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Old 09-11-2019, 04:46 PM   #1
Flopka
Scooby Newbie
 
Member#: 311293
Join Date: Feb 2012
Vehicle:
2012 Impreza wagon

Default Sudden noise and passenger side inside water leak - A/C?

I suddenly began hearing a sort of loud ruffling/flapping noise in my front passenger footwell area - thought an animal got into my car! -- and when I got home shortly after, I saw there was fluid (apparently water) dripping quickly into the passenger footwell. Not a lot, but fortunately it began to stop as soon as I shut the car off. I'm assuming this is an A/C condensation leak of some kind, as the A/C was running (not a particularly hot day).

I'm not familiar with the exposed equipment that can be seen by peering up above the passenger footwell, can someone direct me to a diagram?

Did something get sucked into something causing the flapping, or did a seal fail, or what could have happened suddenly like this? What should I tell the garage when I take it in? (I'm not really able to look at it in-depth myself)

2012 Impreza. (And no problems until today!)
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Old 09-11-2019, 07:25 PM   #2
Mulder
Trust no one
Moderator
 
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
Vehicle:
02 RAV4 MT
15 WRX/05 GTO

Default

There is a drain hose from the evaporator housing that allows the water from AC condensation to drain out and under the car. If that hose is clogged or disconnected the water will collect inside the car instead of draining outside. This is the first place the shop should look.
I don't know what your situation is regarding not being able to check it yourself, but it's not that hard to do a quick check by pulling the mat/carpet back on the passenger side. You should be able to see the hose and whether it's attached or kinked. If it's connected and looks ok then it may be clogged with crud in which case it will need to be snaked or blown clear.
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Old 09-11-2019, 11:08 PM   #3
CosmoTheCat
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Member#: 3409
Join Date: Jan 2001
Chapter/Region: NWIC
Location: Oly
Vehicle:
98 My FMIC
Is bigger than yours.

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Likely water backing up into your blower motor, due to a clogged evaporator drain. Get something flexible and run it up the drain tube, a bunch of water should come dumping out. Then run the AC on full hot for a while to try and dry everything out, so you don't get a bunch of mildew growing.
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