Coolant Leak - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ 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 09-05-2011, 07:50 PM   #1
Newb
 
Join Date: Sep 2011
Posts: 4
Coolant Leak

Hey guys, first of all I just wanted to introduce myself. My name's Dave, I'm a junior at Penn State and just bought my first Jeep a month or so ago. (I also own a 96 F250 Powerstroke so if there are any Ford guys on here, you may notice me on the Ford Truck Enthusiasts forum under the same username). I've always wanted a Wrangler so when a good deal came about on one from a family friend, I couldn't turn it down. It's a 95 YJ Rio Grande (so 4cly, 5spd) with 115k on it.

Anyway, on to my question. Shortly after I bought it, it started overheating, I believe due to a radiator leak. I flushed the radiator, added that Bars stop leak stuff and it started running at normal temps again. A few days ago it started overheating again. I replaced the radiator but that didnt solve the problem. I noticed when I poured in coolant, that it would all leak out the bottom. I replaced the water pump today and assumed that was the problem, but it doesnt appear to be it. The leak is slower now, but I still cant drive more than about 3 miles without it overheating. The coolant drips off the front of the engine block somewhere near the bottom most pulley. It looks like its coming from the oil pan, but I cant pin point exactly where its coming from. I've narrowed it down to a few possibilities.

1). Blown head gasket- coolant seeping into oil and dripping out of the oil pan. Obviously I hope it's not this since that would require me doing the most work, but I'm not sure if it's that because it's dripping straight coolant, not the blackish yellow mixture I'd expect. Also, When I pull the dipstick, the oil is pretty black, it doesnt look contaminated. But I don't know a ton about blown head gaskets so it could still be that.

2). I may have damaged the water pump gasket when installing the new water pump. The gasket was a flimsy piece of junk that pretty much looked like cardboard and I noticed it had a small cut in it from the factory. The cut wasnt all the way through the gasket, but i did have to force the pump in place and its possible that I may have even screwed a bolt through the gasket. I can't be sure until I tear everything back apart tomorrow night.

Originally I considered a pinhole in a hose as a potential issue, but after driving it,the coolant started pouring out the bottom, much faster than it would out of a hole in the line. Any suggestions from you long time Jeep owners? I'm finding the tiny 4cly is a simple engine to work on, but I still haven't owned it long enough to know much about it. Any advice would be greatly appreciated.



Dvandy21 is offline   Quote
Old 09-06-2011, 10:09 AM   #2
Jeeper
 
jfbilbro's Avatar
 
Join Date: Jul 2011
Location: Central Alabama
Posts: 780
another possibility could be a cracked thermostat housing...and you can pretty much rule out that it's coming out of the oil pan....that won't happen...another possibility is a cracked block, but in all my years i've never seen a block crack on the front.......

jfbilbro is offline   Quote
Old 09-06-2011, 10:24 AM   #3
Jeeper
 
Join Date: Jan 2010
Location: Las Cruces, NM
Posts: 2,303
Have you checked the thermostat? Replace the pump gasket again and like mentioned above, check the thermostat housing for a crack. Also, was the system burped good after the radiator install? An air bubble will make it overheat.
__________________
2013 WRANGLER SPORT 2 DR., V-6 ,AUTO,HARD TOP
(Sold)1994 Jeep Wrangler 2.5L, Bestop top
/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights
Garyk is offline   Quote
Old 09-06-2011, 10:36 AM   #4
Newb
 
Join Date: Sep 2011
Posts: 4
I haven't checked the thermostat yet, but I will do that tonight. Where is it located on this engine?
Dvandy21 is offline   Quote
Old 09-06-2011, 10:44 AM   #5
Jeeper
 
jfbilbro's Avatar
 
Join Date: Jul 2011
Location: Central Alabama
Posts: 780
top front of the motor.......top radiator hose goes to it....and BTW ROLL TIDE!!....LOL (saw the Penn State thing)
jfbilbro is offline   Quote
Old 09-06-2011, 05:29 PM   #6
Newb
 
Join Date: Sep 2011
Posts: 4
Haha should be a good game this weekend, too bad PSU is going to get crushed. But thanks for your response, I'll check it out.
Dvandy21 is offline   Quote
Old 09-15-2011, 12:41 PM   #7
Newb
 
Join Date: Sep 2011
Posts: 4
Turns out it was just the cheap gasket that came with the pump. I replaced it with a higher quality one and sealed it with gasket sealer and i've had no problems since. thanks for the advice, guys.

Dvandy21 is offline   Quote
Reply

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
Arg!! Coolant Leak! Tuggin JK General Discussion Forum 13 10-21-2013 12:45 PM
Coolant Leak but can't find it mwhitingjeep YJ Tech Forum 7 11-16-2010 04:59 AM
Coolant Leak Martinez_Coins TJ Tech Forum 5 10-31-2010 09:14 AM
Please tell me possible sources of a coolant leak. 05GT-O.C.D. TJ Tech Forum 5 12-07-2009 02:56 PM
Coolant leak jeeper95yj YJ Tech Forum 9 04-24-2008 10:02 AM



Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 06:32 PM.


User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeepģ, 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