The AC evaporator drain commonly clogs and causes water to leak onto the passenger side floor. A sloshing noise may also be heard from the water inside the heater housing. Decaying organic debris in the housing may cause an odor. A service bulletin (TSB 24-06-96) was released; it describes how to clean the drain tube without removing the heater AC housing.Google+
Car Problem Reports
Jeep Grand Cherokee Water Leak and Sloshing Due to Clogged Evaporator Drain
Jeep Grand Cherokee Problem
Average Mileage: 145,277 mi (23,300 mi - 241,307 mi)
Visitor, 1993 Jeep Grand Cherokee, 75,000 mi
my air cond, leaks in pastenger floor, how do I fix this
Visitor, 1995 Jeep Grand Cherokee, 153,000 mi
Water leaking on to passenger floor. Particularly noticeable during a hard rain
Visitor, 1993 Jeep Grand Cherokee, 23,300 mi
Water sloshing on passenger side. Some leaking of water on floor also.
Visitor, 2000 Jeep Grand Cherokee, 130,000 mi
Water everywhere on passenger side floor board
Visitor, 1995 Jeep Grand Cherokee, 160,000 mi
Sound of sloshing and leaking from evaporator tube. As a result the carpet area on passenger side is soaked.
Visitor, 2000 Jeep Grand Cherokee
my passenger floor stays wet- was not sure what the problem was
Visitor, 1994 Jeep Grand Cherokee, 149,000 mi
wet floor board on passanger side, not when it rains, the next day. will check evaporator seal
Visitor, 1999 Jeep Grand Cherokee, 230,000 mi
water in on passenger side floor board from plugged evaporator drain
Visitor, 1996 Jeep Grand Cherokee, 125,000 mi
same wet floor
Wet carpet on passenger side. Carpet was peeled away to reveal trouble spot, debris was removed and has been several times every 20k miles or so.