air conditioner drain mold smell

2008 CHEVROLET IMPALA
88,000 MILES • 3.9L • 6 CYL • FWD • AUTOMATIC
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EFRAIN001
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Hello my car has the 3.9L engine. For the past two years I get a moldy smell whenever I have the air conditioner on. I assume there is a drain plugged, but I do not know where I can locate this drain. can anyone help me locate this drain and if you have pictures that would be great? Thank you.
Jun 20, 2016 at 1:46 PM
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CARADIODOC
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  • 34,308 POSTS
They are almost always on the passenger side of the firewall, under the hood. Look for a 4" long rubber hose with a 90 degree bend, hanging down. Water will drip onto the ground just inside of and behind the right front tire.

If the drain is blocked, water will build up in the drain pan and overflow onto the passenger's floor area. To solve that, locate that drain hose and squeeze the end to open it up. If no debris comes out, squeeze the wire ring that holds it on, then pull the hose off. Stick a pencil into the plastic spout to try to dislodge any debris.

If the moldy smell continues, dealers' parts departments have a spray product to neutralize the odor.
Jun 20, 2016 at 7:28 PM
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EFRAIN001
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Thank you
Jun 22, 2016 at 2:23 PM
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