2009 Silverado 5.3 rpm fluctuating between 40-50 mph
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2009 Silverado 5.3 rpm fluctuating between 40-50 mph
i have a 2009 Chevy Silverado 5.3 with 130k miles and when I get to 40-50mph the Rpms start to fluctuate up and down. I was wondering what it is and how much it would be to fix!