Replacing an exhaust manifold - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 09-27-2009, 10:58 AM   #1
Join Date: Jun 2009
Location: Austin TX
Posts: 36
ZZR_JOE is on a distinguished road
Replacing an exhaust manifold

Hey there. I have a 99 TJ with a 4.0 and 5 speed that I need to replace the exhaust manifold on. It broke off right above the point where the tube splits on the underside. I've read that this is a pretty common thing for this year. I got 10 years and 140,000 miles out of the original so not too bad I guess. I've seen some on ebay for around $75 and was probably going to go ahead and pick one of them up. I did a search for a write up but couldn't find anything. Does anyone have a write up on this or has anyone done it and have any tips or tricks? Any help would be appreciated.
ZZR_JOE is offline   Quote
Old 09-27-2009, 11:20 AM   #2

::WF Administrator::
4Jeepn's Avatar
Join Date: Apr 2005
Location: Florence, KY
Posts: 11,438
4Jeepn is on a distinguished road
Just get one with the expansion area's and you will be good to go. Not sure on a write up on here..

4Jeepn is offline   Quote
Old 09-27-2009, 01:58 PM   #3
IslandTJ's Avatar
Join Date: Mar 2008
Location: where I wheel: N 45º 36.663' W 123º 20.935'
Posts: 3,108
IslandTJ is on a distinguished road
  • Get a fuel disconnect tool, you'll need to remove the fuel line from the rail.
  • You don't need to remove the plastic cover over the fuel rail.
  • Invest in extra extensions and a universal to access the manifold bolts underneath.
  • Prior to reinstalling, screw the bottom bolts on just enough to catch on a few threads and install the manifold by having it sit on the bottom bolts.
  • Make sure the manifold is fully seated on the studs.
  • Use antiseize when reinstalling manifold.

Not a difficult, job. Installing my motor mounts was harder. I also purchased the $70 dollar eBay special and it's lasted me well for the past 3 years with no issues to date. I opted to purchase a better gasket (Fel-Pro) and threw away the Chinese gasket that came with the manifold.
1998 TJ Moss Green Sahara w/ numerous scratches & dents whose playground is on a tropical island that's 33 miles long and 4-12 miles wide, in year-round 82 degree weather

Edit: "Now jeepin in Oregon"
IslandTJ is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not 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
Exhaust Manifold Question jamesdeanblvd TJ Tech Forum 7 07-26-2009 10:57 PM
Broken exhaust manifold in head... YGETV8 TJ Tech Forum 14 05-28-2009 07:58 PM
Exhaust Manifold Help jeeplover TJ Tech Forum 3 02-16-2007 09:23 PM
Exhaust manifold replacement sgz2 WF New Member Check In 2 02-11-2007 11:45 PM
Exhaust manifold - 4.0 amerijeep YJ Tech Forum 3 05-02-2005 01:49 PM

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 09:36 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC
« Back

Enter your email address:

Delivered by FeedBurner