Diesel Tech / How-To No More Blown Boots: Merchant Automotive’s LML Duramax PCV Reroute Kit A major drawback with PCV systems, especially in turbo diesel engines like the 2011 and newer LML Duramax engines, is that the hot crankcase gasses… Chris TobinandSurajpal Singh BishtJanuary 28, 2016No comments2 minute read