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Old 08-18-2010, 09:19 AM
benhogan's Avatar
Join Date: Aug 2009
Location: Chapel Hill
Posts: 1,088
"smoke" from the vents

When the AC is on, there is some white smoke coming from the vents.

Does this mean the freon is leaking? but isn't freon clear?

Could this be coolant from the heat core?

This is for a 03 Rav4. Any ideas as where I might start looking?

1987 190d 2.5Turbo
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Old 08-18-2010, 10:07 AM
The Clk Man's Avatar
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I would say that it's just condensation.
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Old 08-18-2010, 10:20 AM
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Join Date: Mar 2008
Location: Singapore
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I agree with CLK,, if it were leaking wouldnt have cool air. If the air inside your dwelling is warm and moist, you will see 'clouds' when the air-con is on. I was on an airplane recently travelling to Thailand, and saw the same 'cloud' you are seeing. Air-con actually removes moisture from the the windows in your car fog turning on the vehicles air-con...the moisture inside the cabin is removed, and the windows clear up. I wouldnt be concerned about what you are seeing at your place.
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Old 08-18-2010, 12:19 PM
elchivito's Avatar
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Our cars all do that when it's very humid. It's condensation, not smoke. No worries.

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