Thread: supercharger whine
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Old Dec 15, 2017 | 11:00 AM
  #7 (permalink)  
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onehundred80
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Joined: Apr 2006
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From: Ontario
Default Re: supercharger whine
The SC should not operate unless the magnet is energized although it will free wheel due to the air passing through it.
Could it be the air pump that is heard and not the SC? Maybe the air pump is operating all the time.
 
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