2011 Front Suspension - JeepForum.com
 3Likes
Reply
 
LinkBack Thread Tools
post #1 of 66 Old 07-03-2017, 12:21 PM Thread Starter
BilletHorse
Registered User
2002 WJ 
 
Join Date: Feb 2007
Location: Zuzax, NM
Posts: 172
2011 Front Suspension Bounce

Hello!


Hereís the deal, we bought a 2011 WK2 GC that just has the mechanical suspension, and 102k miles on the clock, 5.7.

It rides well on smooth roads, but over bumpy pavement it feels like a straight axle with really bad shocks and stiff springs.

This Jeep is stock height but could use shims in the front to level it.

I was thinking it could probably be just bad struts, but the way it shakes after the bump (high frequency) it almost feels like the differential support cradle mounts are flexing, maybe control arms?

It bounces hard and rapidly after the bump and is making my wife wary about driving it, and it is her car.

I have seen complaints about this issue on the Internet but only wacky suggestions, like sway bar mounts and bad midshaft.

Do any of you have any insight into this issue?

Thanks,

Mark Huppertz

Tijeras, NM

BilletHorse is offline  
Sponsored Links
Advertisement
 
post #2 of 66 Old 07-03-2017, 05:01 PM
ColdCase
My Reality Check Bounced
 
ColdCase's Avatar
2011 WK 
 
Join Date: Sep 2009
Location: New England
Posts: 17,916
Sounds like the struts are the first place to look, and inspect ball joints, other suspension parts for wear.

I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
ColdCase is offline  
post #3 of 66 Old 07-04-2017, 11:26 AM
Jeepdaze
Registered User
2011 WK 
 
Join Date: Sep 2016
Location: Pinckney
Posts: 47
I have this exact same problem with my 2011 Limited 5.7 and have had it in to the dealer several times. Replaced struts and shocks, no difference. Dealer says everything else seems fine and can't figure it out.

It is pretty bad.
Jeepdaze is offline  
 
post #4 of 66 Old 07-04-2017, 11:50 AM Thread Starter
BilletHorse
Registered User
2002 WJ 
 
Join Date: Feb 2007
Location: Zuzax, NM
Posts: 172
Ok, thanks for the input.

Considering you changed the struts and it didn't make a difference, makes me think it is the differential cradle bushings. That is what it feels like to me.
mac93yj likes this.
BilletHorse is offline  
post #5 of 66 Old 07-06-2017, 09:40 AM
mac93yj
Registered User
1993 YJ Wrangler 
 
Join Date: Jul 2009
Location: Kansas
Posts: 23
Same problem here on my 11 hemi overland. No quadralift. Best way to feel the symptom is driving over the speed bump into my parking garage at work. Front end shakes real bad but nothing happens when back tires go over. Dealer is looking at it next week. My theory is motor transmission or diff mount being loose and allowing it to shake. I'll let you guys know what, if anything, we figure out.

Has anyone else resolved this issue? I've done some research but nobody has ever fixed the problem that I'm aware of. Thanks!
mac93yj is offline  
post #6 of 66 Old 07-06-2017, 09:51 AM Thread Starter
BilletHorse
Registered User
2002 WJ 
 
Join Date: Feb 2007
Location: Zuzax, NM
Posts: 172
The crazy part is this seems to be a common issue for at least 2011 GC's and no one seems to have solved it.
You would think Mopar would have done a recall, or at least a TSB on it.

Quote:
Originally Posted by mac93yj View Post
Same problem here on my 11 hemi overland. No quadralift. Best way to feel the symptom is driving over the speed bump into my parking garage at work. Front end shakes real bad but nothing happens when back tires go over. Dealer is looking at it next week. My theory is motor transmission or diff mount being loose and allowing it to shake. I'll let you guys know what, if anything, we figure out.

