JK?? Front end SHAKING - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 23 Old 12-17-2011, 10:22 PM Thread Starter
bluejunior
Hold my beer
 
bluejunior's Avatar
2001 XJ Cherokee 
 
Join Date: Jan 2009
Location: Dallas
Posts: 4,374
JK?? Front end SHAKING

So I have a friend back home (i'm away at school) who is giving me frustratingly little information on a problem, and I can't figure it out from the phone, maybe just because I only know XJ's. She's got a 4-door that she's not sure if is a 2006 or 07, i think it's an 07, and when she hits more than a minor bump at highways speed, it sometimes starts shaking REALLY badly, she says "it feels like the front end of the car is going to fall apart" and doesn't stop this until she comes to a stop and lets it sit for a minute and then takes off again. It's a certified preowned whatever and she's had it back to the dealer to be looked at multiple times about this, and they can't find anything that looks loose, worn or damaged. She said she'd heard of other people having a similar problem so I was hoping I could draw on the knowledge of Jeep Forum and see if I could find an explanation for her.

Sorry for the uncertainty on the year model, but I think its a JK, I'm not really sure when one wrangler ends and the other begins, my jeeps have both been cherokees, as have the other three jeeps i've actually laid hands on.

Thanks and Gig'Em!

bluejunior is online now  
Sponsored Links
Advertisement
 
post #2 of 23 Old 12-17-2011, 10:27 PM
Airborne4X4
Registered User
 
Airborne4X4's Avatar
1948 CJ2A 
 
Join Date: Jan 2006
Location: Jeffersonville, Indiana.
Posts: 864
It's called death wobble. Have them balance and rotate the tires.. If parts arent worn, then it's the tires.

1948 CJ2a
Airborne4X4 is offline  
post #3 of 23 Old 12-17-2011, 10:44 PM
MacK
Registered User
2015 JK Wrangler 
 
Join Date: Oct 2007
Location: Bethany Beach
Posts: 3,141
Yes, it's death wobble. Common amongst all jeeps. Usually a imbalance in your tires/front end. In my case I had a '07 2dr that did it on minor bumps, and it fixed it by getting new tires. I would rotate the tires, get a full alignment, balance, and so on. If it don't fix it, then it's something worn out. In that case, dealer needs to start replacing parts.

I don't want your d**n lemons! What the hell are these?! Demand to see life's manager! Make life rue the day it thought it could give Cave Johnson lemons! Do you know who I am? I'm the man who's gonna burn your house down! WITH THE LEMONS! I'm gonna get my engineers to invent a combustible lemon that BURNS YOUR HOUSE DOWN!

Mango Tango 2010 JK Wrangler Rubicon
Silver 2000 TJ Wrangler Sport
---
Quote:
The 2008 Jeep Wrangler is not so much an SUV as it is an experience. It's slow and loud, handles poorly, has crummy interior materials and features doors that provide virtually no crash protection. But when it comes to off-road performance, the Wrangler is simply the best choice available.
MacK is offline  
post #4 of 23 Old 12-17-2011, 10:47 PM
JLC08JK
What was I thinking?
 
JLC08JK's Avatar
2008 JK Wrangler 
 
Join Date: Sep 2009
Location: Los Angeles
Posts: 6,076
Here is the most comprehensive thread we have on the subject > http://www.jeepforum.com/forum/f96/d...bbles-1052221/
The most common cause is a loose track-bar. It may not be evident in a visual inspection, removal and inspection of the mounting bracket holes is the best way to check it out.
Good luck to her!
JLC08JK is offline  
post #5 of 23 Old 12-17-2011, 10:50 PM
jstrubberg
Registered User
2009 JK Wrangler 
 
Join Date: Jul 2010
Location: Missouri
Posts: 2,123
Death Wobble has nothing to do with unbalanced tires. 95% of the time, the bolts on the trackbar have become loose.

Someone who knows their way around a torque wrench needs to get under her Jeep and tighten everything back up before she gets hurt or suspension parts start failing.
jstrubberg is offline  
post #6 of 23 Old 12-17-2011, 10:54 PM
Airborne4X4
Registered User
 
Airborne4X4's Avatar
1948 CJ2A 
 
Join Date: Jan 2006
Location: Jeffersonville, Indiana.
Posts: 864
Where did you get your statistics?


Quote:
Originally Posted by jstrubberg View Post
Death Wobble has nothing to do with unbalanced tires. 95% of the time, the bolts on the trackbar have become loose.

Someone who knows their way around a torque wrench needs to get under her Jeep and tighten everything back up before she gets hurt or suspension parts start failing.

