Water sound coming from behind dash

2012 FORD FLEX
118,000 MILES • 3.0L • 6 CYL • 2WD • AUTOMATIC
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WAREMD
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After a bad rain storm, I heard water that appeared to come from behind my dashboard. Been going on for about four weeks. Sound of water is most prevalent at a cold start, when I accelerate/reverse and less as you started to drive and the car got warm. We took off the grill and cleared the cowl's. Only the driver side had the rubber plug/drain, the opposite did not have a rubber plug/drain. Both sides were really clogged and there was some standing water. After vacuuming up the leaves and unclogging the plugs, the water rushed through and fell to the ground. We thought we solved the problem. Put everything back together and got in my car the following morning and when I start my car I still hear water behind my dash board. Not as much as before, but it is still there. When I accelerate, I also hear water sloshing about. It is not dripping inside my car nor do I see it on the ground? I do find that the car does drive a bit more sluggish since, so I am confused on what to do/look at/unplug at this time?
Mar 20, 2018 at 10:26 AM
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MHPAUTOS
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Is the coolant level low? with low coolant you can hear this noise as you get air in the heater core.
Mar 21, 2018 at 5:58 AM
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WAREMD
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Hi I wish I could say yes. Unfortunately my husband checked all the fluid levels and they are all topped off. The best I can explain it sounds like water is trapped in a cavity somewhere. When I made a sharp right, it sounded like the water quickly rushed to the right of my dash. And when I accelerate, sound like water rushes front it back. It is driving me insane. My carpets are dry, no water is leaking outside. And when my husband did see a water leak under my car he put a napkin on it and pulled it up and let the fluid drip on his hand. No color, no order and clear as day. So he knew it was water but if we cleared the cowl drains where else can it be? Are there cowl drains under my car that I need to clear? Something is clogged and I cannot figure out where? It is too cold to run the AC but I have been using my heater a lot. Someone told me to clear my AC drain, where do I find that under my car? Sigh.
Mar 21, 2018 at 8:07 AM
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MHPAUTOS
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The A/C drain is just a small tube that allows condensation to drain from the heater box while the A/C is running, if this was blocked you will get water into the cabin. if you can supply the VIN number i may be able to find something on the Ford factory tech site. also, i need to know what country you are in please.
Mar 21, 2018 at 4:29 PM