The back passenger side floor is soaking wet. I have vacuumed in out twice and it is wet again. The sides of the carpet are not wet, just the floor. I have rear A/C vents; could they be leaking somehow??

my mom had a 1977 camaro that had the same problem, there was no fix for it that we could find but we did find out the cause.somehow if it rained a certain way the water leaked in between some joint in the car and would wind up in the back seat floorboards.the whole life of the car it did this, and was no fixable by chevy, or a number of places we took it. we even had a friend use a presure washer and try duplicating it and he couldnt.

anyway this could be the problem, as it sounds like the same sorta issue. but if it happens when it doesnt rain then im stumped.

hoped this was at leasts somewhat helpfull to you. gl on the problem.