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Old 05-23-2012, 07:32 PM   #1
htownboxer86
Scooby Newbie
 
Member#: 261422
Join Date: Oct 2010
Chapter/Region: MAIC
Location: Chesapeake, VA
Vehicle:
06 WRX TR
UGM

Default A/C chirping noise

So it's starting to get warm out and i decided to turn on my A/C after not using it for a long while. When i turned it on, i heard a chirping noise for about 3-4 seconds before it stopped. As i put my car into reverse to back out of my driveway, the chirping kicked back up until i came out of reverse and took off in 1st. I'm not hearing it when I'm driving except for a split second every once in a while during cruising. I'm not too experienced when it comes to belts and the A/C system, so i figured i'd ask to see if anyone has any idea what the cause of this is or has experienced this themselves?
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Old 05-23-2012, 09:36 PM   #2
htownboxer86
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Member#: 261422
Join Date: Oct 2010
Chapter/Region: MAIC
Location: Chesapeake, VA
Vehicle:
06 WRX TR
UGM

Default

Update: I noticed one of my belts was slightly looser than the other, so i tightened it a quarter of a turn. I'm not really sure how tight "too tight" is, so i'm kinda iffy on going tighter. turned the car on and heard the chirp for a split second and let sit. Didn't hear it again, but won't know for sure till i head to work in the morning. Anyone have any other suggestions or prior experience with the issue?
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Old 05-23-2012, 10:45 PM   #3
Samurai Jack
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Join Date: Jul 2002
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Vehicle:
2002 Enemy of Aku

Default

As far as the loose belts go, no more than 1/2" depression at the center point of the belt between the 2 pulleys.

As for the chirping noise, take an air gun and blow out all the dust around the A/C compressor housing. You'll get a bunch of red dust come flying out. That will stop the chirping noise
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