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Unread 06-01-2013, 03:44 PM   #1
RoldGold
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A/C Water Leak - Through Frame Rail

So as I've said in a previous post, I've been reading here for a couple years but had no problems persistent or annoying enough to make a username, but as the temperatures are rising here I started to use the A/C. And it blows nice cold air, I have no complaints about that. However, the (what I'm assuming) is condensation on some component of the A/C system drains (for lack of a correct work) right through the frame rail and onto the ground. While this isn't a huge problem I don't exactly want the frame rail to constantly be sitting in wetness and also don't know if this is a sign that it will soon start leaking into the passenger floorboard, which it hasn't yet. Anyone have any comments on my problems?

Please excuse the crappy pictures, they were taken with my cheap cell phone in the parking lot of a Giant, where I discovered the water leak. And yes it is water, not coolant, its clear and doesn't smell like coolant.

0522131501-00.jpg   0522131502-00.jpg  
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Unread 06-01-2013, 03:55 PM   #2
Oldfrog
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That's where is designed to flow on some models...into the frame.
Genius, huh ?

Yours might be clogged inside with leaves and stuff, though. I do know my 97 empties into the frame right in front of the firewall by design. Freaking brilliant.
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Unread 06-01-2013, 04:03 PM   #3
a70eliminator
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Yep that's where it drains, your good. If it wasn't draining there it would more than likely be on the your passenger compartment soaking into the carpet and pad. I have no clue as to why it's engineered to rot out the frame.
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Unread 06-01-2013, 04:35 PM   #4
just_urd
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And when the system builds up enough condensation, it drips from other places as well. But yes, that's normal.
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Unread 06-01-2013, 10:00 PM   #5
RoldGold
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Quote:
Originally Posted by Oldfrog View Post
That's where is designed to flow on some models...into the frame.
Genius, huh ?

Yours might be clogged inside with leaves and stuff, though. I do know my 97 empties into the frame right in front of the firewall by design. Freaking brilliant.
Unbelievable. Idiotic really. You say that it "empties", does that imply there is a hose designed specifically to route condensation away from a component, but then the hose just stops and lets the water drip through the frame rail? So then therefore I could attach another length of hose to the end of the previously installed one and route its outlet where I want right?
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Unread 06-01-2013, 11:32 PM   #6
ghiotom
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No hose. Just a small protrusion on the bottom of the HVAC box that barely goes through a grommet or some kind of seal in the floorboard.
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Unread 06-02-2013, 06:54 AM   #7
coralman
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Problem is that where the protrusion comes out it is sorta boxed in. The water flows through small slit areas for lack of a better description into the rail. You can cut a 1.5 inch hole in the rail and attach a piece of hose to make it exit at the front of the jeep but its still wetting the rail. Was on my project list to see if I could come up with a better way and still is, but it will take some design. I was thinking along the lines of making a small resevoir with a 12v pump along the lines of a washer pump but tougher. Then you have to come up with a way to activate it, with a float switch or moisture sensitive switch. Then you could pump it wherever you wanted it to go.
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Unread 06-02-2013, 08:21 AM   #8
RoldGold
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Ok Coralman, makes sense but I'm having trouble picturing it. Got any pictures by any chance?
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Unread 06-02-2013, 08:33 AM   #9
ZeeJay1997
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Quote:
Originally Posted by coralman View Post
Then you could pump it wherever you wanted it to go.
You could pump it back to the still in the cargo bay that is powered by the exhaust.
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Unread 06-02-2013, 08:37 AM   #10
ghiotom
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Unread 06-02-2013, 09:22 AM   #11
coralman
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Hey,I said it was still in the design phase Zee! Rold here are some links.
http://www.cherokeeforum.com/f52/ac-...pet-fix-24246/
http://www.jeepforum.com/forum/f13/r...l#post11909371
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Unread 07-21-2013, 02:06 PM   #12
ElCaminoManT
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after reading threads like this, i decided to address the problem before it became a real problem. allowing the drain to discharge in the frame rail, thats pretty brilliant....

anyway, i bought the jeep in october last year after it had been sitting for about 5 years. the ac did not work and likely hadnt been used in YEARS. fixed it up last week with some new o-rings and a fresh recharge and it works GREAT! fortunately, the ac drain was not clogged and draining very well. i used a hole saw to drill a hole in the body in the fender well to access the drain tube. then using a piece of old preformed heater hose i had at the shop, it now drains outside the body and into the fender without the possibility of dribbling back on the foam seal and wetting my floor/carpet.



cant believe how much water the jeep puts out. my duramax will drop a lot of water, but the jeep is a darn water fall in comparison!
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Unread 07-23-2013, 06:56 AM   #13
RoldGold
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This is AWESOME ElCaminoMan!!!! Can you take some measurements from other points in the wheelwell so I can find the right location to drill? I'm not all that keen about just randomly drilling and hoping I hit the right spot.
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Unread 07-25-2013, 12:28 PM   #14
ElCaminoManT
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ill see about getting some general measurements when i get home tonight if i can remember (sorry, im easily distracted, lol). i actually just did a google search and using some of the pics as reference, managed to figure out pretty much where it is. some people have cut some big square holes and its rather obvious where the drain is then and i just kinda compared seam welds, curve of body form and where the little rubber holder was on the brake/abs lines. i used a 1 1/4" hole saw and did get pretty lucky that it was damn near perfect.
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Unread 07-25-2013, 01:03 PM   #15
DickDickle
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Agreed this is a great idea wish I had thought of it myself
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