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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > Still got Death Wobble after muchos replacements.

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Unread 04-17-2013, 01:35 PM   #1
slickslack
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Still got Death Wobble after muchos replacements.

so after adding/replacing:

-TRE w/ Napa premium parts
-upper/lower BJ also napa premium
-JKS adjustable track bar
-OME coils front and rear
-bilstein 4 5100s
-front end alignment


i still had to pull over on the interstate after hitting a small bump that sent it into a frenzy.

i have not replaced the control arm bushings or the pitman arm or any steering component above the pitman.

i also think it could be a crappy rough country steering stabilizer that i put on right after i bought it a yr and a half ago.

am i missing any other possibles?

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Unread 04-17-2013, 01:56 PM   #2
Crasher
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Did you replace the 14mm tracking bar bolts with 9/16" bolts? The stock 14mm bolts are loose in the brackets and TB. They also need to be tightened to 125+# of torque. The steering stabilizer is not the cause. No SS is needed if all steering components are tight and not worn. With the wheels on the pavement, have someone move the steering wheel back and forth while you watch for any movement or flex in the steering joints. It doesn't take much to setup DW. Check that the toe-in is 1/8", replace the drag link ends, and be sure the tire pressures are correct. It can sometimes be a problem finding the cause, but there is always a reason for instability in the front suspension and steering.
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Unread 04-17-2013, 01:59 PM   #3
Dyn0mitemat
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Like said above the his bolts need to be tight as hell or get something bigger, they do have a bit of play if you buy the kid trackbar and just bolt it up without paying attention to torque.

Have someone grab the top of a front tire and shove the vehicle back and forth as hard as they can (side to side that is), and get under it and check things out. I bet you your axle end trackbar bushing is moving side to side a bit on the bolt (put your finger over the track bar end and the bracket as its being moved and you should be able to feel if there's any play).
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Unread 04-17-2013, 10:24 PM   #4
ratmonkey
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control arm bushings are next on the list. i would have gone after them before ball joints unless the joints were visibly bad.
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Unread 04-17-2013, 11:47 PM   #5
kg6mov
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Do control arms, whole things, don't bother trying to get the bushings out. That and the trackbar were the fix for me.
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Unread 04-18-2013, 07:36 AM   #6
slickslack
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thanks fellas! i meant to include new drag link ends in with the TREs.

i'll check the track bar bolt up, do the front wheel shake, and start saving up for some control arms.
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Unread 04-18-2013, 08:41 AM   #7
PolkaPower
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It's NEVER the steering stabilizer!
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Unread 04-19-2013, 08:43 AM   #8
slickslack
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any suggestions on which brand/store for CAs? which to avoid?
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Unread 04-19-2013, 09:42 AM   #9
PolkaPower
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I got Moog arms with the bushings in them from www.rockauto.com
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Unread 04-19-2013, 11:00 AM   #10
fisher1630
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control arms and also check to make sure your tires are balanced.
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Unread 04-19-2013, 11:04 AM   #11
WhiteOut
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Quote:
Originally Posted by fisher1630 View Post
control arms and also check to make sure your tires are balanced.
Care to explain how, with trackbar and control arms in good shape and holding the axle in position, an unbalanced tire will cause the uncontrollable oscillation of the front axle.
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Unread 04-19-2013, 12:44 PM   #12
JohnnyZJ
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tires don't cause death wobble.

otherwise everytime i leave from wheeling, the 20 lbs of mud stuck in my tires/wheels would likely set my jeep into a frenzy on the high way.

but it doesn't............
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Unread 04-19-2013, 01:56 PM   #13
Oldfrog
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It may have already been said...but double check the driver's side track bar mount for tightness. ( they are vertical bolts) Go ahead and put a wrench on the bolts and try to tighten them a little. They may "appear" tight, when they are actually loose. Also, look inside the driver's side wheel well and you'll see some nuts in front of the spring there that need to be tight too.
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Unread 04-19-2013, 06:40 PM   #14
durango-bob
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Bad unit bearings can also contribute to the problem. But a dry steering test (someone turning the steering wheel back and forth a bit while you look at the moving parts for slop) has always help identify items that need to be tighter.
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Unread 04-19-2013, 07:57 PM   #15
buttersjeep90
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Quote:
Originally Posted by JohnnyZJ View Post
tires don't cause death wobble.

otherwise everytime i leave from wheeling, the 20 lbs of mud stuck in my tires/wheels would likely set my jeep into a frenzy on the high way.

but it doesn't............
not always true about tires don't cause death wobble. i had death wobble and i took it to a few tire shops and had them look at my tires, and alignment. my passenger side tire wasn't balanced. they balanced it and death wobble went away.
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