Condensate Leak
Thread Starter
Junior Member
Joined: Jan 2016
Posts: 79
Likes: 3
From: Carrollton, TX.
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0
My evap coil box, under the dash is leaking condensate to the floor.
Is this a common problem?
Also I don't know where the drain is supposed to located I have not found it.
Thank You,
Byron
Is this a common problem?
Also I don't know where the drain is supposed to located I have not found it.
Thank You,
Byron
Thread Starter
Junior Member
Joined: Jan 2016
Posts: 79
Likes: 3
From: Carrollton, TX.
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0
Also, my XJ is currently in the shop getting new headliner, windows tinted, new speakers and all new the windows are getting new gaskets and wipes.
CF Veteran



Joined: Aug 2020
Posts: 2,121
Likes: 577
From: SoCal
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0L
There is a drain tube that extends through the front of the fire wall. These often get clogged so the condensate builds up in the box until it leaks out rather than drain out the front.
CF Veteran


Joined: Dec 2017
Posts: 1,515
Likes: 411
From: San Mateo, CA
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0 Renix, stock.
Where are you buying the window wipes from? I have looked and cant find them, I got a 1990 four door laredo. I need new window wipes, particularly the outside ones. also want an opening wing window seal.
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Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Yes, sometimes it's just slopping over the top. Take a corner hard and a passenger might get a cold surprise.
Look for a short rubber tube on the firewall, about where the bottom of your AC box inside is located. Sometimes all you have to do is to move it around a bit to break up a blockage. Other times you might need to run a pipe cleaner up there.
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CF Veteran




Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
That small slit in the opening sometimes gets 'glued' shut with gunk, and all you need to to is squeeze it a few times.
Be prepared for it to pee on you.
Be prepared for it to pee on you.

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