Heart Broken
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL
#2 was my leak problem. Rust on the seat brackets means nothing. Look up under the dash, you'll see plenty of surface rust on the unpainted metal.
Yes, well known issue on the mustang resulting in water pooling up until it floods into the cabin.
Google TSB 07-14-6
1) Two Rubber grommets in firewall get plugged up with leaves, etc.
2) Foam seals around the 10 windshield cowl mounting tabs.
3) The entire windshield cowl welded seam at the top of the firewall under the windshield cowl.
4) Rubber grommets entering the cabin thru the firewall.
5) Rubber grommets in both doors where they attach to the car body.
Google TSB 07-14-6
1) Two Rubber grommets in firewall get plugged up with leaves, etc.
2) Foam seals around the 10 windshield cowl mounting tabs.
3) The entire windshield cowl welded seam at the top of the firewall under the windshield cowl.
4) Rubber grommets entering the cabin thru the firewall.
5) Rubber grommets in both doors where they attach to the car body.
Thread Starter
1st Gear Member
Joined: Oct 2012
Posts: 94
From: PA
Well I took the Cowl off and I believe I have found the problem.
Where can I get a new foam gasket and plastic grommet? And is there any other sealant besides paying Ford whatever they want for theirs? What I think was happening was the rubber drain grommmet was blocked causing the water to damn up once it got so high and I parked on a hill it ran to the broken plastic grommet and into cab. I hope anyway.
Where can I get a new foam gasket and plastic grommet? And is there any other sealant besides paying Ford whatever they want for theirs? What I think was happening was the rubber drain grommmet was blocked causing the water to damn up once it got so high and I parked on a hill it ran to the broken plastic grommet and into cab. I hope anyway.
4th Gear Member
Joined: May 2010
Posts: 1,277
From: Temple, TX
I didn't see that this was ever actually answered, but if the 2 grommets on the firewall get clogged with debris, water can collect there and then overflow into the passenger foot well through the cabin air filter opening. I tend to check those every time I change my oil since you can get to them so easily.
Don
Don
3rd Gear Member
Joined: Dec 2006
Posts: 523
From: Chesapeake, Va.
You need to be careful with the "hot glue" Ford replacements, you could damage the paint or windshield if not careful. BTW, I still had leaks after using the new Ford replacements so I used some Automotive Goop and finally solved my leaks.
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL
I just used silicone sealant. Remove the foam gaskets and use some gasket maker from the auto parts store or clear silicone.
I know the tsb says not to use silicone, but they are the same people that used foam as a gasket, so what do they know.
I know the tsb says not to use silicone, but they are the same people that used foam as a gasket, so what do they know.
2nd Gear Member
Joined: Nov 2008
Posts: 240
From: The Gump, Alabama
I used body seam sealer from an Automotive paint supply house, worked great. Never had leaks again. I bought new grommets but it was a waste of money since I ended up gluing them in with seam sealer. I could've done the same with the old ones.
(This was all done on my 05 btw)
(This was all done on my 05 btw)