If the drain is plugged the drivers side will get wet from the water backing up in the heater case.
Water on driver side floor after rain.
You need to remove the pillar trim and the left kick panel to get at it.
I had to clean these holes out on both the passenger side and the driver side just prior to this big rainstorm we have had in calif in fact b c water was getting in and accumulating on my poor truck s floor pan.
This has happened three times.
I bought this car used and have only had it about thre months.
I have seen several cars that customers said they only get wet when it rains turn out to be plugged a c drains.
If it is indeed a leak during rain you can test it with a garden hose.
If you can ask someone to pour water on the cowl where the fresh air enters then look underneath the dash or where you suspect under the driver side.
The floorboard on my driver side is always flooded after a good rain.
2006 chevrolet hhr after every good rain my carpet is flooded and standing in water drivers side only.
Check the drain port of the a c too.
If you are removing the tube you need to tie a long string to the upper end in the a pillar and then pull it down into the kick panel area of the car.
One person told us to check door drain holes and i did check two 2 longish slots not holes along the bottom edge of the door.
Wet carpet on driver s side rear floor when it rains.
2004 ford mustang the driver s side rear floor is absolutely soaked after a heavy rain.
We do not feel any water around the roof liner or other carpeting just the well where a rear passenger riding on the driver s side would put their feet.
Interior water leak onto drivers side floor board on 2011 gmc sierra slt 4x4.