help me find the leak

I have a 96 reg cab Tacoma and when it rains my passenger floorboard gets wet so I pulled the carpet back and it looks like it's comeing down in the corner like we're the finder meets the fire wall but I still can find the leak has anyone else had this prob help me out

 

Dry the windshield and tape the windshield and moulding with painters tape. Run it for a while and if it don't leak you may need the windshield resealed or worse, the frame is rusted through.
Tape can be your friend finding leaks.

 

It mite could be the windshield for sure it and rust this truck hasn't got any rust but thank u to I'm going to try the windshield thing

 

Check the firewall grommet. On my old 4runner i ran amp wire through it and it wasnt tight enough so flooded the floor. If so just put some silicon around the hole and done.

 

Sounds good I'll check that out to thank u

 

Ok y'all it an rained and I checked my floor board and the bottom of the floor mat is damp so what could that be making it do that is it cause the cat is rite under it and getting hot and sweating or what I have no muffler just cat and stock pipe if that helps

 

OP, you ever get this figured out? I have similar problem......

 

Where are you finding the dampness?

 

There's another thread on here that addresses this problem.

I'm only a novice when it comes to things mechanical but IIRC the problem had to do with the A/C and condensation pipe ... busted/cracked/not working right.

 

Mine is a small stream of water that runs down the seam where the firewall and side of cab meet, behind the ecu. I found it after a hard nights rain and the carpet on passenger side was wet........

 

I'd look at the condition of the grommets in the firewall for different things that go through on that side like the low pressure AC line and the heater core lines. It could also be the stripping around your windshield isn't doing it's job anymore allowing water to seep in on that corner.

 

Ok, I’ll check that.....as soon as I can figure out the cowl pushpins to remove. Thanks for the info.