I have a 97 rl. Recently I have noticed that when it rains or I wash my car the passenger floorboard is soaking wet. I first thought that the heater core was leaking, but discovered that it only happened when it rained and never smelled like coolant. I then tested the sunroof drains to make sure that they were not plugged. They were not. I then took a hose and ran it only on the windshield on the passenger side. It took about 20 seconds and then there was water running under the glovebox like crazy. I cannot figure out how it is getting in there. Any ideas? Thanks,

 

the last owner of my car said it had that problem. he said it ended up being because of the a\c and some filter was clogged so it back up into the cabin. not sure where this filter is at, but hope it helps you somehow

 

Acura Service Bulletin B98-028 (Dated 01OCT2001) may answer your question. It dealt with problems associated with water leaking into the car from the front pillars. It applied to all 1996-2001 3.5RL's and a few VIN's from the 2002 model year.

 

on my 96 rl i had that same problem n all it was i had 2 do remove the wipers 2 remove a plastic cover. that covers the drainage next 2 the fender once u remove the cover you will c a black sponge lining that has gone bad n all i did was reinforce it with gray tape or cover it to form more of a wall. n it work i was told this by a window replacement house. hope i xplain it write. i did this year ago