Chrysler has a Technical Service
Bulletin for drain blockage.
See TSB: 24-06-96
Affected
Models:
1993 - 1996 (ZJ) Grand Cherokee / Grand Wagoneer
1993 -
1996 (ZG) Grand Cherokee (Outside U.S.)
Chrysler has a Technical Service Bulletin for
an updated cowl screen.
See TSB: 24-17-97
Affected Models:
1993 - 1996 (ZJ) Grand Cherokee / Grand Wagoneer
1993 - 1996 (ZG) Grand Cherokee (Outside U.S.)
Contact us for more 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.
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.
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).
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