Question about 2006 Toyota Corolla

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There is water the fills the floor of the passenger side of the car when the air conditioner is running

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There should be a drain hose for the AC on the firewall underneath the evaporator, try sticking a straightened out coat hanger up the hose to clear any blockage.

Posted on May 19, 2011

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The AC condensation drain is clogged, when the AC is on water is condensed on the cold AC evaporator core (this part is what cools the incomming air), this water drains out the bottom of the heater/AC air duct, the drain is at the bottom of the firewall under the hood on the passenger side, run a coat hangar up into the drain to clear it.

Posted on May 19, 2011

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Posted on Jan 02, 2017

chuck943
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SOURCE: water on passengers side and back

Your AC drain is stopped up. You will probably have to access it from underneath the vehicle. Look under hood at the bottom of the evaporator,heater core housing and you will see either a black plastic tube or a rubber tube coming off of it. Take an air hose and blow into it and see if this unclogs it.You can try something like a coat hanger if this doesn't work but be extremely careful,you do not want to puncture a hole in the evaporator.

Posted on Jun 22, 2009

  • 316 Answers

SOURCE: water in floor on passenger side

The issue is condensation from your air conditioner not properly draining. This is usually caused by a damaged, or clogged drain hose. The condensation is supposed to drain outside the vehicle by way of a hose on the firewall area.

Posted on Jun 16, 2009

  • 119 Answers

SOURCE: Wet floor in car

the evaperator drain tube is plugged,blow air through tube to free obstruction,you gain access from the engine compartment on passanger side close to exhaust,

Posted on Jul 19, 2009

  • 2 Answers

SOURCE: 2001 Mitsubishi Galant leaks water into passenger

The A/C evaporator drain tube is most likely blocked. If you have a V6, you're in for a real treat trying to reach the thing to clear it. The tube is on the firewall behind the driver's side rear motor mount, and slightly to the left as you're facing the firewall. It is a 1/2" diameter metal tube projecting about 1/2" from the firewall, and is covered by the firewall sound and heat blocking material which has to be folded back to reach the tube. A pair of what I believe are brake lines are one finger's-width in front of it, making it VERY difficult to get to the tube. (Brilliant design, Mitsubishi!) If you are very dexterous, you can slip a small piece of wire or a cable tie under the brake lines and into the tube from the front to try and clear it. Good Luck!

Posted on Jul 12, 2010

  • 6982 Answers

SOURCE: My Air conditioner stopped blowing

Water on the floor is generally caused by a plugged drain (located on the engine side of the firewall about opposite where the passengers right foot would be...small rubber hose, usually bend downward.)
It is possible that the evaporator may have iced up due to water in there but generally it should work again after it's been off and the ice melts. Also check the coolant level in tha radiator...the water could be antifreeze from the heater core.
Could also be that there is a control problem and the water has nothing to do with the malfunction itself.
Since the system is a bit complex, and most items are difficult to reach unless you have lots of time and a manual, probably better to have a shop do the work. There are many items you can do at home but heat and A/C unless they are obvious visible failures are something that most people including some techs have problems with.

Posted on Oct 25, 2010

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1 Answer

I have a 2009 Kia Optima and the air conditioner is leaking water on the floor board on the passenger side


the drain hose has come off of evaporator housing. look for the hose that has come detached and reattach back onto drain nipple of evaporator.

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Sounds like the outside drain is stopped up.
There should be a tube coming out of the firewall near the passenger floor.

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The usual problem when this happens is that the drain line from the AC condenser is plugged causing it to fill up with water which eventually finds a way out and drains onto the passenger side floor. It is fairly easy to fix but requires getting underneath the car on the front passenger side, locating the drain line, normally a flexible hose coming down through the frame roughly below the dashboard. and running something like a coat hanger up through the drain line to remove the blockage. Beware that water will start to run out the hose as the blockage is removed.
Some cars have this problem more frequently than others and you may have to repeat this procedure every year or so. When it starts dripping water on the passenger side again it's overdue.

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Why does water leak inside the passenger side of my 2001 mitsubishi montero from my air conditioner?


your a/c evaporator drain is stopped up or blocked off can be seen at firewall area on passenger side looks like a short black hose coming out of firewall and turns down with nothing hooked to it if this gets restricted the blackbox under your dash fills with water and eventually leaks in floor you can try and run small piece of wire up hose to unstop but be careful not to punchure evaporator core

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I have water running from under the passenger side interior floor board what could it be coming from or has any one else experienced it really flows when turning corners


It sounds like condensed water from the air conditioner. Just like a glass with ice in it sweats, the cold part of an air conditioner sweats. That water needs to go somewhere. There is a drain on the bottom of the ductwork that comes out under the car, often toward the passenger side.

If the drain gets plugged, the A/C still sweats, but the water builds up inside the ductwork.

You can often clear the drain by blowing some air up the drain from the outside. (Don't use too much pressure!)

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1 Answer

Water in floor on passenger side


The issue is condensation from your air conditioner not properly draining. This is usually caused by a damaged, or clogged drain hose. The condensation is supposed to drain outside the vehicle by way of a hose on the firewall area.

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1 Answer

Water coming in to front passenger floor when it rains


The heater/airconditioner box under the dash has a drain hose to allow condensation to drain when the air conditioner is running. If this hose gets plugged, rain may accumulate in this box also (if it's raining heavily), as it comes in through the fresh air intake.

Look on the engine side of the firewall, probably on the passenger side, for a hose coming through the firewall that is not connected to anything. It is usually short, has a 90 degree bend, and the open end is down. Make sure that the end of this hose is not plugged.

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