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Old 08-22-2014, 07:30 PM   #1
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Water on floorboards

Hey all I have 04 gt convert and now discovered water in rear passenger floor. Any ideas? I looked for drains In floor and I am guessing they no longer have them, is this a correct assumption or am I missing them?


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Old 08-22-2014, 07:46 PM   #2
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Same thing for me but under where the seat was( took them out)


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Old 08-22-2014, 08:38 PM   #3
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There is a design drain hole in the body joints just ahead of the the rear wheels. More than likely they are clogged causing the water to build up and not flow properly. Locate these holes and simply stick a small pipe cleaner or the like up in the drain holes and clear out debris.
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Old 08-22-2014, 09:15 PM   #4
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From what I understand is there is a drainage area inside the body under the rear quarter window that flows out through these little ports, pic shown.

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That is where you have to run a pipe cleaner or cloths hanger thru to unplug.
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Old 08-22-2014, 10:13 PM   #5
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Thanks guys!
I will look at it ASAP



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Old 08-22-2014, 10:20 PM   #6
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Same thing for me but under where the seat was( took them out)


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Your coupe is leaking water?
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Old 08-22-2014, 10:23 PM   #7
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Not sure, there have been 2 times i saw a puddle on the ground underneath where the seats were, but i never saw any water on the actual seats when they were still in. I've only ever seen it after i wash the car also. Seems like it is seeping upward somehow, no idea how.
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Old 08-22-2014, 10:30 PM   #8
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That's odd.
I can uderstand why a convertible would leak back there but it's strange that a coupe would.
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Old 08-22-2014, 11:40 PM   #9
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What is worse I just got new top. The last rain it was fine this rain was nothing in comparison and now leaks


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Old 08-23-2014, 09:06 AM   #10
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I have a vert but the drainage system in these cars is a nightmare. I've had the basic drain holes clogged but also had a really weird one where I would get water behind the front seats where rear passengers put their feet.

Turns out, some water entering the normal places on the cowl, near the windshield not only drains out the drains near the front wheel but also runs through the frame of the car and exits out the rear drain holes. You can see this by parking on an incline, or ramps, pulling off the plastic covers with Mustang written on them, running a hose near the bottom edge of the windshield and watching the water flow through the frame and exit out the back. There are holes you can look through which you will see when you pull the plastic off.

What was happening in my car, is that the seam sealer between floor pan, frame etc had gaps in it so the water never made it to the back of the car but would run right into the rear floor pan instead.

Took me a while to figure it out.
Seems to be a common problem with Ford and seam sealer as the S197 models had all kinds of water leaks as well.
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Old 08-23-2014, 11:54 AM   #11
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What is worse I just got new top. The last rain it was fine this rain was nothing in comparison and now leaks


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It has nothing to do with the top for why it is leaking. It is leaking because the drain area is clogged. Ford designed the convertables to drain water down thru the rear quarter window.
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Old 08-23-2014, 12:14 PM   #12
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My buddy had an 07 coupe that after being parked two week had a small pond in his back seat floor boards, so it stems to both coupe and conv.


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Old 08-23-2014, 02:23 PM   #13
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so it stems to both coupe and conv.


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Yes, both coupe an convertables have these drainage ports that are located in the same areas, and both can get clogged.
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Old 08-23-2014, 03:08 PM   #14
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The S197 were really bad leakers.
Seam sealer, missing grommets etc. And those leaks were near the ecm which really caused nightmares.


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Old 08-23-2014, 03:24 PM   #15
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Ford put them there to allow water to flow out instead of the old cars had none and the speakers and inner fenderwell would rot cause the water had nowhere to go. So Ford figured that if the quarter window seal was rotten dry cracked and hard, then the water of course would go into the fenderwell under the quarter window and go right out the seep hole..
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Old 08-23-2014, 03:29 PM   #16
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Makes sense!


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Old 08-23-2014, 04:37 PM   #17
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Cool thanks guys



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Old 08-24-2014, 07:29 AM   #18
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I disagree that it has nothing to do with the top. It very possibly might. I chased down a leak in mine for weeks. Unclogged the drains, had it on a lift with a hose soaking it, replaced weather stripping etc. Finally threw up my hands and took it to a convertible top shop. They said the top wasn't aligned correctly by the prior owner. They took it off and reinstalled it. $150 and I haven't had a drop of water since. Literally was going crazy, best money I've ever spent on this car.


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