When the xj is sitting in my driveway during a rainstorm, water accumulates over night and puddles into the passenger floor.

Has anybody else had this problem?

 

Do a search, alot of prople have had this problem, no easy fix.

 

My fix was using polyurethane caulk on the hole in the firewall under the window washer fluid reservoir. Pull the reservoir aside and spray this area where the blower motor sticks through the firewall with hose. If it leaks caulk it.

I also pulled the plug where the antenna enters under the dash and caulked it. You have to remove the plastic guard under the wheel well on the passenger side to get at the plug.

My leaks are gone!!! on to the next problem.