There is a drain on the outside firewall that is clogged.
Ac drain hole is plugged, go under neath by oil filter and unclog small rubber opening! This should fix it..
The ac drain is plugged. The drain hose is on the firewall on the lower passenger side. ...that, or your heater core is leaking.
If you have a plugged AC condensation drain, clear water will back up and end up on the passenger floor. If the heater core is leaking engine coolant you will have engine coolant end up on the passenger floor.
AC condensation drain.
Water pan is not something that I am familiar with, but if you are getting water on the floor on the passenger side then your heater core may be leaking, the drain tube for the ac is blocked ( it sticks out through the firewall on the passenger side and can be cleaned out with a coat hanger or compressed air).
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.
the heater core is leaking or ac drain is stopped up
i dont know for sure but look for it just under the ac lines that go thru the fire wall in the engine compartment
If it's not related to outside weather, then check the drain for your AC condenser.
its water make sure the drain hole for the AC is not cloged
Stopped up condenser drain line, unless this water is coolant. In that case it is a leaking heater core. Coolant tastes and smells sweet. Crawl under the car and look for a drain line on the passenger side, near the firewall. Clean this out with a blunt pencil.
look on the carpet on passanger side if its damp your ac drain is very likely plug you have got to put on hist to unplug it from under neath