Question about 2006 Mercury Montego

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A/C Compressor Drain is Plugged

Water pours into the passenger side from under the dash. We had cleared a mouse nest out that was by the windshield under the hood. So it kept draining into the car for several weeks and people kept looking for the problem to no avail. Someone suggested the A/C Compressor drain being plugged so we'd like to know where that is and best way to unplug it.

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  • Mercury Master
  • 21,873 Answers

Well the actual name is the ac evaporator drain. It works much like your fridge at home.
Under the passenger side floor is a small tube that extends out from the heater box inside. The tube is usually the size of your thumb. It allows condensation to drain out onto the ground under the car while the ac is working.
You may need to talk to a body shop or garage to find out exactly where the tube is. And you may have to take the heater box apart to clean it out completely.

Posted on Apr 24, 2013

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6ya6ya
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Posted on Jan 02, 2017

emissionwiz
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SOURCE: Location of radiator drain plug

bottom of the radiator on inside of coolant tank. (engine side)

Posted on Feb 12, 2009

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SOURCE: A leak has developed inside my 1994 Mercury

i had same problem when in the rain or car wash turned into a $1000.00 repair for a losse couple of bolts holding the drip channel under the windshield with bolts below the carpet, it will take 2 people the fix one inside car one outside under hood, good luck

Posted on Nov 10, 2009

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SOURCE: Do you know where I can find a wiring diagram for

first have battery load tested, then see if disconnecting alternator does anything

Posted on Jan 09, 2010

Ford007
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SOURCE: Water collection in the air conditioner. Drain is

You need to clean the drain out as your first step. This is accessed by raising the vehicle on a lift then using something like a coat hanger pressed into the drain hole at the base of the firewall next to the transmission bellhousing on the passenger half of the vehicle.

Posted on Mar 17, 2010

  • 202 Answers

SOURCE: Where is the drain plug

Look for the oil pan under the car. I did a google search and it gave me this:

mf_grimm_3.jpg
Look for the drain plug is and carefully loosen it and drain your oil. Good luck.

Posted on Jul 23, 2011

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