[OmidHariri]

So this seems a little odd to me, but when my car gets wet *rain or a wash* my passenger side floor seems to flood. It already ruined the mat placed there but the floor itself is soaked and when i push down on it water comes out. So i have no idea where this is coming from and how this is happening. Also to make matters worse, it makes my car have a light mildew smell

Any one have any idea what could be the problem and how i can resolve this?

Sorry if i put this in the wrong section i wasn't sure exactly. This seemed the most proper.

[Amini77]

Check if the rubber sealing is still there..we'll compare our cars next time side by side see if everything is there.

[nkn6312]

my friend had a 2001ish pontiac grand prix, that did the exact same thing. If i remember correctly it was stemming from the seal around the windshield.

water would enter and run down the firewall and somehow end up flooding the passenger side foot well. everything on the car looked perfect too!

[PINeely]

There are several places that this could be coming from.
1) Windshield cowl seal
2) Blower motor seal (BM will likely need replacing soon anyway since it will have been getting wet during this)
3) Sunroof drain
4) Windshield (if it has been replaced)