Why would the ac leak out on the floorboard on a 1998 Jeep Grand Cherokee?

Answer 1

The A/C Evaporator in your Jeep is leaking into the vehicle because the condensate drain is plugged and if it can't drain out easily it must go somewhere so in it goes following the path of least resistance , This usually means a wet carpet on the passenger side , This drain is not visible from the outside and jeep has serviced this problem by drilling a small hole from the inside through the black plastic drain fitting located behind the rug and just above the passengers left foot on the firewall. If this has been serviced it will have the hole drilled and a small rubber plug sealing the hole , pull the plug out and probe forward to try to clear any obstruction.