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Old 05-06-2013, 09:07 PM   #1
crateish
 
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Stinky mildew smell after running AC.

Wasn't like this last Spring. When I run the AC, then run the fan without AC when it cools in the evening, it smells like mildew. Bad.

I'm at about 21k miles. Do you think this is the cabin air filter or is it something else.

It goes mostly away after I run the fan for 7-10 minutes.
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Old 05-06-2013, 09:12 PM   #2
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i have the same thing when i first turn it on, idk what it is
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Old 05-06-2013, 09:14 PM   #3
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Same here and it was bad enough I rolled the windows down
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Old 05-06-2013, 09:15 PM   #4
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Stop running your car with recirculation on the entire time. You're not allowing fresh air to enter the car and are providing an excellent environment for mold.
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Old 05-06-2013, 09:15 PM   #5
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It's pretty easy to check the filter. May as well start there. Is it only in ac mode? Or does it in vent or heat too?
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Old 05-06-2013, 09:15 PM   #6
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I think it's the cabin air filter. Change it or try to rise it out
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Old 05-06-2013, 09:25 PM   #7
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Stop running your car with recirculation on the entire time. You're not allowing fresh air to enter the car and are providing an excellent environment for mold.
I never do that.
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Old 05-06-2013, 09:26 PM   #8
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It's pretty easy to check the filter. May as well start there. Is it only in ac mode? Or does it in vent or heat too?
It's only AFTER AC mode. I run the AC. Then I switch to just vent air. Smell happens instantly.
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Old 05-06-2013, 09:49 PM   #9
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Weird as it sounds, try removing the air filter, turn on the fan full blast, and spray a can of antibacterial lysol in the vent. Remember to cover the vents inside the car!

Your car will smell good and in a few days, no more smell. Worked for me :-)
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Old 05-06-2013, 10:01 PM   #10
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I had this happen when I first bought my car (bought used with 14k). I replaced the cabin filter and POOF, no more musty smell.
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Old 05-06-2013, 10:05 PM   #11
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I had the same problem. Lysoled the air filter, but came back after 2 weeks. Now thinking it could be mold on the evaporator coil. Isn't that uncommon of a problem after wet or humid winters.

Here's another thread on it:
http://www.camaro5.com/forums/showthread.php?t=52971
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Old 05-06-2013, 10:21 PM   #12
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If you are running your AC, before you turn the car off or get home turn the AC off and just run the fans for about 2 minutes. It will dry out all the condensation that causes the nasty odor. (this is preventive maintenance it will not rid the smell that's already there)
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Old 05-06-2013, 11:03 PM   #13
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Is there a diy on changing the cabin filter? Sorry my search option doesnt work on my SG3
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Old 05-06-2013, 11:12 PM   #14
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Quote:
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If you are running your AC, before you turn the car off or get home turn the AC off and just run the fans for about 2 minutes. It will dry out all the condensation that causes the nasty odor. (this is preventive maintenance it will not rid the smell that's already there)
+1

I always hit the button to turn the AC off when I'm about 2-3 blocks from where I'm going. I'm in Arizona, so the coils dry fast. Other climates would likely need more time?

No smells and my Camaro is 4 years old.
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Old 05-07-2013, 12:47 AM   #15
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Is there a diy on changing the cabin filter? Sorry my search option doesnt work on my SG3
cabin air filter replacement- Chevrolet Camaro
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Old 05-07-2013, 11:58 AM   #16
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Quote:
Originally Posted by San2cci View Post
If you are running your AC, before you turn the car off or get home turn the AC off and just run the fans for about 2 minutes. It will dry out all the condensation that causes the nasty odor. (this is preventive maintenance it will not rid the smell that's already there)
I will do that... from now on. Good advice.

Now, is cleaning the evaporator coil something I can do, or do I need to take it in. The smell is intolerable.
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Old 05-07-2013, 01:28 PM   #17
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I think it's the cabin air filter. Change it or try to rise it out

+1 I was getting the same skunky smell in the mornings when I would ride out. I always thought for some strange reason either I had ran over a dead skunk or something was lodged under my car. But once I changed the cabin filter I notice the smell went away.

So maybe its time you change it out if you haven't already
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Old 05-07-2013, 01:49 PM   #18
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Thanks.

I keep getting a this video is private message on youtube.
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Old 05-07-2013, 01:52 PM   #19
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Here is a DIY with pics:

http://www.camaro5.com/forums/showthread.php?t=288347

The guy that did that DIY is an awesome dude
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Old 05-07-2013, 02:10 PM   #20
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X2 on the Lysol, then a new filter. Also, check to make sure condensate is able to drain out of the a/c and that the drain isn't clogged.

John B.
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Old 05-07-2013, 02:14 PM   #21
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If its under warranty, they can clean the evaporator and add a mildew removal agent (lysol). When I worked at a dealer we did that a few times a month in the summer.
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Old 05-07-2013, 04:23 PM   #22
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Here is a DIY with pics:

http://www.camaro5.com/forums/showthread.php?t=288347

The guy that did that DIY is an awesome dude
Awesome. Thanks.
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Old 05-07-2013, 05:07 PM   #23
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I have the same problem - changing the cabin filter didn't do any good. The smell isn't always there and when it is, it's tolerable, but still annoying. I'm afraid that with my luck, I'll take it to the dealer and it won't smell at the right time. :/
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Old 05-07-2013, 05:11 PM   #24
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It's common in most cars. As Easton said, the dealer will take care of it for you.
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Old 05-07-2013, 05:39 PM   #25
el ess A
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You could change the filter. But run the heater on full blast for about 15 minutes first. It's virtually free to try and if it works, you're good. It will help dry out the evaporator.

Had the same thing happen to my 2010 GMC. No cabin filter, but after running the heater full blast for 15 minutes, the musty smell is gone.
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