Wet passenger floor board

the passenger side floor board stays wet all the time while i am driving, what is causing this?

Have you kept your eye on coolant level? A bad heater core is one suspect and you will also notice a loss of coolant. If you touched and smelled it is it water or something else?

had the radiator flushed, it’s doing good…the wetness is water, it has no odor.

If you’re running the A/C, the water could be caused from a plugged condensate drain tube. Have someone check and see if the drain tube is plugged.

Tester

Try removing the board and installing carpet.