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Old 03-16-2010, 10:36 PM   #1
Corykins
 
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A/C Vent Noise

When my A/C is on, it sounds like something is fluttering in the duct. It doesn't appear to be blocked or anything, but the sound is pretty consistent.

Common issue?
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Old 03-16-2010, 10:56 PM   #2
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Drop your passenger side glove box and see if something got sucked into the blower (which is right behind the glove box).
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Old 03-16-2010, 11:40 PM   #3
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Thanks for the tip. I went ahead and pulled the glove box out, unfortunately I can't seem to find anything that might be causing the problem. It sounds like it's coming from the central vent, luckily I'm still under warranty. Looks like I'll be taking a trip to the dealership, unless you have any other suggestions?
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Old 03-17-2010, 08:47 AM   #4
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Quote:
Originally Posted by Corykins View Post
Thanks for the tip. I went ahead and pulled the glove box out, unfortunately I can't seem to find anything that might be causing the problem. It sounds like it's coming from the central vent, luckily I'm still under warranty. Looks like I'll be taking a trip to the dealership, unless you have any other suggestions?
Shine a flashlight into the central vents and see if you can see anything rattling there. The duct goes in about a foot before making a sharp downward turn. Access beyond that requires removing the top of the dashboard.
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Old 03-17-2010, 10:15 AM   #5
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Is it only when you press the A/C button or when you turn the fan speed up for any blower position? Does it happen in recirculate or open or both? How about parked vs local vs hwy?
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Old 03-17-2010, 10:54 AM   #6
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Quote:
Originally Posted by sex View Post
Is it only when you press the A/C button or when you turn the fan speed up for any blower position? Does it happen in recirculate or open or both? How about parked vs local vs hwy?

It seems to be apparent only on speeds 3 and 4 which leads me to believe it is in fact something stuck in there. Airflow setting and where I'm driving don't seem to have much of an effect.
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Old 03-17-2010, 12:28 PM   #7
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You can quite easily (as in, without cutting your fingers) unscrew the bottom of the blower motor housing, and take a look the fan. I put some WD-40 in there, and it made no difference whatsoever to the sound from the motor itself.
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Old 03-17-2010, 02:38 PM   #8
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FWIW, mine made a similar sound for a couple of days... and then just when I was starting to get annoyed and about to take it in, it went away by itself. That was a few months ago. I've had similar situations in other cars too, where it seems like the cause of the sound gets "worked through" and then is gone.
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Old 03-17-2010, 11:37 PM   #9
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I had the same issue until about a minute ago. I just pulled down the glove box and found a pine needle in my blower fan. Problem solved.
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Old 03-18-2010, 08:30 PM   #10
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Found it! A thin piece of plastic from a cigarette pack wrapper was the culprit! I'm SO glad I don't have to go to the dealership. I probably would have been made fun of mercilessly, not only by the mechanics but by my boyfriend as well. Thanks to everyone for their help!
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Old 03-18-2010, 10:49 PM   #11
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Old 03-22-2010, 02:08 PM   #12
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the air does get sucked from the air by the feet of the passenger side... that's probably why it was able to get stuck on the fan there.. hehe
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