Has anyone else resolved this issue? I've done some research but nobody has ever fixed the problem that I'm aware of. Thanks!
BilletHorse is offline  
post #7 of 66 Old 07-06-2017, 09:54 AM
mac93yj
Registered User
1993 YJ Wrangler 
 
Join Date: Jul 2009
Location: Kansas
Posts: 23
Quote:
Originally Posted by BilletHorse View Post
The crazy part is this seems to be a common issue for at least 2011 GC's and no one seems to have solved it.
You would think Mopar would have done a recall, or at least a TSB on it.
Agreed. I'll keep you posted.
mac93yj is offline  
post #8 of 66 Old 07-06-2017, 10:51 AM
WindyCity
Registered User
 
Join Date: Dec 2012
Location: Northbrook
Posts: 106
I am glad mine doesn't seem to be one of the many with that issue. I will say when the stock struts were done the ride got rough, but nothing like your saying. Hope you get it figured out.
WindyCity is offline  
post #9 of 66 Old 07-06-2017, 11:11 AM Thread Starter
BilletHorse
Registered User
2002 WJ 
 
Join Date: Feb 2007
Location: Zuzax, NM
Posts: 172
It actually makes me carsick.
BilletHorse is offline  
post #10 of 66 Old 07-06-2017, 11:48 AM
ColdCase
My Reality Check Bounced
 
ColdCase's Avatar
2011 WK 
 
Join Date: Sep 2009
Location: New England
Posts: 17,916
Quote:
Originally Posted by mac93yj View Post
Has anyone else resolved this issue? I've done some research but nobody has ever fixed the problem that I'm aware of. Thanks!

You may want to look for threads where motor mounts are discussed.

I just got lost in thought. It was unfamiliar territory;
Current: 2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6
Previous: 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac
ColdCase is offline  
post #11 of 66 Old 07-06-2017, 12:06 PM Thread Starter
BilletHorse
Registered User
2002 WJ 
 
Join Date: Feb 2007
Location: Zuzax, NM
Posts: 172
Quote:
Originally Posted by ColdCase View Post
You may want to look for threads where motor mounts are discussed.
Hadn't thought of that... I guess it is... possible?
BilletHorse is offline  
post #12 of 66 Old 07-06-2017, 12:11 PM Thread Starter
BilletHorse
Registered User
2002 WJ 
 
Join Date: Feb 2007
Location: Zuzax, NM
Posts: 172
I could be a combination of everything in the front that is mounted or isolated by rubber.

Could be diff cradle, a-arms, struts, ball joints, motor mounts, everything.

That is a big pile of money.
BilletHorse is offline  
post #13 of 66 Old 07-06-2017, 12:21 PM
mac93yj
Registered User
1993 YJ Wrangler 
 
Join Date: Jul 2009
Location: Kansas
Posts: 23
Quote:
Originally Posted by ColdCase View Post
You may want to look for threads where motor mounts are discussed.
Thanks. I'm leaning toward this being some sort of mount, motor, tranny, diff. I'm going to do some more research. I also get a little wobble/ shimmy under certain conditions when turning from a dead stop which I think is related to this same problem. I've had motor mounts go out on a few of my other wranglers and the symptoms were similar. Those were a lot easier to see and work on in the garage though.
mac93yj is offline  
post #14 of 66 Old 07-06-2017, 12:30 PM Thread Starter
BilletHorse
Registered User
2002 WJ 
 
Join Date: Feb 2007
Location: Zuzax, NM
Posts: 172
This is our 4th Grand Cherokee, and I know they are still the best all around road to rocking vehicle out there. We also buy them knowing full well that they will have very annoying issues in design.
But this is particularly bad, even by Jeep standards.

Don't get me wrong, it is still worth it, but this is my Wife's daily, and it doesn't feel safe. Gotta fix it.
BilletHorse is offline  
post #15 of 66 Old 07-06-2017, 12:51 PM
mac93yj
Registered User
1993 YJ Wrangler 
 
Join Date: Jul 2009
Location: Kansas
Posts: 23
Quote:
Originally Posted by BilletHorse View Post
This is our 4th Grand Cherokee, and I know they are still the best all around road to rocking vehicle out there. We also buy them knowing full well that they will have very annoying issues in design.
But this is particularly bad, even by Jeep standards.

Don't get me wrong, it is still worth it, but this is my Wife's daily, and it doesn't feel safe. Gotta fix it.
Yup. This is my 3rd grand Cherokee. I've had 2 XJ's a YJ, TJ, And wife currently has a JK. I do all my own work except for a few items I've had to take to the dealership with the newer grand cherokees. Having all of those vehicles I'm very familiar with jeep quirks but this shake in the grand has got to be fixed and I can't imagine that we won't get it figured out. I'm just shocked at the others that have had this same issue with no resolution which makes me nervous.
mac93yj 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











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



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