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Old 04-13-2012, 06:40 PM   #202
jewel25
Mother of PWA Babies
 
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Drives: 2011 RJT 2LT/RS
Join Date: Apr 2011
Location: Central Pennsylvania
Posts: 37,115
I had the same issue. Dealer told me to slow down or speed up. said they called GM and they are aware of the issue but don't have a solution yet. Issue went away after installing my MRT exhaust. Don't feel the vibration any longer.
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