Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum > What is this leaking coolant???

Join Wrangler Forum Today

Thread: What is this leaking coolant??? Reply to Thread
Post Icons
You may choose an icon for your message from the following list:

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


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.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
07-20-2013 09:22 PM
Wesboy The heater inlet/outlet hoses are different sizes - 5/8" and 11/16" on my '97.
I purchased a short length of each size hose and joined them with a brass adapter (red arrow).
Bypass hose is routed around the air intake tube (to avoid kinks) and reconnects below (yellow arrow).
Note - original heater hoses are still in this pic, just not connected.
Ran like this for 6 months till I replaced the heater core.
Attachment 275319

Alternatively, you could disconnect the stock heater hoses at the firewall and join them with an adapter - I was having difficulty disconnecting the hoses at the firewall, so made up this bypass..
07-20-2013 08:11 PM
PitViper Wow that was quick. Thanks for the replies. Now isnt the heater coil located inside the dash? Can bypassing the heater coil be a temporary solution. I live in socal and its been in the triple digits for the last 2 months. The idea of fixing the heater just seems like a waste of time right now. LOL.
07-20-2013 07:55 PM
Dragolic I believe that is the drain from the heater coil box.

You have a leaking heater coil. Relatively easy fix. You can verify this by bypassing the heater coil and checking for any loss. Unless you live in Alaska right now.
07-20-2013 07:54 PM
Hardermods ^^ Agreed

That is the drain for the Hvac box, if you are getting a leak there and smelling coolant through your vents I would bet on your heater core leaking!
07-20-2013 07:53 PM
Neil F. That's the HVAC box drain. If you have coolant comming out there, your heater core is leaking
07-20-2013 07:45 PM
What is this leaking coolant???

I have a major coolant leak. The reservoir goes completely dry in about a months time without topping off. Its been like this for a long time. This is the only place where the coolant is leaking from. (But i also get coolant vapor blowing in from the vents.)

Cant seem to figure out what this is. If anything is supposed to have something attached to it and if it does were the other end attaches to. Its that short black pipe sticking out of the wall. Between the battery and the ac condenser.

Any ideas??

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

All times are GMT -5. The time now is 08:02 PM.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC. is not in any way associated with the Chrysler Motors LLC