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Old 11-09-2015, 07:19 PM
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DW On My JKU ?

So, about a month ago I bought a 2013 JKU with 30k miles with I think a 3 inch lift and 35's. It drove good until yesterday. When I hit a couple bumps going about 60 down the highway I get the death wobble. It shook frigging violently and kinda scared me. So, today I called the dealer and the service advisor tells me he knows about the DW and every time it has been because of the tires, and said they won't warranty the tires under my certified preowned. I called b.s. in the tires being the problem. I can move the track bar up and down about an inch. Is that supposed to happen? Service advisor said that is normal. Help!

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Old 11-09-2015, 07:25 PM   #2
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I can move the track bar up and down about an inch. Is that supposed to happen? Service advisor said that is normal. Help!
No, definitely not normal. No link in the suspension system should have any 'play' in it like that. If he continues to tell you it is normal, ask him politely to humor you and have a Tech show you the same movement on a new JKU on the lot.

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Old 11-09-2015, 07:27 PM   #3
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There's some good info. here. Tires are only one aspect of a possible issue. Jeep Death Wobble
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Old 11-09-2015, 07:29 PM   #4
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Are you sure you weren't grabbing the drag link or tie rod? Those will flop back and forth quite a bit.
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Old 11-09-2015, 07:52 PM   #5
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Are you sure you weren't grabbing the drag link or tie rod? Those will flop back and forth quite a bit.
^^^ This is correct.

IF it IS your trackbar than that bad boy needs to be torqued down to 125 ft. lbs on both ends. Be mindful of the frame mount track bar bolt. You need a 21 mm wrench and 21 mm socket to tighten. The axle trackbar mount you only need

If the trackbar is loose, I would check your other suspension components for play as well. Definately read Planman's DW guide. It is a gem. Look at Planman's DW guide on Youtube as well. It is a good visual.
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Old 11-09-2015, 07:53 PM
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Service Advisor said it moves an inch or two on all jeeps including new one's. I'm pretty po'd with him.
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Old 11-09-2015, 07:54 PM   #7
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^^^These videos will help you understand DW!!!!!
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Old 11-09-2015, 07:55 PM
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Potatohead, pretty sure it was the track bar after watching YouTube videos, but I'll watch another video to double check.
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Old 11-09-2015, 07:58 PM   #9
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^^^Track Bar!
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Old 11-09-2015, 09:44 PM
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Great pic! Correction, tie rod and drag link are moving a lot.
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Old 11-09-2015, 10:22 PM   #11
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Great pic! Correction, tie rod and drag link are moving a lot.
That's normal. There are ball joints (tie rod ends) on those and they will flop back and forth. The track bar is the one with the big u bend in it above the diff, that should be very stable.
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Old 11-10-2015, 07:34 AM   #12
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Great pic! Correction, tie rod and drag link are moving a lot.
They move a lot. Check torque on that track bar or have somebody check it for you. That is about 90 or 95% of all death wobble issues from what I have seen. 125 as previously stated.
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Old 11-10-2015, 08:13 AM
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I tried to move the track bar, but it is tight. I'm going to take it to a dealership by my house and have them check the torque. Thanks for the help everyone.
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Old 11-10-2015, 08:24 AM   #14
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I tried to move the track bar, but it is tight. I'm going to take it to a dealership by my house and have them check the torque. Thanks for the help everyone.
Harbor freight 1/2 torque wrench $15
You should have one for periodic maintenance.
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Old 11-10-2015, 08:57 AM   #15
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Do the steering test as seen in the planman youtube videos. I just went through this and it was very easy to identify the worn out parts.
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Old 12-06-2015, 06:20 PM
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Update, well I found play in the axle side track bar. I had a shop install the Pro Comp Adjustable Chromoly Track Bar, and it drove good for about 5 miles, and started the DW again. Looks like I will have to go more in depth with the planman videos. It looks like this is about to get costly because I am not very mechanical unfortunately.
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Old 12-06-2015, 06:53 PM   #17
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Update, well I found play in the axle side track bar. I had a shop install the Pro Comp Adjustable Chromoly Track Bar, and it drove good for about 5 miles, and started the DW again. Looks like I will have to go more in depth with the planman videos. It looks like this is about to get costly because I am not very mechanical unfortunately.
Did the tech check the TB holes for wear?
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Old 12-06-2015, 07:32 PM
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Did the tech check the TB holes for wear?

That's what I am wondering. I am going to call or go up there tomorrow and find out. Like a dumb a I didn't think to ask. I should have asked to see the old part also.

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