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  1. HANLINES

    Proud new owner of a 2021 1500 RST Duramax 3.0 Black Widow 15,000 miles

    Hello all, Just wanted to introduce myself on this fourm. I will be spending a lot of time here to learn from everyone else and to share in my experience over the years ahead. I'm no stranger to diesels as my other vehicle is a 2010 BMW X35d. It is the M57 engine, turbocharged inline six...
  2. HANLINES

    2021 Silverado squealing sound

    I just got a 2021 1500 3.0 Duramax with 15k on it. It is the Black Widow. I'm going to make a post about this strange squeal sound I hear under medium acceleration. Sounds like a balloon letting the air out while pinching the flap. IDK, I have had many turbos and this is not the turbo whistle...
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