideas??
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Old 01-05-2011, 07:07 PM   #2 (permalink)
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if it just started doing it out of the blue without any previous work being done on the vehicle that might have caused it, then it's most likely from something wearing out. Things that can cause something like this to suddenly happen are, broken bolt or stud on the leaf spring u-bolts, or broken sway bar mounts. Things that can cause this to happen if has been progressively getting worse are, worn bushings on the spring hangers, worn bearings in the wheels or the transfer case output, worn shocks, worn out steering damper. Just some things to look at.
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Old 01-05-2011, 07:27 PM   #3 (permalink)
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Talking vibration

hello there ... my first post on this blog

vibration can be caused from several factors

1- steering wheel vibration = check steering arm or steering stabilizer, you really would feel a big deal of vibration if you go throw a bump on the road or so,,

3- car vibrate in low speed/ high RPM check the T-case mounts ** or driveline cross garden

2- if the whole car vibrate it can be from the driveline is bent or just need to replace the X that connect the driveline arm to the axles,but if you only feel the vibration on highspeed then it could be the rear axle

P.s hope my little experience helped Good luck ,...
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Old 01-05-2011, 09:25 PM   #4 (permalink)
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When the vibrations hit, do the front wheels wobble violently from side to side? That used to happen with one of mine whenever I had a tire problem up front. It would happen if a tire was out of round (broken cord under tread), or out of balance. If the components are older and worn (joints, kingpins, bushings) then the vibrations will only get worse.
Adding a lift that changes the angle of the axle (actually the kingpins at the ends) will also throw off the balance and cause vibration. When the caster and camber changes, things get ugly. The changed driveshaft (u-joint) angles also cause driveline vibration.
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Old 01-05-2011, 11:43 PM   #5 (permalink)
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Well,it did kinda just come from no where.I did notice today that when I let out on the gas or clutching it stops then when I get back on the gas there it is again?With that being said ,if its tires it would do it no matter what ,right?I did have my tires rotated & balanced this morning but didnt help?Not sure why im thinking this but Im wondering about front wheel bearings Baratacus stated? It just feels like a different vibration than tires.I have had a vibration before but I thought it was maybe my drive shaft out of balance or something but when I went to the car wash it went a way?? Now that was odd but it didnt come back till now and its 10 x worse.Sure hope its not my T-case!!!! I just replaced the trans!!
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Old 01-05-2011, 11:51 PM   #6 (permalink)
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Quote:
Originally Posted by KJ2837 View Post
At 50 + mph I have a really bad vibration that can be felt thru the steering wheel,seat,floor and everything in the zuk rattles like hell? This just started about a week ago.I have already replaced both rear U's some months ago and have new tires which I took and had a rotate and ballance this morning but the vibration is still there? Not sure if I have explained this well enough but any ideas??

There is a few possibilities. The yoke of the tailshaft can be bent when replacing uni-joints. A faulty tire which should be detected at time of balancing. The front steering damper may be buggered. It can also be caused by a bent tyre rim. Rear tailshaft uni-joints that are buggered will cause a lot of noise and vibration at higher speeds (over 25 mph or so). Very loose front wheel bearings and buggered king-pin bearings. Grab the top of the front wheel while it is on the car and try to rock it towards you and back to the car. If it moves and makes a noise the front wheel bearing are loose or possibly king pin excessive wear.
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Old 01-06-2011, 01:26 AM   #7 (permalink)
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When it happened to me, I found it by shifting into T-case Neutral at speed and the vibration went away! Turned out to be a stiff (bad) U-joint on the intermediate shaft. I'd just replaced the rear U-joints, I just didn't go far enough.
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Old 01-07-2011, 10:59 AM   #8 (permalink)
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Well,bad news!!!! I had a buddy of mine that own a front end shop look at my zuk this morning and i just got the phone call,looks like the transfer case!!!! He said he drove it and its really bad(no joke).Any ideas??
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Old 01-07-2011, 11:00 AM   #9 (permalink)
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i forgot to add that when its in 4x4 it pops out..
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Old 01-07-2011, 11:05 AM   #10 (permalink)
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Quote:
Originally Posted by KJ2837 View Post
Well,bad news!!!! I had a buddy of mine that own a front end shop look at my zuk this morning and i just got the phone call,looks like the transfer case!!!! He said he drove it and its really bad(no joke).Any ideas??
Did he say what was bad?
Bearings?
Broken gears (like front output shaft)?
Seals?
All of the above?
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