Leaking Coolant?? - 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 08-29-2010, 09:57 PM   #1
Jeeper
 
4x4junkie's Avatar
 
Join Date: Aug 2010
Posts: 72
Leaking Coolant??

99 TJ 2.5L , automatic , just had engine rebuilt maybe 200 miles on it now, runs great!! Just yesterday noticed coolant leaking from bottom , can't determine source but it's dripping from where tranny and engine mate, checked engine compartment and saw some coolant spray in there. Hoses look fine , radiator fine, cap is good, the reservoir is empty and radiator looks low with fluid. Was not overheating When parked it is slowly dripping , photo shows location.
Attached Thumbnails
Click image for larger version

Name:	image-3775244771.jpg
Views:	101
Size:	29.0 KB
ID:	24035   Click image for larger version

Name:	image-2619909911.jpg
Views:	108
Size:	29.1 KB
ID:	24036  


__________________
Brian Ochoa
4x4junkie is offline   Quote Quick Reply
Old 08-29-2010, 10:10 PM   #2
Deaky

WF Supporting Member
 
Fweaky's Avatar
 
Join Date: Aug 2009
Location: Central Virginia
Posts: 2,202
Images: 18
looks like maybe a freeze plug is leaking

__________________
Nothing is foolproof to a sufficiently talented fool.
Fweaky is offline   Quote Quick Reply
Old 08-29-2010, 10:34 PM   #3
Jeeper
 
4x4junkie's Avatar
 
Join Date: Aug 2010
Posts: 72
Quote:
Originally Posted by 4x4junkie
99 TJ 2.5L , automatic , just had engine rebuilt maybe 200 miles on it now, runs great!! Just yesterday noticed coolant leaking from bottom , can't determine source but it's dripping from where tranny and engine mate, checked engine compartment and saw some coolant spray in there. Hoses look fine , radiator fine, cap is good, the reservoir is empty and radiator looks low with fluid. Was not overheating When parked it is slowly dripping , photo shows location.
Ok , I'm taking it back Friday to the shop they have a 3 yr warranty on the rebuild. If it's a freeze plug , is that something u think they'll cover with the warranty.
Attached Thumbnails
Click image for larger version

Name:	image-3900163254.jpg
Views:	85
Size:	81.9 KB
ID:	24043  
__________________
Brian Ochoa
4x4junkie is offline   Quote Quick Reply
Old 08-30-2010, 10:07 AM   #4
Deaky

WF Supporting Member
 
Fweaky's Avatar
 
Join Date: Aug 2009
Location: Central Virginia
Posts: 2,202
Images: 18
Yea they should cover that. Make sure you top off the radiator and fill the overflow to the fill line before you drive it.
__________________
Nothing is foolproof to a sufficiently talented fool.
Fweaky is offline   Quote Quick Reply
Old 08-30-2010, 10:48 AM   #5
Jeeper
 
Join Date: Aug 2010
Posts: 23
I have the exact same problem in my 97 2.5L. I added some UV dye to the coolant and checked it out last night. It looks like its coming from the back of the engine, I know about the freeze plug. It looks like theres coolant around the exhaust manifold, is that could that be just the leakage from the freeze plug or could the leak be coming from the exhaust gasket?

any possibility of it being a head gasket? I have no over heating problems, just fill the coolant when it becomes low. Oil looks fine too.

I'd rather not take it to the shop, I want to fix it myself if possible. Any advice?

A update on friday when you have it check out would be great also
donofrionis is offline   Quote Quick Reply
Old 08-30-2010, 12:07 PM   #6
Jeeper
 
4x4junkie's Avatar
 
Join Date: Aug 2010
Posts: 72
Quote:
Originally Posted by Fweaky
Yea they should cover that. Make sure you top off the radiator and fill the overflow to the fill line before you drive it.
I also noticed it happened after we started using the heater for the first time since the rebuild, could it possibly have to do with the heater core?
__________________
Brian Ochoa
4x4junkie is offline   Quote Quick Reply
Old 08-30-2010, 05:47 PM   #7
Deaky

WF Supporting Member
 
Fweaky's Avatar
 
Join Date: Aug 2009
Location: Central Virginia
Posts: 2,202
Images: 18
Could be leaking at the heater core or where the hoses connect to it at the firewall.
__________________
Nothing is foolproof to a sufficiently talented fool.
Fweaky is offline   Quote Quick Reply
Old 08-30-2010, 05:58 PM   #8
Deaky

WF Supporting Member
 
Fweaky's Avatar
 
Join Date: Aug 2009
Location: Central Virginia
Posts: 2,202
Images: 18
Quote:
Originally Posted by donofrionis View Post
I have the exact same problem in my 97 2.5L. I added some UV dye to the coolant and checked it out last night. It looks like its coming from the back of the engine, I know about the freeze plug. It looks like theres coolant around the exhaust manifold, is that could that be just the leakage from the freeze plug or could the leak be coming from the exhaust gasket?

any possibility of it being a head gasket? I have no over heating problems, just fill the coolant when it becomes low. Oil looks fine too.
Its impossible to tell without looking it over. You don't have to have overheating problems to have a blown head gasket. You can also have a blown head gasket and not have any coolant in the oil. You could be loosing coolant into the exhaust system.
__________________
Nothing is foolproof to a sufficiently talented fool.
Fweaky is offline   Quote Quick Reply
Old 09-06-2010, 07:16 PM   #9
Jeeper
 
Join Date: Aug 2010
Posts: 23
Okay so I took the time to start pulling things apart today. As I did I could tell there was also a small oil leak the back side of the intake manifold was very dark and gunky. So I've pulled off the valve cover and noticed the back of the manifold and gasket was oily. So thats obviously going to get replaced, I also want to replace the manifold gasket since that whole area looks bad.

Now I know there is a freeze plug on the back of the engine and that might be where the coolant leak is coming from. With everything apart right now should I take a shot of just replacing that or should I dig deeper and change the head gasket as well. This is my first time doing engine work. Home much more work does the head gasket take to do?
donofrionis is offline   Quote Quick Reply
Old 09-12-2010, 12:01 AM   #10
Jeeper
 
mavrick300's Avatar
 
Join Date: Sep 2010
Posts: 394
i have the same problem with my 01 wrangler. i have to fill the coolant recovery tank about once every 2 weeks or so. we had the radiator replaced and upgraded to a 3 core so it doesn't overheat anymore but still goes through coolant. we found metal in the oil tank witch is never a good sign. any ideas?

mavrick300 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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
Mysterious leaking coolant UNCGQ TJ Tech Forum 10 05-25-2010 10:49 AM
Please tell me possible sources of a coolant leak. 05GT-O.C.D. TJ Tech Forum 5 12-07-2009 02:56 PM
My TJ is leaking coolant? Waterpump? ImThatGuy83 TJ Tech Forum 3 08-11-2009 09:41 PM
2003 TJ Burning Coolant kenpoengineer TJ General Discussion Forum 6 02-13-2009 01:22 PM
Coolant Brand and Type?? AggieChris TJ Tech Forum 2 09-11-2006 01:41 PM



» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 08:10 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