Small Leak in radiator - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on
Old 07-07-2019, 01:11 AM
Thread Starter
guamgurl's Avatar
Join Date: Oct 2018
Posts: 3
Small Leak in radiator

Hiii.. Have an 08 JK and just discovered coolant on my driveway seems I have a small leak in my radiator.. Has anyone used BarsLeak liquid aluminum or is there any other recommendations to fix without breaking my bank account 😕

guamgurl is offline   Quote
Old 07-07-2019, 04:40 AM   #2

WF Lifetime Member
WF Supporting Member
::WF Moderator::
Join Date: May 2011
Posts: 7,623
to the forum.

I moved the post for you, you should get more replies here.

The best fix is always repairing or replacing the radiator. Having said that I prefer the ginger based stop leak products, many automakers use them on the assembly line. I would try one of those, and get a lower pressure radiator cap. You'll have to hunt around for one and perhaps cross reference it from another older vehicle. You'll need a good parts guy to help, or some creative Web searching.

The lower pressure cap will help by lowering the pressure in the cooling system. The downside is the boiling point of your coolant is lowered with less pressure. That may or may not be a problem. I have done it with beaters that had no overheating problems with success.

Bottom line the proper repair is always best. Good luck.

1988 E-150 4.9L 5 Speed Stick
2008 Jeep Liberty Auto Trans
2016 JK Rubicon Hard Rock Auto Trans

God Bless Our Troops
demarpaint is online now   Quote
Old 07-07-2019, 05:06 AM   #3
Join Date: May 2017
Location: NH
Posts: 95
Were you running the AC and have condenser drips does that fluid smell like radiator fluid kind of sweet smelling.

The problem with stop leaks is that they are just a band aid and your adding a mass to you system that it meant to stop up holes and not just the one causing your leak are you sure that it was a leak and not overflow.

Could it have been your water pump weeping?

Is the jeep overheating when you drive it?

Check you overflow tank and all the hoses for cracks or holes.

When it has been sitting and cold I check my overflow tank I do this every day with my work truck we take a black marker and the normal level is marked that way a quick glance shows you if it is low mark the actual fluid level not the hot cold lines on the tank. You can also try that with the Jeep that way you can see how much you loose if any.

Get the Jeep up to temp a 15 minute drive will do that park someplace, shut it off and start looking for signs of a leak with a good flash light if you have a leak you will likely see it dripping.
Hmebuildr 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

All times are GMT -5. The time now is 05:01 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

Jeepģ, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC. is not in any way associated with FCA US LLC.