Sounds like you may have to replace your heater core, they are located under the dash. If yours has a small leak (starting to go bad) you will have to replace it or you will end up with a major leak and no ac/heat and will fry your engine. Check with your mechanic on this one. Maybe.... but if it is just condensation you can locate the drain tube on ther passenger side firewall and stick a piece of wire up it until the water runs out. Most of the time dust and leaves will block the drain and cause the water to leak out onto the floor.
heater core may be leaking or hole in floor
Under the back left passenger seat rear. We have a one out of our 2000 Cherokee if you need one call for a price 973-277-2132.
The ad drain tube is on the lower portion of the firewall, passenger side.
It is under the front of the passenger side cylinder head.
Passenger side floor board, where the passenger's feet would be just to the right, behind a cover.
designed for 5 but in the rear compartment you could probably sit and extra 4
It is under the front of the passenger side cylinder head.
On the right hand (passenger) side of the engine compartment towards the rear on the firewall.
on my 2000 grand Cherokee Laredo is under the passenger head light is hard to get to is a Little black box w. 2 screws on it hope the helps..
The heat shields on the Cherokee models are needed. The floor pans in the Cherokee models are thin and are penetrated by heat very easily. If you have driven one much, you will notice that the drivers and passengers front floor pans get quite warm from the engine heat. This is true with the muffler also. If it is not shielded the floor will get really hot and penetrate into the cab.
I6 in the distributor V8 under the front of the passenger side cylinder head.
most likely cause is your heater core leaking