Heater Box filling with water and then leaking inside truck - Ford Powerstroke Diesel Forum
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Old 05-15-2014, 06:06 PM
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Heater Box filling with water and then leaking inside truck

Hey guys,

Im posting this here as well so i can try and get some help FAST...

My 2000 f250 7.3 has a problem i just discovered. It has been raining for a few days here HARD and when i went to drive my truck today i noticed the pass side carpet was wet by the door sill. I removed the carpet and they area under the door panels was filled with water. So i dried it all up so i could find where it was coming from. It turns out it is coming from the heater box under the dash. If i put the heater position to OFF and the door flap opens by the heater and then i go for a drive, water will splash out of the heater box. If i put the position onto floor or any other position it will close the heater box trap door and water will not splash out. Why is water getting into my heater box? And yes it is 100% rain water, NOT coolant. Also is there a drain that could be clogged? has anyone had this issue? Thanks!
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