Water on the passenger side floor would be a plugged up AC drain. The drain is located under the hood, at the lowest point on the HVAC box on the firewall. However if the floor is wet with engine coolant, the heater core is leaking.
Heater. Core
Heat causes the ice to melt into water and the water evaporates into vapor.
my mom
Condensation
When water vapor is cooled it turns into liquid.
DUST!!!!!
Heat
heat will change it
Water vapor is the main source of global warming. This then causes ozone depletion.
Are you running the air conditioner? If the drain line is plugged, it will leak water (condensation) onto the passenger side floor.
Condensation causes water vapor to become liquid water.
Water vapor is the man cause of global warming. It then causes ozone depletion.