Water On Floor Of Car Back Seat

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.

Water on floor of car back seat.

Check to see whether the liquid collecting in the car is antifreeze or water don t taste it. Your first order of business is to get as much water out of your car as possible as quickly as you can. I stripped the interior out and found a pool of water under the rear bench on the right hand side unsurprisingly and the seat foam was pretty wet too. This car was getting wet on the right hand rear seat behind the driver.

Water will always flow towards the back seat because it sits lower than any other part of the car. We first noticed the problem when a friend sat in the back and got a wet bum. The heater core is like a little radiator which water passes through under the dashboard to heat the cabin. Re seal the barrier and the problem goes away.

Another good indication is if the liquid is only collecting on the passenger side where most heater cores are located. Rain water goes down inside the door at the bottom of the glass and that vapor barrier directs the water flow to a drain at the bottom front of the door. The glue sealant that holds that barrier to the door frame can go bad when that happens the water goes inside the car rather than down the drain. Water on floor passenger side diagnose and fix water on floor passenger side.