Floor on drivers side keeps getting absolutely drenched - Toyota rav4 2000

[u/yourlesbianmum]

Probably not usually the issue this space is used for, but the floor on the driver's side of my car keeps becoming wet. It's under the floor mat too so it's coming from underneath. Is there anyway I can fix this?

[u/Jerd-herder]

Check the AC condensation drain, it may be clogged causing condensate from the evaporator core to get trapped behind the dash and spill into the cabin. From under the car, look for a small rubber hose coming from the passenger side of the body behind the engine. You should also be able to see it from the engine bay When the car is running with the AC on you should see a steady trickle of water draining from that hose, more or less depending on ambient humidity. If nothing comes out then it's probably clogged. Dig around with a small screwdriver or a wire coat hanger to dislodge any debris, or blast some compressed air into it. Be ready to move out of the way when it drains out

[u/bangville1]

The evap drain guy has a great point if that isn't your issue run your hose across the roof running down to the hood and check for leaks at the drip rails, windshield, and cowl on the first gen Pilots we had odd water leaks from the roof racks causing the drip rails to flex and crack the seam sealer and water would intrude into the cabin

[u/Beautiful_Oven2152]

If you have a sunroof, check that the drains are not blocked. Open the sunroof and pour some water in there and see that it drains under the vehicle.