Wet Floors 2017 Tacoma

Hi everyone. Having a big problem with my 2017 Tacoma and the floors being wet. I have noticed this for about 6 months now and have tried several things. Figured I would ask the internet before I tear apart the interior of my truck.

The entire floor is getting wet. I have weather tech floor mats and every time after a big rain (I live in Fl) the bottom of the mats are dripping and I have to take them out and crack the windows for a few days. I took it to the dealership and they told me it was the ac but i checked that before bringing it to them. I really don’t think they even looked at it at all. Not to mention it’s both sides.
I brought it to them because I heard water sloshing from side to side every time I would turn left or right.

This is what I have tried.
1. Pulled the plugs out from the bottom of the back of the cab and caulked the ever living crap out of the 3rd brake light and antenna.
I no longer hear the water sloshing when I turn.
2. Caulked around the seam of the plastic vents on the back wall behind the insulated panel.
3. Caulked around the wire harness on the firewall because I added some led lights.

Today I added a dash camera and in the process of running the wires I noticed the insulation carpet was very wet under the passage seat and damp on the passenger floor board. I didnt check the driver side but last week it was very wet so I’m sure it’s still wet.

I’m at my wits end with trying something and hope it dries up. Does anyone know what I can do?

 

Do you have a sunroof?

 

No Sun roof

 

Plenum drains lugged?

 

I just checked the plenum drains under the windshield wipers and there is nothing blocking or clogging them.