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Unread 07-23-2013, 03:44 PM   #1
musec07
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One More Question Regarding 96 Grand Cherokee AC Water Leak - Pass Side

Hello...

After a lot of research here and on You Tube... I paid my local repair shop to attempt the fix by drilling small hole in A/C case under glove box.

Reluctantly, they did it after sermonising about the necessity to tear the dash apart for a meager $1500. Which seems to be some sort of nationally "agreed upon" price to correct deficiencies in the AC condensate drain and / or blend door problems.

I still have a great amount of water coming into the passenger side of the vehicle. For now I removed all the insulation and am sopping the water up daily sometimes twice daily.

After re-reading various posts, I'm thinking the exterior drain tube may be the culprit ...here's my observation and question:

Observed:
I've felt all over the area immediately under the glovebox for a telltale moisture trail ...(the firewall is really hot!) There is no evidence that water is leaking from "above" ... water seems to pool up on the floorboard in a channeled area ...it's not a deep channel ...more like a stamped indentation.

The water collects there and runs backward and along the right side of the passenger floorboard right next to the door lamb.

Question: Is this caused by the tube in the frame outside the firewall in the wheel well being no longer serviceable?

Has anyone experienced these circumstances?

Thanks in Advance for Any Help.

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Unread 07-24-2013, 04:04 PM   #2
chris87xj
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I moved this thread to the Grand Cherokee section of the forum where your fellow ZJ drivers can best assist.
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Unread 07-24-2013, 06:51 PM   #3
unabashedpraise
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My experience was that the seal between the firewall and ac drain was failing and allowing water to come into the cab. I drilled a 2" hole in the pass side wheel well and attached a hose to the drain. Problem solved. I saw a write up, but am not sure where. Def check the write up first so that you drill in the right spot.

Also have heard of ppl having their sunroof drains leaking, may check that too if you have one.
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Help: Rear left lock doesn't lock using power locks, but will unlock. Any ideas?

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Unread 07-24-2013, 07:01 PM   #4
Candymancan
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The seal is bad around the drain tube and or your tube is clogged... Drill a hole like said... Get a metal coat hanger and ring the crap out out it... Get really far in the dash youll pull lots of crap out... Then go to home depot and buy a small rubber plug and some 5300M marine sealant... This stuff is crazy when it comes to sealing leaks.. And smear a crap ton around the seal where the fire wall is and use some to seal up the rubber plug. Also when your at home depot get a bucket or two of those absorbant crystals I forgot the name.. They sit in the bucket and suck up any water around them in the air and on stuff. and stick them next to the carpet pulled up..

Also get a knife and cut up the plastic on the insulation pull all the plastic off front to back on the bottom of the carpet.. the foam will NEVER dry with the plastic there.. trust me and when yu put it back down thinking its dry itll smell and possibly rust the floor board
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Unread 07-24-2013, 08:08 PM   #5
RoldGold
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Quote:
Originally Posted by unabashedpraise View Post
My experience was that the seal between the firewall and ac drain was failing and allowing water to come into the cab. I drilled a 2" hole in the pass side wheel well and attached a hose to the drain. Problem solved. I saw a write up, but am not sure where. Def check the write up first so that you drill in the right spot.

Also have heard of ppl having their sunroof drains leaking, may check that too if you have one.
Any chance you could take some measurements about where to drill the hole? The write-up you are referring to has pictures which are no longer available.
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Unread 07-24-2013, 08:44 PM   #6
unabashedpraise
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Found it, http://www.cherokeeforum.com/f52/ac-...pet-fix-24246/
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1998 Grand Cherokee Limited; 5.2 L, 249

Help: Rear left lock doesn't lock using power locks, but will unlock. Any ideas?

-Born once, die twice. Born twice, die once.
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Unread 07-24-2013, 09:00 PM   #7
AnotherRedZj
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Quote:
Originally Posted by unabashedpraise View Post
Score!

