Yeah i noticed my brakes went to the floor also, i just rode them for about 2 miles and they started to get their feel back. I was lucky because the weather wasn't bad (it was last summer) so i left the windows down and eventually the soggyness dissappeared, but the damp swamp water smell was always present afterwards, but it mostly went away. I pulled my carpet up and there was actually quite a bit of dirt underneath which i believe caused quite a bit of smell, not to mention the sound deadening material (attached to the bottom of the carpet) that soaked up the dirt and stink water and preserved the smell. All i can recommend is pulling up the carpet and vacuuming under as well. My sound deading material was stained so i removed it. Good luck!
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'84 Mustang 5.0 LX
My car