Check you Cowl Drain - IMBOC
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  • 1 Post By mmdpg
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post #1 of 12 (permalink) Old 11-12-2015, 04:59 PM Thread Starter

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Lightbulb Check you Cowl Drain

Fall and all of the falling leaves can stop us the Cowl Drain causing water to backup into your car.

Wifey heard water sloshing in her '10. Drained over a gallon of water from the cowl. Leaves has worked in and stopped up the drain. Also had to dry the carpet (wet/dry vac), vacuumed out the leaves in the cowl and replaced a soaked Cabin Filter.

While this was not the Bullitt, the same thing applies to the Bullitts. Check your Cabin Filter and clean out any leaves that are there.
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post #2 of 12 (permalink) Old 11-12-2015, 06:45 PM

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Sorry to be dense. Where is the cowl - how to get to the drain? Thanks. (Just got here - lots to learn!)


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New (2nd) owner of #3701. Seems to be unmodified. 94,000 miles
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post #3 of 12 (permalink) Old 11-13-2015, 07:22 AM
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The cowl is in front of the windshield. It's where the cabin air filter is located. There are two rubber drain "valves" on the fire wall that allow water out of the cowl, if they get clogged water can back up and go through the filter and into the passenger side dashboard area.
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post #4 of 12 (permalink) Old 11-14-2015, 10:33 AM

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Thanks!

Quote:
Originally Posted by mmdpg View Post
The cowl is in front of the windshield. It's where the cabin air filter is located. There are two rubber drain "valves" on the fire wall that allow water out of the cowl, if they get clogged water can back up and go through the filter and into the passenger side dashboard area.
This newbie (how can a 73-year-old be a newbie?) thanks you!

tom
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New (2nd) owner of #3701. Seems to be unmodified. 94,000 miles
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post #5 of 12 (permalink) Old 11-14-2015, 07:35 PM

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Maybe this will help

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post #6 of 12 (permalink) Old 11-16-2015, 02:25 PM Thread Starter

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Thanks Shortymustang for posting the video. What I found was that the cowl was full of water due to leaves collecting and stopping the drain. In addition to unstopping the drain and letting the water drain and removing the cabin filter (as shown in the video) I also used a vac and sucked out all of the leaves so it would not stop up again.

Since I also had water that had collected on the passenger carpet, I used the wet/dry vac to suck the water out of the carpets so they could dry out.

Not a hard job and if your Mustang stays outside, something you should do at least each year after the leaves have fallen.
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post #7 of 12 (permalink) Old 11-17-2015, 08:06 AM

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Boy! Does it ever. Thank You!


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New (2nd) owner of #3701. Seems to be unmodified. 94,000 miles
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post #8 of 12 (permalink) Old 02-19-2018, 03:19 PM
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Originally Posted by shortymustang View Post
GOOD Reminders! Ford recommends changing cabin filters every 20K Miles... can go w/ K & N as well, but not sure for cabin filter if worth the extra expense/hassle of cleaning, resetting once in awhile etc. Might be easier just to swap w/ standard available filters... out w/ old; IN w/ new; done!

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post #9 of 12 (permalink) Old 02-19-2018, 08:22 PM
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There's also a TSB #08-26-7 that details sealer "skips" and grommet issues that can cause water leaks into the cabin.
If you've cleaned out the leaves and still have an issue refer to TSB.
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post #10 of 12 (permalink) Old 02-19-2018, 09:42 PM
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Originally Posted by bullit4404 View Post
There's also a TSB #08-26-7 that details sealer "skips" and grommet issues that can cause water leaks into the cabin.
If you've cleaned out the leaves and still have an issue refer to TSB.
THANKS! GREAT advice!

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post #11 of 12 (permalink) Old 05-11-2018, 10:54 AM

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Quote:
Originally Posted by JackDW - 852 View Post
Fall and all of the falling leaves can stop us the Cowl Drain causing water to backup into your car.

Wifey heard water sloshing in her '10. Drained over a gallon of water from the cowl. Leaves has worked in and stopped up the drain. Also had to dry the carpet (wet/dry vac), vacuumed out the leaves in the cowl and replaced a soaked Cabin Filter.

While this was not the Bullitt, the same thing applies to the Bullitts. Check your Cabin Filter and clean out any leaves that are there.
my GF has a '10 that had this same issue. Water got into the cabin as well. What a PIA!
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post #12 of 12 (permalink) Old 09-05-2018, 11:07 PM
 
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There is a drain on each side. Be sure to clean both, or like me, you may end up frying the fuse box inside on the passenger side and the wiper motor in the cowl on the driver's side.
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