I'll be doing this. Mine don't even drip a drop outside, its all I. The cab!
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Unread 07-24-2013, 09:10 PM   #8
musec07
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Thank You Chris and my fellow ZJ drivers...!
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Unread 07-24-2013, 09:49 PM   #9
unabashedpraise
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This issue has been the fault of many headliners over the years...

Just be careful if you use a hole saw. The pics are hard to see, but the top cut is right against the bottom of the rail. I centered my hole saw to high and cut into the rail. No big deal really, just took a lot longer. Killed one of my ten year Makita batteries too...
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1998 Grand Cherokee Limited; 5.2 L, 249

Help: Rear left lock doesn't lock using power locks, but will unlock. Any ideas?

-Born once, die twice. Born twice, die once.
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Unread 07-24-2013, 09:57 PM   #10
ZeeJay1997
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Quote:
Originally Posted by RoldGold View Post
Any chance you could take some measurements about where to drill the hole?
Here is how I fixed mine
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Unread 07-24-2013, 10:06 PM   #11
unabashedpraise
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I used at that link as well.

What's funny is for the next couple weeks after the repair I had mild anxiety every time I saw all the liquid pooling and dripping from under the jeep, worried it was oil or coolant. I wasn't used to seeing all that ac condensation!
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1998 Grand Cherokee Limited; 5.2 L, 249

Help: Rear left lock doesn't lock using power locks, but will unlock. Any ideas?

-Born once, die twice. Born twice, die once.
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Unread 07-25-2013, 01:06 AM   #12
ozzy_2_me
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I just fixed my issue with this last week. I ordered a new foam gasket from the dealership cost me 10 dollars. and then I torn the dash and everything complete out installed the new gasket and clamped a rubber hose that had a 90 degree angle on the end of the drain. shoved it back through the hole and put all back together and it only took me 3.5 hours to do. plus I found six screws in the dash that were just laying around in there and for some reason when putting it back together I still needed an extra two screws. it was a fun job though. I have been driving it around for the last week with the ac on high and cold as it goes and no water on my floor anymore. I like things to be done right and done right the first time.

I did mine this way so I don't weaken the structure of my jeep. plus your playing a guessing game try to figure out were the frame rails are. I don't guess and it probably would of taken me longer to do anyways.
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Unread 07-25-2013, 09:23 AM   #13
RoldGold
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Wait, so if you extend that pipe in ZeeJay's post, isn't the AC still draining through the frame rail? My goal is to avoid unnecessary rust inside the frame rail. I guess I could run a length of hose all the way down the frame rail, that way the water doesn't drain on the metal.
__________________
1996 Grand Cherokee Limited 4.0L
PSC Steering Gear; NP249 w/ new VC; Moog TRE's, Track Bar, Stabilizer bar bushings and endlinks, control arm bushings
Still no lift, and almost no paint on the hood
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Unread 07-25-2013, 03:45 PM   #14
unabashedpraise
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I saw a post about someone plugging the drain and putting their own in. They put a 90 elbow coming out of the passenger side of the drain, where most ppl drill to unblock a stopped up drain. He then attached a flexible tube, routed it to the floor, then drilled through the floor board and put the drain through.

Seems like a lot of work for something that may never be an issue. Also I think the drain is less likely to get plugged up as often while inside the frame rail.
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1998 Grand Cherokee Limited; 5.2 L, 249

Help: Rear left lock doesn't lock using power locks, but will unlock. Any ideas?

-Born once, die twice. Born twice, die once.
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Unread 07-25-2013, 05:11 PM   #15
ElCaminoManT
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i ran a piece of hose out into the fender well so the water wouldnt be draining thru the 'frame rail'. see my post here (pst #12) http://www.jeepforum.com/forum/f13/c.../#post15717915 there is no need to cut some big ol hole in the body, a 1/4" hole saw is more than enough. i will try to measure out where exactly to drill when i get home this evening.
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