Question about Ford F-250

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I have water leaking into the cab when it rains. It seams to be coming from under the dash. It's not dripping from the dash, but seems to be running down the firewall. My brother had a similar problem in his Mustang...the cabin air vent compartment drain hole was clogged with leaves, so when it rained the water would over flow into the cab. Could I have the same problem. If so, where is the cabin air compartment so I can inspect and fix. Thanks, Joe

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  • Ford Master
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Every possibility of being blocked or worst scenario that chamber is rusted out from dead leaves or salt from the roads

Posted on Jun 20, 2017

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6ya6ya
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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: Water in the cab from under dash passenger side

The condensation drain is plugged in the heater/AC plenum, the drain is under the hood at the very bottom of the firewall on the passenger side.
PLEASE RATE THIS INFO

Posted on Dec 02, 2008

  • 74 Answers

SOURCE: Wet floors (front and back seats) - Toyota Highlander 2002

sometimes the window weather strip isn't air tight and it could get in your door panel.

Posted on Feb 17, 2009

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SOURCE: Have a leak under passenger side dash when it rains. I think the door under the cabin air filter isnt closing is it an easy fix

Having just repaired this problem in a 1998 Buick Regal, I can tell you that fixing the water leak is actually quite easy. It took me quite a while to track down the source of water, but I have discovered that it comes through the cabin air filter. There is a seal on the passenger side of the cowl (A two piece unit, black plastic, against the windshield) that seals it to the windshield to prevent water infiltration. It is very small and somewhat hard to miss. I took the cowl off to change the filter when I discovered this.

You can make a diverter to go over the air filter under the cowl, or even easier is to use some clear RTV silicone (avalible at any automotive and most hardware stores) and put a good bead on the old seal. When you re-install the plastic cowl, be carefull where it goes against the windshield to make sure you don't "smear" the silicone. After you re-install the plastic retainer hardware, smooth out the bead and clean up the excess silicone(a wet finger and some old cardboard works great). Let it dry and clean up the water in the passenger compartment.

Cleaning up the water is the hard part. Removing the plastic trim around the door (if you grasp the trip peices firmly they just pull up off some metal clips,but they can be quite stubborn) you will notice the carpet just pulls up. At the bottom front corner of the front doors the carpet has a plastic hook that is around one of the trim clips. Lift it off that and the rest of the carpet towards the firewall just pulls up. If it has been a long problem, your carpet may be moldy. Also, the carpet edges and some of the more hidden panel clips are very sharp and may cut you while you are poking around, so be carefull.

Since the water entered through the air filter and right over the fan, you will at minimum want to replace the filter. I had mold and moss growing on mine. My fan also squeels and chirps now, so I know it got wet. Not much to do about that but replace it or carefully lubricate the motor.

In your question you mentioned a door underneath the filter not closing. On my '98 Buick Regal there is no door or valve of any sort. The filter sits right above the fan blades. It is the cowel's job to prevent water from entering this part of the vehicle. I hope this helps you fix your problem.

Posted on Jun 22, 2009

  • 1 Answer

SOURCE: 06 hummer h3-water on passenger floor after a rain

Hey I have the same problem, but only when it rains, it comes from the sunroof then leaks into the carpet.

Posted on Aug 19, 2009

babaphat
  • 24 Answers

SOURCE: rain water leaking into driver and rear passenger

this problem is most likely a sealing problem in either your doors or on your windshild. to check the doors first is the easiest, if you have had your windshild replace recently the that would give a god indecation. or you might just have a small rust hole around there. and then there is the your fresh air intake for your enviroment systems might have a hole. look around at all these places, but just know looking for holes is pretty labor intenstive because if you want to see everthing normally your taking alot apart

Posted on Dec 02, 2009

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Hey I have the same problem, but only when it rains, it comes from the sunroof then leaks into the carpet.

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