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  1. Question: 6.5 Issues after upgrades - videos in post

    6.5L Diesel Engine
    Hello y'all! So I'm perplexed - when I got my K2500 with 200.000 miles on it, it had several different types of engine knocks, but it also had this kind of "intermittent" harsher knock. I believe the knock to come from the front part of the engine, towards the radiator fan and pulley systems...
  2. LML: Yellow Fluid Leak???

    Duramax Fifth Generation: 2011-2016 (LML)
    2012 LML - Any ideas on what this leak could be? Fluid is brownish in color to the eye. Wiped it clean with a napkin and it’s yellow when wiped off. It’s completely odorless and oily to the touch. Hasn’t dripped too bad overnight but definitely enough to notice on some cardboard, have found...
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