If the water on the floor is green and oily feeling it could be due to a leaking heater core and you will be low on antifreeze inside the radiator but i bet you have a restriction in the a c drain which can be easily cleaned with a shot of compressed air.
Water on floor of car passenger side.
Normally any water that gets into the door will drain out onto the road but the door s drain holes can become clogged too.
By design water can get into the inside of your car s doors either from rain or from splashing by passing cars on wet roads.
In this case.
Faulty seals if plastic or rubber seals in your a c system fail water can seep out of the system and into your vehicle cabin.
The upper portion of the carpet.
If your car has a sunroof check its drainage system for these oddities.
It happens every time it rains and my floor inside my car gets soaking wet.
I found a puddle of water on the floor and my car is soaked.
This will cause cold clear a c water to drain inside the vehicle on the passenger side.
A damp carpet or water on floor passenger side situation can be caused by a plugged ac condensate drain line a leaking heater core leaking windshield seal a problem with sunroof drains or water ingestion from the fresh air intake on your car s hvac system.
Its not a plugged a c drain this only occurs when there is a heavy rain.
Check it if the dripping liquid smells like coolant.
My car is leaking water into the passenger side floor when it rains clogged sunroof drains or loose drain hose.
If this is the case you ll probably notice the water pooling up under the passenger side floor mats.
If you are experiencing water on the passenger side floor of your car or truck and if it s not antifreeze 99 of the time it is a simple fix.
The heater core could be the culprit too.
Causes of a wet passenger side floor mat 3.