I live NJ and had the same problem 2 weeks ago with all the rain. So with Fred(Noreaster) and Wilma(hurricane) heading this way, I better check into it. I took the hose to it and then went inside and noticed water dripping from the HVAC unit right onto the right side floor board. I also noticed that if I park up hill it was way worse. I figured my cowl drain was clogged so I took the cowl off. Not a big deal, just pop the wiper arms off, 7 phillips head screws and a weatherstrip. Well, I find a big cowl drain right in the middle and sprayed some water in there and it did not seem clogged. So with the right side letting in the water, I started to inspect. I took off the fresh air intake. I look down inside there and there is a pool of water on top of the HVAC assembly. I took a closer look at the fresh air intake and one of the screw's threads were stripped out and the intake was loose. The intake does have a gasket so I put a bigger self-tapping screw in and made it real tight. I put it back together and took the hose to it. No more water dripping from the HVAC assembly but I did find a small leak from up inside the dash, running down the firewall and onto the right floorboard. I ran out of daylight so I pulled the carpet back and pulled the drain plug out. I parked it down hill and we will see how much water I get over the next two days. I did not even address the back area yet. The front has me a little worried because I can't see where the water is coming in from behind the dash. All I see is a drip rolling down the firewall and onto the floorboard.
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