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Old 06-05-2012, 01:46 PM   #982
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Member#: 301179
Join Date: Nov 2011
Chapter/Region: BAIC
Location: California
2013 WRX Limited


Originally Posted by gregorz4 View Post
Has anyone noticed the noise that ocurs when the a/c is turned on? Every 30-40 seconds the A/C makes a loud hissing/knock noise? Is this normal for most Impreza owners?
It should be the A/C Compressor. it Happens. Just check though. Look at your engine, and look at the Belts, there will be a fly wheel type device that compresses air, and will go on every few seconds.
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