'95 ZJ Front End Pop - JeepForum.com
 
LinkBack Thread Tools
post #1 of 8 Old 03-06-2009, 10:22 PM Thread Starter
ZJeepMI
Registered User
2001 TJ Wrangler 
 
Join Date: Apr 2008
Location: Michigan
Posts: 353
'95 ZJ Front End Pop

I drove my ZJ for the second time since I bought it a few months ago (working on repairing a broken door latch) and I noticed a pretty serious noise.

Under heavy acceleration off the line a loud pop comes from the right front. It only does this off the line 1/2 throttle or more and the pop only occurs once.

Any ideas on what I should check?


2001 TJ Wrangler, 2.5l, 5 speed, Stock.
Previous Jeeps:
'98 XJ, 3.5" lift, 31" BFG A/T, Aussie Locked D30 with Alloy Shafts, 8.25 rear, SYE, Skids, JCR Front bumper, Roof Rack
1995 Jeep Grand Cherokee, 2" lift, 31's, V8, NP242...
1993 Jeep Grand Cherokee, Stock, 230K miles.
ZJeepMI is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 03-06-2009, 10:56 PM
Virmagicus
Moderator
 
Virmagicus's Avatar
1998 ZJ 
 
Join Date: Feb 2006
Location: Northern Indiana
Posts: 6,440
Check the front suspension first. Have someone turn the wheels back and forth and visually inspect for movement in the upper/lower TB. Also shake the front end from side to side....any popping? Make sure to also check the TRE's & SB bushings. Will this pop reoccur if you turn the wheel back and forth while idling ? If there were multiple pops it could be another issue.
Virmagicus is offline  
post #3 of 8 Old 03-07-2009, 01:45 AM
newfieZJ
Registered User
1995 ZJ 
 
Join Date: May 2008
Posts: 6,557
CV joint , little doubt from the descrption , heard it a zillion times on FWD cars
newfieZJ is offline  
post #4 of 8 Old 03-07-2009, 12:03 PM Thread Starter
ZJeepMI
Registered User
2001 TJ Wrangler 
 
Join Date: Apr 2008
Location: Michigan
Posts: 353
Quote:
Originally Posted by newfieZJ View Post
CV joint , little doubt from the descrption , heard it a zillion times on FWD cars
If a CV joint is bad isn't the boot ripped, or is that just sometimes?


Thanks for your help guys, I will check the suspension and the CV tomorrow, it is cold and rainy today

2001 TJ Wrangler, 2.5l, 5 speed, Stock.
Previous Jeeps:
'98 XJ, 3.5" lift, 31" BFG A/T, Aussie Locked D30 with Alloy Shafts, 8.25 rear, SYE, Skids, JCR Front bumper, Roof Rack
1995 Jeep Grand Cherokee, 2" lift, 31's, V8, NP242...
1993 Jeep Grand Cherokee, Stock, 230K miles.
ZJeepMI is offline  
post #5 of 8 Old 08-06-2009, 08:50 PM Thread Starter
ZJeepMI
Registered User
2001 TJ Wrangler 
 
Join Date: Apr 2008
Location: Michigan
Posts: 353
Alright guys, i'm resurrecting a thread I forgot about. I still need some help on this, it is pretty much the only problem my Jeep has right now.

Anyway, the popping has gotten much worse. I made a trip to the sand dunes(5 hour drive one way) a while back and on the way there it got so bad that is was popping under even the slightest throttle. But, then later after the Jeep cooled down, I got in to go to the dunes and it was back to only popping under heavy acceleration. Does this make any sense?

So, that got me thinking, maybe it is the transfer case? It has leaked a lot of fluid in the last two week(I have not been driving it), it binds pretty bad especially after long drives... Has anybody heard of a NP249 doing this?

The suspension seems tight, control arms are not visually bad or loose at all. I changed the front right CV joint and it almost seemed like the noise went to the other side but I can't really tell, it is too loud. I also replaced the track bar with a good one.

Annnddd, the drive shaft feels tight, but I suppose the CV could be bad in the driveshaft.

I don't know guys, i'm stumped... Any ideas?

2001 TJ Wrangler, 2.5l, 5 speed, Stock.
Previous Jeeps:
'98 XJ, 3.5" lift, 31" BFG A/T, Aussie Locked D30 with Alloy Shafts, 8.25 rear, SYE, Skids, JCR Front bumper, Roof Rack
1995 Jeep Grand Cherokee, 2" lift, 31's, V8, NP242...
1993 Jeep Grand Cherokee, Stock, 230K miles.
ZJeepMI is offline  
post #6 of 8 Old 08-07-2009, 01:45 AM
Virmagicus
Moderator
 
Virmagicus's Avatar
1998 ZJ 
 
Join Date: Feb 2006
Location: Northern Indiana
Posts: 6,440
It now seems that there is slack in the chain inside the TC.
Virmagicus is offline  
post #7 of 8 Old 08-07-2009, 02:48 AM
newfieZJ
Registered User
1995 ZJ 
 
Join Date: May 2008
Posts: 6,557
Your t-case is a 249 , very common are worn VC's . When worn , this sealed clutch pack binds when warmed up . Because your issue seems effected by temp . I got to say that's your issue . Mechanical gears , joints etc etc when bad , don't change symptoms .

You have a late production 95 if you have a CV frt drive shaft , it wouldn't surprise me if the popping is from that from what you say . It's symptoms are effected by the power transfer via your worn VC .
newfieZJ is offline  
post #8 of 8 Old 08-07-2009, 09:37 AM Thread Starter
ZJeepMI
Registered User
2001 TJ Wrangler 
 
Join Date: Apr 2008
Location: Michigan
Posts: 353
Thanks guys, i'm out of town right now without the Jeep but when I get home I will pull the front driveshaft. If the noise is still there then I know what it is.

2001 TJ Wrangler, 2.5l, 5 speed, Stock.
Previous Jeeps:
'98 XJ, 3.5" lift, 31" BFG A/T, Aussie Locked D30 with Alloy Shafts, 8.25 rear, SYE, Skids, JCR Front bumper, Roof Rack
1995 Jeep Grand Cherokee, 2" lift, 31's, V8, NP242...
1993 Jeep Grand Cherokee, Stock, 230K miles.
ZJeepMI 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 to Rear swap...can't I just steal front springs? allenjp ZJ Grand Cherokee Forum 12 02-08-2009 04:54 PM
front noise after removing front skid plate davets ZJ Grand Cherokee Forum 2 12-08-2008 05:54 AM
Front driveshaft too long after swapping front differential jjeeeeppss ZJ Grand Cherokee Forum 11 08-12-2008 05:19 PM
Vibration in Front End Possibly Front drive shaft??? CrazyDrivinJoe ZJ Grand Cherokee Forum 4 11-21-2007 04:56 PM
Replaced front axle/CV joint now a bad whining from front end? f1rz06 ZJ Grand Cherokee Forum 4 09-16-2004 02:48 AM

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