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  1. 11-16 LML Performance Parts Discussion
    hello, this is my first post, I can’t seem to find a good reason for my issues with google so I thought I would try here. I have a 2011 gmc sierra 2500 which the 6.6 (obviously 😂) and I noticed that my coolant tank always seems low when engine is hot, and returns back to normal when it cools...
  2. General Discussion
    So my lly has been giving me a low coolant light and water in fuel light the last week or two. Coolant has been coming out the top of my expansion tank and my top radiator hose is a bit stiff in the morning. Along with pressure in the expansion tank in the morning as well. Typically I’d assume...
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