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Unread 09-05-2013, 11:57 AM   #1
LV2DRFT
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Leaking Coolant onto Passenger Floor

I've got a little problem... I've been noticing a little coolant leak over the last few months (from "FULL" to "ADD" about every 6 weeks).

My heater and A/C have not been working for years and I don't really need them anyway.

Now I'm noticing little puddles (about 4 teaspoons worth) of engine coolant seeping in from the firewall area and collecting on the passenger floor.

I've heard of people bypassing their heaters because of an issue with the heater core... would this be a situation where doing this would help? Any suggestions? btw I like the cheapest way out for my jeep and don't need a/c or a heater because I've got redneck air conditioning (permanent summer mode jeep) and a jacket for the winter ;-)

Thanks!

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Unread 09-05-2013, 03:54 PM   #2
Terry777
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Not sure why you couldn`t just join the in & out hose to by pass the heater core before it enters the firewall ?
I don`t know if it would affect the over all pressure of the system but my guess would be it wouldn`t ???
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Unread 09-05-2013, 09:24 PM   #3
jokerchief462
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Works fine just bypass the core no ill effects on your cooling system

Sent from underneath my Jeep
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Unread 09-05-2013, 09:27 PM   #4
uberxj92
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Quote:
Originally Posted by Terry777 View Post
Not sure why you couldn`t just join the in & out hose to by pass the heater core before it enters the firewall ?
I don`t know if it would affect the over all pressure of the system but my guess would be it wouldn`t ???
It doesn't hurt anything. I do it often
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Unread 09-06-2013, 09:11 AM   #5
Speedymcracer01
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I've done the same it just saves coolant, helps keep the floorboard dry
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Unread 09-06-2013, 06:26 PM   #6
phil8825
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I had the same problem, only in my cj the heater core pretty much blew up after I replaced the water pump, I had an ocean of coolant everywhere

Bypassed it for a a few weeks until I decided to replace it the other day
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Unread 09-07-2013, 11:30 PM   #7
LV2DRFT
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Thanks for the help. I'll get to it!
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Unread 09-08-2013, 06:21 PM   #8
LV2DRFT
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I read elsewhere that you can put 2-3 inches of brass or PVC pipe inbetween the in and out hoses after disconnecting them at the firewall, and clamp them back together. The PVC pipe's external diameter has to be the same as the heater hoses internal diameter.

All that makes sense, except I have one concern, I noticed that the two hoses are different thickness. What size pipe should I then get, or is there a special piece?

Thanks
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Unread 09-08-2013, 06:34 PM   #9
uberxj92
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Get the one that fits the smaller hose. Then just use 2 hose clamps on the larger one. I've done this numerous times. There's not enough pressure to hurt it.
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Unread 09-08-2013, 08:28 PM   #10
LV2DRFT
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And sorry just one more question...

It's a 97 TJ 6 cylinder. I'm dealing with 11/16 and 5/8 I believe... I can clearly see the 11/16 on one hose, the other hose is hard to read but I think it says 5/8. I'd assume that means the interior diameter not the exterior diameter... in this case that would mean I'd be looking for a piece of 5/8 pipe. Someone wanna just confirm this for me please?

I can disconnect them to measure the ID with a ruler but then I'd have to drive it over to the hardware store after doing that. Just in case my bad luck kicks in and there's a problem after I take them out to measure, it would be good to get a confirmation on the size so I only have to mess with it once.

Thanks!
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Unread 09-08-2013, 08:38 PM   #11
LV2DRFT
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This is what I was thinking about using...

http://www.homedepot.com/p/5-8-in-Le...1#.Ui00on_pwt0



Sound about right?
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Unread 09-08-2013, 08:39 PM   #12
uberxj92
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When I do it I just take the hose in with me.
Good friend of mine tells me that they have bypass kits at part stores.
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Unread 09-08-2013, 10:25 PM   #13
LV2DRFT
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I stopped by Orielly first and picked up a heater hose coupler and 2 wormgear.

The coupler was 5/8" made by Doorman Help

Worked perfectly, and I doubled up on the 11/16 side with the new wormgear and the factory clip. No leaks and the hoses are hot for the first time in a long time.

Thanks for the help!
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