Water on the drivers floor.

If wet with no rain could be heater hose/core or A/C. Wet after rain a few links below.
https://www.youtube.com/watch?v=O6RaFLNrEDk
https://www.youtube.com/watch?v=IYivahDhgsQ
https://www.youtube.com/watch?v=Bw-PTAJtNvQ
https://www.youtube.com/watch?v=BctXRfLfeog

Get your heater core checked. May be leaking.

Have you checked the rubber door seals for ingress?

Do you have a sunroof?you might need to clean drain tubes.have you had a windshield replaced?or it could be a body seem.you will need to remove panels and lift up corner of the carpet and run the garden hose over the area and check for water in vehicle.

Could be condensation from the air conditioner. This normally drains out a tube near the glove box, onto the ground. If this drain tube comes off or is clogged, the water will drain into the interior of the car instead.
Could also be a leak around the windshield, door, or sunroof.
When do you notice it most? Warm humid days, or after a rain or car wash?

its caused by your aircon the hose may leaking under your dash board

take a star screw driver and punch a pair of holes in your floor on drivers side make sure once you go through push the screw driver towards the front of the car and creat angled pockets
these will be your new drains being so small they will bnot tako on water or they will take on a min of water and they will drain the floors


it''s the easiest way to fix the problem go right through the carpet it's just thet easy use a good pointy screw driver or a center punch but dont make the hole larger then 1/4 inch
a mechanic will carge you 250 to fix original drains and will likely do the same as i said a couple of wacks near the lower center on the floor boards
so get in place feet on floor slide them back against the seat with it all the way back now place pointy object between feet and wach it with a hammer
once through push pointy objest forward to create new drain

This happened to me. Problem is that the wiring and transercase ECM under the floor mats are not weather sealed. To fix the 4X4 ECM youll need to take up all the flooring and sound proffing. They hold a lot of water and never real dry out. Next to replace the ECM its easyest to take out the drivers seat. Four blots hold it to the floor. The black box under the seat (under the floor mates) is the ECM for the transfer case. Replace that and get the conections in the wireing dry and you should be good.

Check your outer door window seals. If they are worn water will leak through the door to the floor.

I believe the problem is a leak in your heater core. The water would run down the inside of the firewall or near it thus running under the mat.