Popping/clunking sound. Not u joints... - 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 09-19-2012, 11:47 PM   #1
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
Popping/clunking sound. Not u joints...

Found a similar thread but mine does this from start and not after a few miles. Here is the skinny on it, thankful for any ideas.

Did a little offloading this weekend , teaching my girls some dos and donts. Mild trails nothing crazy. Did winch out and pull out a couple other rigs on this outing. Jeep is stock with slightly bigger than stock tires, no other mods. I notice a clunking, popping type sound when I turn the wheel either way, forward and reverse. Never straight. Do not notice it at any other times than low speeds. Took it and had it checked and mechanic could not locate the sound. I did have to change the rear pinion seal after my outing as it was leaking, but that is finished and did not correct the noise. Now here is the good part. I am a single dad of 3 little girls so " help" is limited. I had my 11 year old drive in the pasture and my other 2 sit on my legs in the passenger seat as I hung out the door upside down to try and pinpoint the sound. a sight I am sure.. Anyhow, best I can tell the popping is coming from the very back of the t-case where the rear driveshaft goes in to it. It only does it a few times then stops and is not consistent in how many times or how loud etc. I cannot replicate the sound by bouncing on the jeep. Any ideas ? I really appreciate any input or thoughts . Thank you in advance.

johnnybishop is offline   Quote Quick Reply
Old 09-20-2012, 12:20 AM   #2
Creepy Crawler

WF Supporting Member
 
BLK00TJ's Avatar
 
Join Date: Nov 2010
Posts: 3,194
Try disconnecting the rear drive shaft and drive around for a day or two in 4H. My first guess was TC linkage binding but that is usually from a body lift.

__________________
Wheel. Break/Test. Repair/Upgrade. Repeat
BLK00TJ's YouTube Channel -- BLK00TJ's Build
BLK00TJ is offline   Quote Quick Reply
Old 09-20-2012, 12:40 AM   #3
Nerf gun assassin

WF Supporting Member
::WF Administrator::
 
distortedtj's Avatar
 
Join Date: May 2005
Location: yep right there.
Posts: 21,368
Send a message via Yahoo to distortedtj
I'd take a look at the transmission mount if that is where you are hearing the noise.
distortedtj is offline   Quote Quick Reply
Old 09-20-2012, 12:50 AM   #4
RossRacing7x

WF Supporting Member
 
Kota7x's Avatar
 
Join Date: Jul 2011
Location: 93105, 92677, 92004
Posts: 1,611
How close are your bumpstops to the side of your springs? Mine were close enough that the bumpstop would catch the spring and make a popping noise. It usually happened when getting off the driveway.
__________________
Sure you can follow... If you can keep up!!!
- 2004 Jeep Wrangler LJ 4.0
Kota7x is offline   Quote Quick Reply
Old 09-20-2012, 09:47 AM   #5
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
I will check all mounts this evening. I can't imagine it is the bumpstops but I will check that too.
johnnybishop is offline   Quote Quick Reply
Old 09-20-2012, 09:57 AM   #6
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
Thanks for the input, I will post my findings.
johnnybishop is offline   Quote Quick Reply
Old 09-20-2012, 07:24 PM   #7
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
No luck.
johnnybishop is offline   Quote Quick Reply
Old 09-20-2012, 07:26 PM   #8
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
Bumpstops are clear, mounts look fine and are snug. Failed to mention that it will not come out of 4wd immediately, eventually it does but not as soon as it use to. Any thoughts?
johnnybishop is offline   Quote Quick Reply
Old 09-20-2012, 07:31 PM   #9
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
There is an electrical plug on the back of the t-case, is this how the 4wd is activated? Is it possible that the 4wd is not fully deactivating and the gears are attempting to grab and that is the noise? Would this also have anything with the rear pinion seal giving out ? Thanks in advance
johnnybishop is offline   Quote Quick Reply
Old 09-20-2012, 08:47 PM   #10
Jeeper
 
