Question about Subaru Forester

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2003 forester - there is water leaking in the front passenger side floor when the air conditioner is running. sometimes a hissing sound also in the same area.

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  • Sailor Pete Sep 15, 2008

    2008 Subaru Forester, 16,000 miles, suddenly started dripping a lot of water (2 quarts) with A/C on humid days into the front passenger footwell. I agree it seems like the condenser is not draining & I will try to find the drain after work. I also get the hissing sound, might be water backing against something hot.

    Thanks in advance for the advice, it sounds likely.

  • Anonymous Mar 15, 2014

    leak in drivers side front floor 2003 Rav4

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  • Subaru Master
  • 61,037 Answers

You need to clear the condenstate drain for the AC evaporator core, it is under the car, as far as the hissing, sounds like a vacuum leak, look for a disconnected small hose around the area of the noise.

Posted on Aug 04, 2008

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The problem you describe could be from condensation. On very humid days, I have seen some condensation from auto air conditioners blow through the ducts. If you run your A/C in the heat/defrost mode (it probably comes on by itself when you run the defroster), that could happen, and the water could be leaking down through the heater vent. It could be a sign that you're A/C unit is low on refrigerant, in which case, you'd need to get the system serviced.

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