DW - please help - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 01-09-2009, 02:59 PM   #1
Newb
 
Join Date: Jan 2009
Posts: 2
DW - please help

I bought an '05 JW Unlimited about 18 months ago. It has after market tires on it (not sure if this has anything to do with it or not). About 6 months ago I had my first experience with the DW. When I would drive between about 47 and 52 mph, the Jeep would shake violently. So, I took it in, had the tires balanced, rotated and alignment checked. Speaking of which, do I need to get all 4 aligned? The shake went completely away until just this past week. Once again between 47 and 52 mph I would experience shaking of the vehicle. Also, 75+ mph I would experience a more mild version. So, I took it in again (yes 6 months after the first alignment and balance). When they were done, as I was driving home at about 35-40mph, I experienced the worst DW ever, I seriously thought I was going to see a tire rolling off into the ditch. Cars behind me put on their brakes and the ones beside me got over a lane.

Needless to say, I took the vehicle back and got several possibilities from the owner of the place that did the alignment/balance. He said that it could be the fact that there's a gap between the diameter of the hub and the wheel; it could be that the steering dampener is bad; I think he may have mentioned a couple of other things; but since they had also rotated the tires before, this time they changed the tires back to the way they were -- rotation-wise -- and he said they checked the balance again. I haven't experienced it near as badly yet.

I checked a couple of places and have been told that they don't make hub centric rings for the vehicle/wheel I have and I can't imagine that I need to get it balanced/aligned again but I can't drive it like this. I'm getting ready to make a 2700+ mile trip. I just wish someone could tell me what it is instead of costly troubleshooting. Any ideas?? Thanks!

NLMiller is offline   Quote Quick Reply
Old 01-09-2009, 03:08 PM   #2
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,464
Images: 2
The most common trigger for DW is imperfectly balanced tires. Don't accept a tire shop's "good enough" tire balance, they truly must be perfectly balanced on a vehicle with the type of front end a Wrangler has to avoid DW.

I'm not saying this is the only cause of DW but your Jeep is new enough that I wouldn't suspect anything else at this point. One more thing to check, make sure your Trackbar is TIGHT. The passenger-side mounting bolt must be tightened to 45 ft-lbs. Also, have someone steer fully back and forth (engine running) while you watch in front to look for any unusual movement that can allow DW to develop. Pay particular attention to the passenger-side of the trackbar, it should not move AT ALL, and all the ball joints as well.

There are a lot of possible causes for DW but first, I would pay a shop to take their time to get your tires PERFECTLY balanced and see if that doesn't help a lot if not cure the problem. And the bigger the tire, the more important this becomes to keeping DW at bay. Rotating the tires is not good enough in the case of DW.

__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 01-09-2009, 03:35 PM   #3
Newb
 
Join Date: Jan 2009
Posts: 2
The back tires have significantly more tread than the front ones. So, when I took it in, like I said, they put the back ones up front. I don't know if that contributed to the DW or not but when I took it back in, they put the ones with less tread back on the front and that lessened the DW quite a bit. Does that make sense as to why that would happen?
NLMiller is offline   Quote Quick Reply
Old 01-09-2009, 04:05 PM   #4
Jeeper
 
mike76201's Avatar
 
Join Date: Oct 2008
Location: ORANGE PARK, FL
Posts: 60
First, Mr. Bransford RULES!! I had the same problem, had a 4wheelparts store "perfectly balance" the wheels and it worked, also, my steering stabilizer had come loose which added to the problem..I had my trac bar tightened and WALAH!! Crisis averted..like JB said, it is mostly the tires/tracbar...I know JB, the steering stabilzer gets ya...but mine s/b at 55ft/lbs was at 20ft/lbs..caused violent wobble at 30mph...good luck!!
__________________
IF WE COULDN'T LAUGH..WE WOULD ALL GO INSANE!!!
mike76201 is offline   Quote Quick Reply
Old 01-09-2009, 05:58 PM   #5
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 31,464
Images: 2
Quote:
Originally Posted by NLMiller View Post
The back tires have significantly more tread than the front ones. So, when I took it in, like I said, they put the back ones up front. I don't know if that contributed to the DW or not but when I took it back in, they put the ones with less tread back on the front and that lessened the DW quite a bit. Does that make sense as to why that would happen?
Did you miss everything I said above about how super-critical tire balance is to getting/preventing DW?
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 01-09-2009, 11:14 PM   #6
Jeeper
 
Bigstonz's Avatar
 
Join Date: Dec 2007
Location: Swain,NY
Posts: 295
Try googling "Yucca-man: Death Wobble". It's for a cherokee, but makes sense for all vehicles. Currie front lower control arms did the most to eliminate my problem.

Bigstonz is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 09:42 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC