The heater is leaking coolant.
this could be from the heater core. When the heater core goes out it leaks....right into the passenger side floor board If it is water, not coolant, the problem could be a plugged air conditioner drain. Easily accesible from under the hood.
Roll up the windows!
Crack in the heater core
On the passenger side floor board under your carpeting and a metal plate where you rest your feet On the passenger side floor board under your carpeting and a metal plate where you rest your feet
Heater core leaking?
It's a Dodge thats why.
Heater. Core
The Battery is located in the Floor board between the driver and passenger seats, you will have to remove the rubber floor to access it. Special tools you may need are on the passenger side in the floor, where the jack is.
Under the passenger floor board, under the peice of ply wood
Heater core failure.
Must be a punctured hose. Take it to a shop for a diagnostic.
passenger side floor board