Oil leak - JeepForum.com
LinkBack Thread Tools
post #1 of 3 Old 05-23-2019, 03:54 PM Thread Starter
Registered User
Join Date: Aug 2018
Posts: 2
Oil leak

I have oil leaking down the right side of my 4.0L inline six, it’s a 98’, The leak looks like it’s Coming from where the head meets the block. I was thinking my head gasket it bad, anyone have any other ideas?

Hunter121 is offline  
Sponsored Links
post #2 of 3 Old 05-24-2019, 04:49 PM
Web Wheeler
JEK3's Avatar
2006 LJ Wrangler 
Join Date: Jan 2010
Location: Fredericksburg
Posts: 3,960
One common issue with the 4.0 is that the valve cover likes to loosen up, especially in the back. Tighten all the valve cover bolts, wipe off the oil from your engine, and observe for a couple of days.
JEK3 is offline  
post #3 of 3 Old 05-25-2019, 08:05 AM
Registered User
Join Date: Aug 2018
Posts: 108
Check where the oil filter ,or any other mounts. A messy filter removal can look like most any type of leak. I'd degrease the area or better yet the whole engine first, before you start to throw money at it to confirm where the oil is from. The previous mentioned valve cover can look like all sorts of different issues too.
Goatman#1 is offline  

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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
Major oil leak Hernando KL Cherokee 2014 & up 7 03-20-2019 09:22 AM
HELP! Massive oil leak 2.5 YJ Malenlie Engines & Drivetrain 2 03-16-2019 12:51 AM
My goal is to get 25+ mpg from my 99 XJ with 30 x 9.5 R15 ATs Charley3 XJ Cherokee Technical Forum 3853 02-12-2019 09:15 AM
oil leak 2002 tj 4.0 jcrisp118 TJ Wrangler Technical Forum 5 07-28-2018 10:48 AM
Oil Leak 01saharatank Engines & Drivetrain 0 04-20-2018 11:32 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