1997 TJ - oil leaking! - JeepForum.com

 
LinkBack Thread Tools
post #1 of 7 Old 05-25-2010, 02:03 PM Thread Starter
97TJfish22
Registered User
1997 TJ Wrangler 
 
Join Date: May 2010
Location: Ohio
Posts: 4
1997 TJ - oil leaking!

Ok so I recently purchased my first Wrangler and, from what I have read, am experiencing some of the typical problems a jeep owner deals with. I bought it two weeks ago, and since then, have replaced the radiator, distributor cap and rotor, pulgs/wires, air filter, and changed the oil in both diffs and the engine.

This is what I have:
97 TJ - 2.5L 4cyl - 5sp Manual - 6" lift and 33x12.5in Coopers STTs
Otherwise it is STOCK.

Anyway, after the oil change, done by a local auto repair shop, I noticed a small about of oil (drops, no stream) leaking from the bottom of the motor. More specifically, the lip on the transmission bell housing. Obviously I took it back to the repair shop and they proceeded to blame everything under the sun for why it is leaking. Regardless of their suggestions, I can tell you this about the leak:

1) The valve cover gasket is new - no wetness at or below this line
2) The head gasket could be old - however, there is NO fresh oil running down the sides or front of the motor
3) There is no oil around the oil pan gasket
4) From a cold start to full temp (about 180 degrees) under idle, no leaking - only when I drive the jeep does oil appear to leak and subsequently shoot all over the front of the trans/skid plate
5) The majority of the oil leakage appears to be running down the front of the trans/inspection box
6) The fluid is BROWN - no red/green

Since it is lifted 6", it is very easy to crawl under and inspect the motor/trans. The repair shop cleaned everything off so you would think it would be easier to pinpoint the leak - all this did was prove out leaking points at or above the head gasket - but I cant be sure.

Ok, this is where I may be shooting myself in the foot here but I am going to mention the REAR MAIN SEAL. I am thinking this is the culprit. What is wierd is that before I took it in for the oil change, I had NO LEAKING problem. What could have happened is that the last owner put a heavier wieght oil to "stop/slow down" the leak and when they replaced it with 5w30, the leak resurfaced - any truth to this?

At this point I am looking for EXPERT advice on what could be the issue - I will try to answer questions if I havent provided enough information above.

Thanks and HELP!!!!!

97TJfish22 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 05-25-2010, 02:08 PM
TheBoogieman
Disturbed.
 
TheBoogieman's Avatar
2003 TJ Wrangler 
 
Join Date: Aug 2006
Location: CharlottesHELL
Posts: 33,139
TheBoogieman is online now  
post #3 of 7 Old 05-25-2010, 02:17 PM Thread Starter
97TJfish22
Registered User
1997 TJ Wrangler 
 
Join Date: May 2010
Location: Ohio
Posts: 4
I have seen those instructions, but aren't they for a 4.0L? From what I have read, the 2.5L sawp out is possibly longer and more difficult - like pulling the trans - but I have yet to come across a good set of instructions.
97TJfish22 is offline  
post #4 of 7 Old 05-26-2010, 09:25 AM Thread Starter
97TJfish22
Registered User
1997 TJ Wrangler 
 
Join Date: May 2010
Location: Ohio
Posts: 4
Anyone ever heard of adding a heavier wieght oil to slow/stop the leak? It's got 5w30 in it, thinking of going to 10w30 synthetic and adding lucas oil stablizer.
97TJfish22 is offline  
post #5 of 7 Old 06-23-2010, 06:31 PM
scottbr
Registered User
1997 TJ Wrangler 
 
Join Date: Jun 2010
Location: Charleston, SC
Posts: 335
Slightly heavier weight oil really won't do any good leak-wise, and synthetic will leak more than regular dino oil.
scottbr is offline  
post #6 of 7 Old 04-27-2012, 07:46 AM
citadeltango26
Registered User
1997 TJ Wrangler 
 
Join Date: Nov 2010
Location: mission
Posts: 23
I see this post is old but I too had the same problem. My jeep is a 4.0 and what I did was run that "STOP LEAK" stuff that includes stopping leaks for the rear main seal. I cleaned off the oil and ran the jeep about 200 miles and the leak stopped. I was surprised because I was certain that it wouldn't work but it did. It could be worth a try rather than changing out the seal.
citadeltango26 is offline  
post #7 of 7 Old 04-27-2012, 09:03 AM
duckman1
Registered User
2006 LJ Wrangler 
 
Join Date: Jun 2009
Location: CA
Posts: 261
I noticed mine leaked at the rear main after my last oil change, I had switched to Mobil 1 syn. I will be switching back to the dino oil in a couple of weeks to see if it stops it.

Duckman1
duckman1 is offline  
Reply

Tags
1997 tj , 2.5l , oil leaking , rear main seal

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
1997 Jeep Wrangler - Front Axel Leaking MrHappy TJ Wrangler Technical Forum 0 03-08-2008 01:10 PM
Looking at 1997 Jeep25 TJ Wrangler Technical Forum 5 08-04-2007 11:39 AM
Used 1997 - Tell me what you think (before I buy) frankjg TJ Wrangler Technical Forum 9 03-11-2006 10:27 PM
1997 2.5 RPM sag rluening TJ Wrangler Technical Forum 6 04-15-2005 06:49 AM
1997 Tj sulaco TJ Wrangler Technical Forum 4 08-09-2002 01:39 PM

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