You preliminary diagnostic about leak is hafl correct, but this is of a clogged A/C drain hose. It's a very common thing to happen. Here some details: If your vehicle
has an A/C drain hose, it will be located on the engine side of the
firewall, below where the two A/C lines go through the firewall. Somewhere just below
the Suction and Liquid Lines you will see a small black hose coming
through the firewall and pointing down. This is the A/C drain hose. Take
a piece of wire and snake out the hose. This will clear the blockage
and allow the water to drain out. You may have to remove the drain hose completely. If so, it just pulls right out and you can slip it back on easily enough. Also, in this link could find other details with images: Condensate Drain on Jeep Grand Cherokee Hope this helps to solve it (remember to rate and comment this free answer).
NO: 24-18-94
GROUP: Heating & A/C
DATE: Nov. 18, 1994
SUBJECT: Condensate Drain Tube Eliminated
MODELS:
1994-1995 (AN) Dakota
1993-1995 (XJ) Cherokee
DISCUSSION:
The above vehicles no longer use an air conditioner condensate drain
tube. Cherokee's built after September 3, 1993 (MDH 09-03-xx) and
Dakota's built after June 1, 1994 (MDH 06-01-xx) no longer need the
condensate drain tube. Do not install in the field or submit a shortage
and error request.
If by leaking, you mean there is a puddle of water under the passenger side, (under the engine when parked) then that is normal. Nothing needs to be fixed. If you mean some other kind of leaking please repost and explain more about where and what is leaking.
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