1948 CJ2a
Airborne4X4 is offline  
post #7 of 23 Old 12-17-2011, 11:26 PM
neverhide34
Registered User
2011 JK Wrangler 
 
Join Date: Mar 2011
Location: Howard County
Posts: 470
95% of the time, every time.

Keep Calm, Chive On
neverhide34 is offline  
post #8 of 23 Old 12-18-2011, 10:50 AM
guarnibl
Registered User
2009 JK Wrangler 
 
Join Date: Dec 2010
Location: Scottsdale
Posts: 608
Quote:
Originally Posted by bluejunior View Post
So I have a friend back home (i'm away at school) who is giving me frustratingly little information on a problem, and I can't figure it out from the phone, maybe just because I only know XJ's. She's got a 4-door that she's not sure if is a 2006 or 07, i think it's an 07, and when she hits more than a minor bump at highways speed, it sometimes starts shaking REALLY badly, she says "it feels like the front end of the car is going to fall apart" and doesn't stop this until she comes to a stop and lets it sit for a minute and then takes off again. It's a certified preowned whatever and she's had it back to the dealer to be looked at multiple times about this, and they can't find anything that looks loose, worn or damaged. She said she'd heard of other people having a similar problem so I was hoping I could draw on the knowledge of Jeep Forum and see if I could find an explanation for her.

Sorry for the uncertainty on the year model, but I think its a JK, I'm not really sure when one wrangler ends and the other begins, my jeeps have both been cherokees, as have the other three jeeps i've actually laid hands on.

Thanks and Gig'Em!
I had an issue when my steering stabilizer went out that matches exactly what you are describing (front end felt like it was coming apart). So have that checked and balance the tires (again if you haven't done it in a while).

2009 Jeep Wrangler Rubicon (6mt) (in progress)
- 42x14.50 MTR's, Custom Cage, FF D60's F/R w/ ARB's and 5.38's, 4 Link Rear, 3 Link Front, 14" RR King 2.5's, 18" RR Fox 2.5's, Fox Air Bumps
- 108" wheel base
guarnibl is offline  
post #9 of 23 Old 12-18-2011, 10:51 AM
guarnibl
Registered User
2009 JK Wrangler 
 
Join Date: Dec 2010
Location: Scottsdale
Posts: 608
Quote:
Originally Posted by jstrubberg View Post
Death Wobble has nothing to do with unbalanced tires. 95% of the time, the bolts on the trackbar have become loose.

Someone who knows their way around a torque wrench needs to get under her Jeep and tighten everything back up before she gets hurt or suspension parts start failing.
Please stop spreading false information. It only hurts other people and makes you look like an idiot. Not saying you're an idiot.

I do agree though with tightening everything.

2009 Jeep Wrangler Rubicon (6mt) (in progress)
- 42x14.50 MTR's, Custom Cage, FF D60's F/R w/ ARB's and 5.38's, 4 Link Rear, 3 Link Front, 14" RR King 2.5's, 18" RR Fox 2.5's, Fox Air Bumps
- 108" wheel base
guarnibl is offline  
post #10 of 23 Old 12-18-2011, 11:52 AM
ArticRubi
Arrogant SOB
 
ArticRubi's Avatar
2008 JK Wrangler 
 
Join Date: Aug 2011
Location: Somerville
Posts: 1,787
He isn't spreading false information. DW is caused by a loose track bar, or loose control arms, not unbalanced tires. Tires can induce a DW if suspension components are already loose, but are not causal.

Read planman's thread posted above.

Sent from my iPhone using JeepForum

From Rubicon to Icon - 4-link, Tons, Atlas Build

Build Thread

Need parts? Need product advice? Contact Jason at Krawl Off-Road
ArticRubi is offline  
post #11 of 23 Old 12-18-2011, 12:07 PM
zjilla
Registered User
2007 JK Wrangler 
 
Join Date: May 2008
Location: Mildenhall United Kingdom
Posts: 1,930
It can be caused by xx number of things. No one is going to be able to tell you exactly what it is over this forum unless they are under that jeep. Read that comprehensive link on DW (that was previously posted in this thread) and narrow it down. If u have trouble narrowing it down then I'm sure "%95" of our forum users will be more than willing to help once u start eliminating different culprits. I can assure you that it's not the steering stabilizer. If that was a bad part then it would only help the death wobble make itself more prominent but is not the cause

