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Posted on Nov 13, 2009
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My 2007 Silverado Classic has a humming noise and vibration at 45-50 mph abouve 50 or below 45 it is not heard or felt. The shop told me it was the exhaust housing causing the noise. That somehow seems way off the mark to me.

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  • Expert 86 Answers
  • Posted on Nov 13, 2009
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Joined: Oct 07, 2009
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A exhaust heat sheild can make that noise

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