The floor on the front passenger side is staying soaking wet with water the water is not dripping down on floor

Hi Linda , you mite have a windshield leak ! You could possibly look under the dash an see if there is a water stain coming down the metal body inside ! If it were the passenger side I'd say you had a heater core leak .You don't have any unusual odors do you ? Like anti freeze ? Or does the windshield fog up when on defroster ?

have you had the AC on by any chance ,if not then check the drain holes either side at the bottom of nwhere the wiper motor is as their are drain holes either side of the bulkhead or firewall in american ,to drain the floor just drill a 5/16th hole in the lowest point of the floor when the car sits in the kerb this will allow the water to escape i,old adage of mine if it can in then let it out

Ac condensation could be building up and dripping in cab.If so under car on passenger side were floor board meets firewall should be a small hose or maybe even just a hole where water to drip. First i use like a coat hanger to clean out.

sounds like you have a bad heater core

could be your heater core check your coolant levels.... or you can have some holes in your floors

If you've been using your air conditioner during this time, and it hasn't rained at all, then the small drain at the bottom of the a/c evaporator core may be plugged. When you use the a/c to cool the car the evaporator coil [located next to the heater core in the ductwork under the dash] is very cold and moisture from the hot humid air condenses on it as a result. This condensation dribbles down the core and accumulates in the plastic housing under it where it should then drain out a small hole and drip onto the ground. If the small drain gets plugged, which happens quite often, then the water fills up the housing until it overflows and then runs out and soaks the carpet on the front passenger side. The drain is located on the engine side of the firewall, passenger side, down low where the firewall begins to curve under. Usually a puff of air will clear the clog and the drain will work fine again. If the carpet is really wet it would be a good idea to remove it and get everything dry again as it tends to get pretty smelly if left wet. One last note: usually a leaky a/c unit will only make the passenger side carpet wet unless it's been leaking for a long time while a leaky windshield seal can make both sides wet depending on where it is leaking. Good luck, hope this helps you out!

is it only when the ac is on? there is a pan under the ac unit that has a hole in it to allow the condensation to empty. if that hole gets plugged it could cause the condensation to build up and back into the inside of that car. i unplugged mine and floor stayed dry

Clean out the drain tube .

sounds like the air conditioning drain for condensation is plugged

Have you by any chance jacked up the passenger side, or got vehicle on a hoist to make sure there isn't any plugs on the underside that may have fell out? They could be round or oval metal or rubber plugs, probably in that area.