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Stinky Smell From The A/C when first started

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Old Feb 13, 2009 | 10:36 PM
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Default Stinky Smell From The A/C when first started

Just wondering if anyone else has experienced this or is it just me. I hardly ever drive my car...Maybe air filter..Maybe a/c needs service??
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Old Feb 13, 2009 | 10:38 PM
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What is the smell, can you relate it to something.. like, does it smell like plastic? Like outside air? The smell of "the day after it rains"? Does it smell like mildew? Like oil?
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Old Feb 13, 2009 | 10:47 PM
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I'd first replace the $10 cabin air filter located under hood, beneath windshield passenger side.



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Old Feb 13, 2009 | 10:50 PM
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Originally Posted by keyplyr
I'd first replace the $10 cabin air filter located under hood, beneath windshield passenger side.


And stop farting with recirc on...:o
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Old Feb 13, 2009 | 11:34 PM
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I have the same problem in my 05/c6 and i tried changing the cabin air filter but had no luck with getting rid of the smell, it's hard to explain the smell, its not plastic or mildew just a foul odor. i'll keeping checking this thread in the hope someone can help!
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Old Feb 14, 2009 | 11:10 AM
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Originally Posted by bus#82
I have the same problem in my 05/c6 and i tried changing the cabin air filter but had no luck with getting rid of the smell, it's hard to explain the smell, its not plastic or mildew just a foul odor. i'll keeping checking this thread in the hope someone can help!
Yeah...what Bus said...just a foul odor. My GM dealer said that the a/c system might have to be serviced. What the Hell its only got 10k on it.. And as far as the farts, Dont know about yours but mine are totally reconizable!!!!LOL
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Old Feb 14, 2009 | 01:55 PM
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Residual dampness can promote mold/mildew growth. If it’s a musty smell, turn off the AC five minutes or so before you shut the engine off, and run the ventilation to dry out the system. If that doesn’t do it some cleaning may be necessary.
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Old Feb 14, 2009 | 01:59 PM
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some dealers have a treatment [spray] for mold/mildew or the smell is the rotting decay of the car dying from boredom
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Old Feb 14, 2009 | 02:07 PM
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Originally Posted by patton
some dealers have a treatment [spray] for mold/mildew or the smell is the rotting decay of the car dying from boredom
lol my vette is an 05/c6 w/48k, as you can see my vette isn't bored!! but i will try the shutting down the system method.
thanks john

Last edited by bus#82; Feb 14, 2009 at 02:14 PM.
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Old Feb 14, 2009 | 02:14 PM
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Originally Posted by Mega C6
Just wondering if anyone else has experienced this or is it just me. I hardly ever drive my car...Maybe air filter..Maybe a/c needs service??
I used the Tech 2 to activate the HVAC after blow module. This helps to dry off the evaporator after AC usage.
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Old Feb 14, 2009 | 08:15 PM
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Originally Posted by John Harry
Residual dampness can promote mold/mildew growth. If it’s a musty smell, turn off the AC five minutes or so before you shut the engine off, and run the ventilation to dry out the system. If that doesn’t do it some cleaning may be necessary.


Turn the AC off a few minutes before the engine is turned off.

That's what I did and no more smell.
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Old Feb 15, 2009 | 07:57 AM
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Originally Posted by John Harry
Residual dampness can promote mold/mildew growth. If it’s a musty smell, turn off the AC five minutes or so before you shut the engine off, and run the ventilation to dry out the system. If that doesn’t do it some cleaning may be necessary.
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Old Feb 15, 2009 | 07:40 PM
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OK I will try that!!! Thanks guys I wonder why the awesome ASE mechanics dont know that trick???Prob over qualified.
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Old Feb 15, 2009 | 07:58 PM
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Yeah, you wonder. It is certainly not a problem that's limited to Corvettes.
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Old Feb 16, 2009 | 07:13 PM
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you might want to also check the a/c drain for blockage
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Old Feb 16, 2009 | 10:18 PM
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Originally Posted by calemasters
I used the Tech 2 to activate the HVAC after blow module. This helps to dry off the evaporator after AC usage.
Me too, this is the way to go. And it works better than turning the car air off 5 minutes before you arrive at your destination. I tried that and it is not comfortable and does not work as well.

Last edited by GHWelles; Feb 20, 2009 at 06:33 PM.
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Old Feb 17, 2009 | 08:40 PM
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You know what guys....Why does this not happen in my Hummer, ford f250 , or my 99 ws6 trans am????? Just my vette..weird
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Old Feb 18, 2009 | 07:08 AM
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It can happen on any car with AC. Some AC evaporators have a coating on them to help prevent mold. The downside is that these coated evaporators have la lower heat transfer rate.
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Old Feb 18, 2009 | 09:33 PM
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Wow....u r the man,Thanks a million. I think alot can be learned from this thread..
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Old Feb 20, 2009 | 06:28 PM
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Originally Posted by Mega C6
You know what guys....Why does this not happen in my Hummer, ford f250 , or my 99 ws6 trans am????? Just my vette..weird
I was looking at it and it looks like the drain tube comes out of the front of the evaporator box, and is partway up the box. I would think it would be better to have the drain on the bottom of the box if you wanted complete drainage.

However, GM says that the Corvette climate control controls temperature and humidity. Maybe the idea is to have some water in the evaporator box to promote humidity. I do notice the air in the cabin does not feel as dry as other cars after running the air for a long time, and I like that.

Last edited by GHWelles; Feb 20, 2009 at 06:33 PM.
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