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Old 03-08-2011, 04:34 PM   #1 (permalink)
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Exclamation Water leak in cab!!

on my passenger side whenever it rains it makes a nice puddle of water under the floor mat. I cant figure out were it is coming from and a water hose gets me no results. Also it doest seem very wet up near the firewall carpet just in the middle and to the door. Anyone have this problem? im at a loss here, any info is appreciated.
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Old 03-08-2011, 04:47 PM   #2 (permalink)
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Sometimes the window seal on the door will leak over time or will get pushed up a bit from the door. From there the rain goes down into the door shell and through the drain holes in the bottom and leaves a puddle on your floor mat. Could be your door seal too.
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Old 03-08-2011, 05:01 PM   #3 (permalink)
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thanks for the advise. From what i can tell it is not coming from the door seal or holes at the bottom of the door. leaking windshield seal? i dunno.
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Old 03-08-2011, 07:57 PM   #4 (permalink)
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Could be your third break light seal too
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Old 03-08-2011, 08:10 PM   #5 (permalink)
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same problem here, havent looked to see where its coming from though
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Old 03-08-2011, 08:18 PM   #6 (permalink)
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Rear window drain holes get pluged and leak, third brake light, door fills with water and everytime you close it water gets by the seal, windsheild, vent cowel seam sealer missing, a/c overflow, heater core. All can cause the lake.
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Old 03-08-2011, 08:27 PM   #7 (permalink)
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Yup.
I say, third brake light, and plugged drain holes in the rear window.

Remove the rear window and squeaky-clean everything and the drainage holes!
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Old 03-08-2011, 08:42 PM   #8 (permalink)
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Is the water in the front of the cab or the back of the cab?? My first thought was that your windshield might be leaking. Also how is the gasket around the passenger side door up at the cab drip rail? If it's in the back then yeah I agree with the guys on the 3rd brake light.
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Old 03-08-2011, 08:49 PM   #9 (permalink)
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Not to hijack the thread, but I have a small leak from somewhere, and I am clueless. Sometimes when it rains (<0.5 inch usually) I'll go out and start her up and drive her, and two or three drops will fall onto the console, or the seat under it (bench). Whenever it does this, I usually am near somewhere and pull over and feel around the headliner, ceiling. I can't find anywhere it's wet. Could this be one of the issues mentioned above? The cowl seal came off and I haven't put it back on.
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Old 03-09-2011, 12:19 AM   #10 (permalink)
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well i will check the rear window and 3rd brake light but the back carpet is dry to the touch the lake is up front on the passenger side.
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Old 03-09-2011, 11:11 AM   #11 (permalink)
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Same problem, mine is usauly when I run the a/c at all, Im going to try to seal up the area around the drain spout on the fire wall and see if that doesnt fix it. I thought I had the leak when it rained untill I dried it up, turned my a/c off and tried to get it to leak by driving in a downpore and blasting through 6in deep "lakes" on the road at 30mph. All that and nothing. That and it happens even when we dont have rain for quite a while
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Old 03-09-2011, 01:24 PM   #12 (permalink)
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Possibly plugged cowel drains... flooding through heater. It's impossible to easily see the drains, located behind the hood hinges.
There should be a drain from the heat/AC box through the firewall... a small rubber hose. Frequently gets plugged... or sometimes get damaged & lets water in! It's where AC tech looks for dye when repairing AC.
Every once in a blue moon, I have water drips from overhead console after a heavy rain... forcing past gaskets on marker lights.

Good advise all around. You'll have to systematically go through all possibilities.
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