Changing the Serpentine Belt in a TJ 4.0L - 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 08-22-2009, 04:18 PM   #1
Newb
 
Join Date: Jun 2009
Posts: 11
Changing the Serpentine Belt in a TJ 4.0L

I have a 2004 TJ and am curious about changing my own serpentine belt. I have been looking for a thread or someone who might have the service manual to describe the way to loosen the system and retighten. I know there is a belt tensioner, but I have never done this particular service.

04TJRBCN is offline   Quote Quick Reply
Old 08-24-2009, 03:24 PM   #2
Jeeper
 
Jimbo's Avatar
 
Join Date: Jun 2007
Location: Jacksonville
Posts: 75
Check this thread: http://www.wranglerforum.com/f5/tj-s...ink-32200.html
I have the 2004 TJ Factory Service Manual and I uploaded it to BLACKTOOTHGRIN's share so its out there (Thanks BTG!). Should be what your looking for. I am actually going to change my serp belt pretty soon and just looked it up, seems pretty simple. Good Luck!

Jimbo is offline   Quote Quick Reply
Old 08-24-2009, 03:48 PM   #3
Jeeper
 
mudslinger150's Avatar
 
Join Date: Jul 2009
Location: Northern VT
Posts: 1,128
Images: 1
the tensioner is a 15mm bolt, loosen it up and give it a tap with a soft mallet (atleast i had to) to loosen the pully. The belt will pull right off, the new one will go right on, a little stiffer but she'll go on. for belt tension i felt what it was like b4 i took off the old one, i adjusted the new one to that same tension but a little stiffer. Dont go to stiff it will put a lot of strain on the belt, and too loose will cause the belt to slip under load. You'll get the feel for it. Once you drive around a few miles with the new belt just go ahead and check the tension again to make sure it's still where u want it.
__________________
Mitch

Vermont
The Green Mountain State

http://www.cardomain.com/ride/3821222

http://www.youtube.com/watch?v=20dGUB6uJcQ
mudslinger150 is offline   Quote Quick Reply
Old 08-24-2009, 05:32 PM   #4
Jeeper
 
HamiltonLJ's Avatar
 
Join Date: Aug 2009
Location: Mercer County N.J.
Posts: 191
There's a 1/2" square hole in the tensioner arm! Insert 1/2" ratchet pull to release tension and pop the belt off! Do the same to reinstall.
__________________
'04 LJ
33" Trxus MT's
4" Rough Country
Jeep Medic Engine skid
PoisonSpyder RockerKnockers
Rock Krawler UCAs
Schwinn Hand Throttle
Grass Roots Jeep Club President
HamiltonLJ is offline   Quote Quick Reply
Old 08-24-2009, 08:21 PM   #5
Jeeper
 
Join Date: Aug 2008
Location: Central Va.
Posts: 51
Just like Hamilton said above. Just changed mine over the weekend.
Took 5 minutes to change the belt. Easy job!

Good Luck!
rookiejeeper is offline   Quote Quick Reply
Old 08-26-2009, 09:40 PM   #6
Newb
 
Join Date: Jun 2009
Posts: 11
Thanks, found the 1/2" hole for the ratchet. Will be tackling the job this weekend. Appreciate the help.
04TJRBCN is offline   Quote Quick Reply
Old 08-28-2009, 09:43 PM   #7
Jeeper
 
MTabor's Avatar
 
Join Date: Aug 2009
Location: Detroit Suburb
Posts: 30
Quote:
Originally Posted by HamiltonLJ View Post
There's a 1/2" square hole in the tensioner arm! Insert 1/2" ratchet pull to release tension and pop the belt off! Do the same to reinstall.
YES! READ: Do not remove the pulley wheel. The tensioner arm is a spring-loaded device... all you need to do is put a ratchet or possibly a breaker bar (for leverage) and un-spring it (by going counter-clockwise, I believe). Belt should come right off.

Older TJ's like mine actually used the archaic threaded rod adjustment... which made zero sense....

will only take 5 minutes to change the belt...count your blessings!
MTabor is offline   Quote Quick Reply
Old 08-29-2009, 12:05 AM   #8
Jeeper
 
Join Date: Aug 2008
Posts: 2,473
There should be a sticker that shows how the belt turns and twists around the pulleys. If not, draw one on the hood or somewhere easily seen. It'll save alot of time trying to figure where/how it goes.

Wrap the belt around like it's going to go - use a bungie cord to pull it tight enough to hold it in place. Then when ready, use the breaker bar to swing the spring loaded pulley back, slip the belt over it, then ease it back down to tight.

Easy once you get the hang of it.

__________________
It's no wonder the country is falling apart - stupidity abounds!
rrich 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
serpentine belt tensioner macmann TJ Tech Forum 2 08-25-2009 10:32 PM
Serpentine belt replacement ????!!!!?? LMG23 TJ Tech Forum 3 07-13-2009 03:18 AM
Serpentine Belt copleydad YJ General Discussion Forum 5 06-29-2009 12:55 PM
serpetene belt -> new whine-> ? Moojamboo YJ Tech Forum 5 06-03-2009 10:37 PM
intresting info on the 4.0L TB swap... foxinthemudd General Jeep Discussion 10 03-11-2008 12:37 AM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 07:17 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