Run the hose over the car and observe the results.
Floor of car is soaked.
Another possible cause of wet carpet especially in the front of the car when it hasn t been raining is a leak from the heater core.
Wind the windows up an close the doors.
The floor of my car is completely soaked with water.
The most likely cause is leaky window seals or leaky door seals.
Car is not overheating and it seems like it s just water not antifreeze.
The rubber evap drain on the engine side of the firewall blocks up with debris and causes the evap moisture to build up and overflow inside the car.
What can i check.
Car heaters circulate coolant through the dashboard area to heat the car and if the heater core springs a leak coolant can drip onto the floor.
Hot coolant flows from the engine where heat is absorbed and taken to the car s heater core when you turn on the heater.
Causes of a wet passenger side floor mat 1.
You will notice the wet areas when you.
The heater core is like a small radiator.
How to find water leaks in a car.
The sides are dry seats are dry just the floors are wet and it s on both sides of the car front and back.
It s always better to use cloth rather than paper towels for this step because cloth towels are much more absorbent.
Bad heater core a similar problem could occur with the car s heater system.
You should also check to see if your vehicle has drain plugs in the floor that you can open up to release any trapped water.