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Old 10-26-2005, 05:25 AM   #59
CKTA
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Status: Offline
Join Date: Aug 2001
Member ID: 66
Location: New Jersey
Age: 33
Posts: 50,881
Re: Rain leaking into cab
OK guys.....by dumb luck I found out i have a leak too. On the drivers side tho. Checked the pass. side and it's fine. Here in Jersey we have gotten HUGE ammounts of rain and flooding in the last month. I origanlly thought my wet carpet was from boggin' through 2' of water, but after leaving towels on the floor I noticed they were still getting wet after yesterdays rain.

I really looked into this last night and have come up w/ a few things.....

1. Putting silicone on the cowl screws will do NOTHING. Those screws go into the cowl area which is a huge open area.

2. "Eric G" siliconed area makes sense and I looked into that, but mine appeared in very good shape.

So what i did was pull the truck back out side and let the hose run for a while as i was inside. Took a while, but I finially saw a small amount of water starting to run OUT of the seam sealer where the floor, firewall and kickpanel sheetmetal meet. I can only assume from this that it's leaking from the cowl area being I CAN NOT see water running into the cab only out of the seam sealer. Back to the cowl area I went. I cleaned the area (not that dirty) and found something that could be the problem....

When the cowl area fills w/ water it drains out of a "tube" on the drivers side. (pop the hood and look for a black plastic housing under and to the right of the cruise box and under the washer tube.) I took that off (the bottom screw is a PITA) hoping that was clogged. No dice, nice and clean. I cleaned out the cowl area going into that plastic peice and noticed that there was what looked to be a void in the seam sealer there. I cleaned that out siliconed it up and reinstalled everything.

As I made my way back into the cab to silicone up the area where the water was leaking out from I also noticed that there was a void in the seam sealer where the firewall, inner floor and outter floor come together.

Only time will tell, it's still raining and the silicone was still wet so i left the truck in the garage last night. I have the carpet spaced up so it will dry and so i can keep an eye on this. I'll keep you guys updated.
Carlisle All Truck national info....

http://www.fullsizechevy.com/forums/...ls-2008-a.html

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