Check those under hood drain holes. They can cause a mess




Basically when washing the car or when it rains, the water cant drain properly, instead it leaks into the cabin through the ac fan.
Replaced everything down there including the passanger carpet.
Got a used fan in great shape. Blows like a beast. Also replaced the metal plate where the feet go together with the modules that bolt to the back of it. Most of this I did when I got the car but the fan I did today.




BTW good job doing all the cleaning/replacements




Rust on floor comes from clogged water drains and the filled with crap compartment on passengers side firewall.



