If this is the case you ll probably notice the water pooling up under the passenger side floor mats.
Water on floor of car passenger side.
My car is leaking water into the passenger side floor when it rains clogged sunroof drains or loose drain hose.
In this case.
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.
Check it if the dripping liquid smells like coolant.
The heater core could be the culprit too.
The front passenger side floor becomes thoroughly soaked when it rains.
Causes of a wet passenger side floor mat 3.
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.
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.
Normally any water that gets into the door will drain out onto the road but the door s drain holes can become clogged too.
Water on floor passenger side from clogged ac condensate drain.
Its not a plugged a c drain this only occurs when there is a heavy rain.
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.
This can force water into the cabin.
The upper portion of the carpet.
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.
This will cause cold clear a c water to drain inside the vehicle on the passenger side.