Sounds like heater core is leaking
Not sure but it could be that the car's heater unit water has air in it. If so I believe this can be caused by exhaust gases coming from a leaking cylinder head gasket.
If your talking about coolant leaking on the passenger floor then it means your heater core is leaking and needs to be replaced.
Your heater core is leaking. This is the part of your car that creates heat for the passenger compartment of your car. There is no fix for a leaking heater core except to replace it.
Water on the floor that is not coming from the heater core is coming either from rain water leaking around a windshield seal or one of the firewall seals where hoses, wires or other components enter from the engine compartment.
If it tastes and smells sweet, you have a leaking heater core. If it is just water, you have a leak at the windshield or the A/C condenser drain line is clogged.
my 1995 Trooper had same problem it was the crankshaft position sensor located on the middle passenger side of the motor. I will remove the passenger side front tire and it is behind the shock, tight fit but can be done.
If it is leaking on the passenger side, out side of the vehicle, then this is normal. It is condensation coming from the evaporator core. If it is leaking INSIDE the vehicle, then you have a clogged evaporator core vent drain. Clearing the drain should clear the problem.
Heater core / hose leaking.
camshaft position sensor gasket or head gasket both likely
If you smell antifreeze in the passenger compartment of your car your heater core is probably leaking. It's under the dash somewhere ( depends on the make and model ). Another symptom of a leaking heater core is moisture build up on the inside of the windshield when you run your defroster.
Coolant leaking from the pump shaft.Engine overheating.Noise coming from pump.Coolant leaking from the pump shaft.Engine overheating.Noise coming from pump.
Bing will be coming with the new 2011 dashboard, which will be launched on the 25th of November.