2007 Unlimited Sahara
98 ZJ Limited RHD (British spec)
USAF Military Working Dog Handler
www.annirlane.blogspot.com
October 2013 JK of the month
My Slowly but surely JK build thread:
http://www.jeepforum.com/forum/f96/s...hread-1562595/
zjilla is offline  
post #12 of 23 Old 12-18-2011, 02:15 PM
RockyClymer
RedRock4Wheeler
 
RockyClymer's Avatar
2008 JK Wrangler 
 
Join Date: Apr 2008
Location: Colorado
Posts: 4,793
guarnibl - when someone with actual experience and research says it DW is usually not caused by out of balance tires, a bad steering stabilizer, worn shocks or such and that it is usually caused by a loose trackbar or control arms....this has been the actual experience of many, many DW cases and cures by those on this and other forums...so, not spreading bad info, just trying to prevent the actual spreading of false info by those with no actual experience with DW on a jeep....just my 2 cents. as has been said...a consensus...Planman has undoubtedly the best writeup on this issue...you would be well advised to read/research his findings and recommendations.

08 JK 23S - Colorado Jeep Club No. 204
Too much to list - see my profile for details on build
16 JK Rubi with all the trimmings
NRA Life member
"It takes a special kind of stupid to believe criminals will follow gun laws."
I do not consider myself a smartass. I point out the obvious, search for the truth, and speak fluent sarcasm. I am, by experience, an accomplished curmudgeon.
RockyClymer is online now  
post #13 of 23 Old 12-18-2011, 03:00 PM Thread Starter
bluejunior
Hold my beer
 
bluejunior's Avatar
2001 XJ Cherokee 
 
Join Date: Jan 2009
Location: Dallas
Posts: 4,374
Thanks, after someone mentioned it I found Planman's thread on it. I'm three hours away from the jeep I'm just the only jeeper she knew to ask. As I said she's had it back to the dealer three times already to make sure everything's tightened and properly torqued, so I'll have her check alignment and tire/wheel balance next, if not that, maybe she just needs an independent mechanic to look it over. Dealers are prone to rushing cars out and missing little details.

Thanks again for all the input, I didn't mean to start any debates clearly there's a lot of different causes and therefore a lot of different views on the problem, and I really appreciate everyone's input.
bluejunior is online now  
post #14 of 23 Old 12-18-2011, 03:03 PM
MacK
Registered User
2015 JK Wrangler 
 
Join Date: Oct 2007
Location: Bethany Beach
Posts: 3,141
Quote:
Originally Posted by jstrubberg View Post
Death Wobble has nothing to do with unbalanced tires. 95% of the time, the bolts on the trackbar have become loose.

Someone who knows their way around a torque wrench needs to get under her Jeep and tighten everything back up before she gets hurt or suspension parts start failing.
My 2007 Wrangler had the death wobble. Replacing the tires fixed it, so either extremely worn tires, imbalance, or something is loose.

I don't want your d**n lemons! What the hell are these?! Demand to see life's manager! Make life rue the day it thought it could give Cave Johnson lemons! Do you know who I am? I'm the man who's gonna burn your house down! WITH THE LEMONS! I'm gonna get my engineers to invent a combustible lemon that BURNS YOUR HOUSE DOWN!

Mango Tango 2010 JK Wrangler Rubicon
Silver 2000 TJ Wrangler Sport
---
Quote:
The 2008 Jeep Wrangler is not so much an SUV as it is an experience. It's slow and loud, handles poorly, has crummy interior materials and features doors that provide virtually no crash protection. But when it comes to off-road performance, the Wrangler is simply the best choice available.
MacK is offline  
post #15 of 23 Old 12-18-2011, 04:18 PM
Metallheadd
Registered User
1998 ZJ 
 
Join Date: Dec 2011
Location: Mount Ulla
Posts: 89
I had it happen. It was induced by a warped rotor that shook bad (very bad on a long decent)then caused the axle to have death wobble. The only thing I came up with it it was due to the 12mm bolts in the 9/16ths holes as stated in the above posted link. I checked, all is tight, but I will say it has the smallest steering stabilizer that I have ever seen.
Metallheadd is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
front end shaking npv3136 JK Wrangler Technical Forum 5 10-05-2011 07:36 PM
Front end shaking please help. mudbug98 TJ Wrangler Technical Forum 0 08-23-2011 03:05 PM
Front end shaking help! kappie70 TJ Wrangler Technical Forum 2 10-23-2010 04:39 PM
88 YJ Front Shaking Neversober YJ Wrangler Technical Forum 8 07-11-2007 04:55 PM
front end shaking dsrtdog5 TJ Wrangler Technical Forum 13 04-26-2006 01:34 PM

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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome