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Bone Stock 2010 CTS-V Sedan
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Discussion Starter #1
Hi all,

I just replaced my supercharger at GM dealer under the special warranty due to the well know rattle noise. However, a new noise developed now at idle, this noise was there since I received the car, it is exactly the sound in this video: http://youtu.be/rnoHdEJDD-8

The supervisor and the technician told me it is normal and pulled out the bulletin that talks about the supercharger noise 800-900 rpm under load. But the noise in my car is at idle.

please let me know if I should worry about it. Thanks.
 

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Sounds normal to me! My 2014 V has the new style supercharger and sounds just like that. Dealer won't replace it.
 

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Discussion Starter #4
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