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  1. Engine & Performance
    I recently purchased a 2010 GMC Sierra 1500 with a 6.2L, first issue I encountered was a bad coil pack on cyl. 8 that issue has since been fixed. Now I am encountering what I can only describe as what feels like a miss, or backfire on acceleration. Just noticed it this morning after picking up...
  2. Engine & Performance
    Hey guys, I wanted to get your ideas on an upcoming project I will have coming up. I have a 2008 Chevrolet Silverado 1500 with 180,000 miles and have been using a Range device to shut off the DOD/AFM since I have owned the truck which is about 50,000 miles. I am noticing there is a lot of...
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