Air conditioning leaking inside car

[NYPSMC1]

Team. have a 95 Grand Cherokee limited..air conditioning flooding passenger compartment and rugs in front and back are soaked. Not sure where under the dash to look...water is running down along the passenger side of the hump. Looked for a chiltons book in the typical super book stores tonight but none there. Any ideas? Thanks

Bill

[jWiles]

Is it coolant? Sounds like maybe your heater core went out. Not a fun thing to replace. Good luck.

[tdenkler]

exact same prob with my 93. thought heater core too but wasn't. Dealer found condesation drain clogged. It originates below cowl inside engine compartment and drains under carpet pass side to outside. use compressed air blow out all debris in and below cowl. should clear

[NYPSMC1]

Great responses....drilled a hole in the bottom of the vent inside the car (under the dash) reamed out with wire...then blew it out....problem solved. BTW...I found out...that is the dealer fix too. Thanks Bill

[PNeyland]

I am looking at a 94 Grand Cherokee for my Daughter and brought it home to have checked out and found the floor wet under the pasenger seat. Is the fix inexpensive enough to follow through with the purchase. My wife spoke to someone that had to replace the air conditioner in theirs to fix and the cost was 3,000. Just would like to be sure. Thanks for any information.
Paul

[NYPSMC1]

Baloney on the airconditioner replacement. turns out there is a plastic piece of the duct under the dash behind the glove box. You need to drill a hole (I used 1/4") and blow air in there. (I used a tire inflator) You should see water start draining through the frame of the car. As I remember the system is supposed to drain through the frame. And dirt collects in this runway. I did that...and plugged wth the stuff you seal outside faucets with...and voila...fixed. Also...I have since traded the Jeep in....was great for the 140,000 miles. thanks Bill

[Caribbean ZJ]

93 JGC same problem. Could Someone please provide pic of where to drill & blow air. Wouldn't want to start drilling all over the place

[Dsilver]

Your definitely right on that one Caribbean ZJ

[gr8print]

Same prob with my 98 JGC - since no one else posted a pic - I guess that the round hub was behind the drain port forward.

I drilled the hole (look out for a lot of water), reamed it out with a wire (no air avail) and filled the hole with a sheet metal screw (easier next time)

Originally Posted by Caribbean ZJ

93 JGC same problem. Could Someone please provide pic of where to drill & blow air. Wouldn't want to start drilling all over the place

[Caribbean ZJ]

thanks. did alot of gum come out with the wire,how long did u poke around there for, water gushed out? i thought that was the spot. do u think silicone will seal this watertight?

[YtseJam454]

1. Pull the carpet down in the passengers foot well and locate the evaporator drain in the housing (See Illustration).

2. Drill a 1/4 inch hole in the center of the drain tube housing as shown. Clear the drain tube with a wire or suitable tool by inserting it through the hole and into the drain tube.

3. Insert plug, P/N 5255217 into the 1/4 inch hole drilled previously.

4. Verify that the drain is clear by operating the system in the A/C mode and observing that water is draining.

[gr8print]

I wish I had seen that drawing!

A small poke with a thin wire was all it took to free up whast gunk was in the hole - water started gusing out the bottom of the car immediately. Unfortuanately, about 2 quarts of condensate had already filled the passenger side the previous day.

[gr8print]

.... and I don't usually spell that badly.

and I think my self tapping screw is a better idea than a rubber plug or silicone sealant - I'm sure it will happen again some time.

[BajaJason]

Ive got a question. just bought one with the same problem. when you drill the hole, does water come into the compartment there? and how do you get to the hose to put the wire through it?

[legartner]

Originally Posted by YtseJam454

1. Pull the carpet down in the passengers foot well and locate the evaporator drain in the housing (See Illustration).

2. Drill a 1/4 inch hole in the center of the drain tube housing as shown. Clear the drain tube with a wire or suitable tool by inserting it through the hole and into the drain tube.

3. Insert plug, P/N 5255217 into the 1/4 inch hole drilled previously.

4. Verify that the drain is clear by operating the system in the A/C mode and observing that water is draining.

Is the drain tube easily identifiable when you pull back the carpet?? I too have this problem on a 95 JGC. Thanks for your reply.