i just recently purchaced my first car a 88 camaro z28 and i have been doing some interior work and today when i went out to work on the car after a hard rain last night i removed my floormats (pass side )and then felt the carpet to be wet so i lifted it up and found there to be about 1/4 inch of water under the carpet so i dryed it out as well as i could but my brand new carpet is now soaked and i want to stop this do it dosent get ruined or worse rot my floorpans the drivers side was also wet but not nearly as bad as the pass side was anyone have any ideas where this water could be coming from? i really want to stop this soon before i get the car on the road at the moment i have a tarp under the hood and taped across the windsheild so hopefully no more will get in till i find the leak. any help will be appreciated

Does the car have t-tops? If not then check the door, window/roof, cowl and windshield weatherstripping. I'd also check your trunk too to make sure nothings coming in through the hatch.
Good luck
Alex

I'd get in the car shut the door and have a buddy run a hose all over ther area to see if you can tell where it's coming in from.Might be a quick easy way to figure it out.

check to see if your heater core is leaking.... your heater core is right above your passenger side floor pan.

i think i found the source guys i dont have a hose cause i live in an apt but i took a coffie can filled with water (carpets and insulation removed/pulled back) and i poured it on the windsheild and watched it come in from two rust holes in the fire wall one is about 1.5 tall by 3.5 long and the other one is about .5 by 1 so now i gotta try to seal the holes up any ideas? i dont have access to a welder

Dont' skimp on repairing rust holes, they'll come back to bite you (or the next owner) later on. get a repair shop to cut rust out and weld it up if you can.

i would do that but the car isnt registered yet and wouldent that cost alot to have done? i dont have much money the car already needs rear tires rear axle bearings/seals diff cover parking brake cable airfilter plugs and wires a catalatic converter (its missing and theres nothing in its place and illegal without one here) and theres other things i cant think of at the moment

You could sand off the rust on both sides and fill it with metal 2 metal its a filler but has metal in it.The best way is to weld the holes shut then normal body work.

there are a couple of other options for a temp fix, in all cases you should first clean and sand off rust

1. use bondo with body repair screen

2. use epoxy with body repair screen - if you want to avoid a drippy mess of epoxy use the stuff that is a two part either strips or roll that is kind of the consistency of stiff play dough

3. use strip caulk (commonly called dum-dum) made by 3M and Norton, sold at auto paint supply stores and NAPA - this is the stuff the fatory used to plug up holes in the firewall etc, it does not set up hard but stays pliable

these are temporary but you should be able to stop your leaks - in all cases make sure you paint any sanded/bare metal with some kind of rust preventer paint like RustOleum, not perfect but does slow rust