My driver side floorboard is leaking something. I am not sure what this could be. There is a huge stain that looks like a burn almost, and around the hole is a brown stain that keeps getting bigger. I lift up my floor mat and it is soaked. Could this be my air conditioner leaking or could it be something more serious?
Brake fluid ?
Its likely to be either your air conditioning condensate in which case there is a little drain that it clogged. This should be a simple matter for any shop.
Or it may be your heater core. Check your coolant level before driving again just in case. Cross your fingers that the heater core isn’t the answer as this is normally not a simple matter. (They usually require a lot of labor to replace).