After a very hard rain I found a pool of water on the driver side that filled the rubber area of the carpet. Pulling the passenger side carpet...it was soaked. It looked like water was coming in the blower area so I "sealed" it with silicone. I put a small fan under the carpet after I pulled the seat. Checked and after 3 days with the fan running it was dry. I did nothing to the driver side. I took a hose, turned the water on full force and ran the water on the seal around the sunroof and driver side door (all the way around the door). I then ran the water around the windshield an dumped water in the air intake grill. Noticed water ran out of the area under the Jeep where you expect when water comes into the fresh area intake. No leaks where observed after this "test." Question is where could the water come in to the driver side?

 

maybee through the door. sometimes the small holes in the bottom of the door gets stopped. then when lots of water is applyed to the door, it fills up, and then overflows into the inside of the car.

good luck

 

I checked and that looks OK.