THere seems to be a leak in my trunk. Its always wet and after lifting up the floor panel, theres always a small puddle forming where the spare tire is. How do i fix this problem? Is it expensive to fix?

 

search search search.
there's been a ton of threads covering this issue.

 

Pull the brake lights, replace the gaskets.

 

every prelude i looked at has had this, mine included. as the guy above said, it seems to come from the light array gaskets, i've replaced mine but it still gets wet now and again, try looking at your weather strip under the trunk lid, mine is ripped so thats the next thing i'm replacing but they cost alot from honda so i haven't bothered replacing it just yet

 

Another possibility, and it's because this is what's wrong with my trunk, is that there is a leak in the air vent on the right side of the trunk. Behind the trunk liner there's a rectangular vent with flaps that allows the trunk to vent out and prevents water from getting in (really simple design). Since there's a cutout in the body of the car for it to fit, and it's directly above the wheel well, it has to be sealed around the edges to prevent leakage. The seal on mine has leaks in it and needs to be redone...just haven't gotten around to it.