I recently replaced the rear hatch gasket due to the original one being all torn up. It has rained several times since then with no leaking.

After the last rain I found a small wet area about as big as my hand just forward of the rear tie down hook on the passenger side in the cargo area. I don't know where the water came from. It seems to be too far forward to have been a hatch gasket problem, and the headliner fabric and board are dry.

The only thing I have messed with since the last rain was I replaced a bulb in the rear passenger brake light/turn signal housing. Is it possible for water to leak in around the rear brake light/turn signal housing?

 

Did you make sure that the loom for the hatch wiring is sealing? Water could be tracking down through this if it isn't.

 

make sure your floor isn't rotted out

 

Got kids? Maybe they spilled sumpthin' back there.

 

That's what I was wondering. I'm sure the seal got compromised. Does this happen much?

 

When you pulled the light off did you happen to look down into the fender? When I pulled my driver's rear taillight to either replace a bulb or mount the CB antenna mount I noticed there was water. Pull the passenger side and there was water there too. I have had other people check and theirs were full of water also. I need to replace my hatch gasket but perhaps the side window gaskets could be leaking as well.

Turn a corner with water in your fender and it could slosh up and wet the carpet.

I ended up drilling a couple holes in the bottom of the fender (between tire and rear bumper) to let the water drain.