Join Date: Jun 2012
Location: Illinois
Posts: 126
subscribed. still having this problem myself.
cory05tj is offline   Quote Quick Reply
Old 09-20-2012, 09:07 PM   #11
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
Took the small tranny skid plate off to get a better look from the front side. Found nothing that jumped out at me. decided to check the fluids in the tcase, after breaking 2 allen wrenches had to run to the parts house and pick up a new set. Put the plate back on to go and so far no noise???? I can't believe the sound was a loose skid plate, although the 2 small bolts were looser than I thought they should be. makes no sense as I am certain is was coming from the rear of the t-case. I will pray it is corrected. Maybe i got lucky on this one, not my MO but I will take it. Cory, I would suggest checking every bolt you can reach if you haven't yet. If something changes i will post. Still gonna check the fluids tomorrow.
johnnybishop is offline   Quote Quick Reply
Old 09-21-2012, 12:28 AM   #12
RossRacing7x

WF Supporting Member
 
Kota7x's Avatar
 
Join Date: Jul 2011
Location: 93105, 92677, 92004
Posts: 1,611
Quote:
Originally Posted by johnnybishop View Post
Took the small tranny skid plate off to get a better look from the front side. Found nothing that jumped out at me. decided to check the fluids in the tcase, after breaking 2 allen wrenches had to run to the parts house and pick up a new set. Put the plate back on to go and so far no noise???? I can't believe the sound was a loose skid plate, although the 2 small bolts were looser than I thought they should be. makes no sense as I am certain is was coming from the rear of the t-case. I will pray it is corrected. Maybe i got lucky on this one, not my MO but I will take it. Cory, I would suggest checking every bolt you can reach if you haven't yet. If something changes i will post. Still gonna check the fluids tomorrow.
If it does come back make sure to check your Tcase linkage. There is a post right below the lever on the drivers side of the Tcase that has a bushing that wears out over time. It can cause this post to become loose and make a clunking sound. Mine got so bad that it actually pulled the post out of the side of the Tcase and I got stuck in neutral. All I had to do was hold the post in while someone pushed down on the lever to get it back into 2wd. Might want to check it out.
__________________
Sure you can follow... If you can keep up!!!
- 2004 Jeep Wrangler LJ 4.0
Kota7x is offline   Quote Quick Reply
Old 09-21-2012, 08:19 AM   #13
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
I will check it out . Thank you
johnnybishop is offline   Quote Quick Reply
Old 09-21-2012, 08:36 AM   #14
Jeeper
 
jasonduke5's Avatar
 
Join Date: Sep 2011
Location: Williamsport P>A
Posts: 434
I would try your front sway bar links. Mine did the same thing and and as soon as i replaced them it stopped. Looking at them i couldnt tell there was anything wrong with them. When i took them off one fell apart and the other wasnt seating right at the joint.
jasonduke5 is offline   Quote Quick Reply
Old 09-21-2012, 10:14 AM   #15
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
I will check those after work, thanks Jason. I did notice the other day when i changed the pinon seal that the pinion yoke, I think that is what it is called, had some play in it. Slight play left to right and up and down. I am not experienced enough to say for sure but i wouldnt think it should have any play. I think my issue is related. Maybe a bearing going bad perhaps? My thought is this. I think that while out wheeling last weekend i managed to force some dirt/mud/earth whatever in to the seal causing it to leak and drove it for a few days with lower than normal fluids in the rear diff. This probably messed up some other stuff ( not a differential guy) i am sure. maybe teeth inside did not have proper lube and were grinding a bit? The fact that my noise was coming from the output area of the t-case leads me to think it is related as they are connected obviously
johnnybishop is offline   Quote Quick Reply
Old 09-22-2012, 10:09 AM   #16
Jeeper
 
Robertb's Avatar
 
Join Date: Jan 2012
Location: Eagle Id
Posts: 67
Had the same problem. Replaced the transmission mount even tho it looked good. Problem solved!
Robertb is offline   Quote Quick Reply
Old 09-22-2012, 01:49 PM   #17
Jeeper
 
johnnybishop's Avatar
 
Join Date: Sep 2012
Posts: 96
Thanks Robert, guess that would be easy enough to change out and being 6 years old probably a good idea.

johnnybishop 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:
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




Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 11:16 AM.



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