Soaked passenger side floorboard, where is the A/C drain located?

2010 MERCURY MILAN
168,000 MILES • 2.5L • 4 CYL • 2WD • AUTOMATIC
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JAE SCOTT
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I understand that the reason my passenger side floorboard being constantly soaked is because of a clogged A/C condenser drain? I have looked all over online and am unable to find the location of this drain.
Feb 14, 2023 at 2:47 PM
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STRAILER
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Can you tell if it is coolant or water? if it is coolant, you have a heater core that is leaking, if it is water then you are correct, and the AC evaporator drain is clogged here is a video to show you how to find it and how to clean it out.

https://youtu.be/q9_MZiS2_NE

Here is the location, check out the images below.
Feb 16, 2023 at 10:56 AM
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JESSY SARTIN
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I'm pretty sure its water. Also, when I make a turn, I hear a water sound sloshing to the other side of the car. Like there is water trapped somewhere behind the dash....
Feb 19, 2023 at 3:43 AM
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STRAILER
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Yep, it does sound like it is water, I would follow my first and clear the evaporator drain.
Feb 19, 2023 at 11:17 AM
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JESSY SARTIN
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I found the condenser drain tube. I used an air compressor to blow air inside it and even pushed a metal coat hanger inside the drain tube. I was unable to unclog it but there was a small amount of water leaking out. Everything around the drain is wet also. How else can I unclog this tube? My passenger side floorboard on both front and rear are completely soaked and smelling like mildew. I even have been using a shop vac to such up excess water but it's only helping to a degree. Help!
Feb 26, 2023 at 6:59 AM
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STRAILER
  • ASE Certified Mechanic
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  • ASE Certified Mechanic
If you cannot unclog the drain, then the HVAC housing will need to be removed and disassembled to find the obstruction. Here is an outline of what needs to be done, the AC system must be evacuated. please check out this video:


https://youtu.be/4EqdrBVb0sY


Also, the cooling system drained, then the dash will need to be removed check the instructions below to finish the job. Check out the images (below). Please let us know what happens.
Feb 27, 2023 at 8:31 AM
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