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  1. 04.5-05 LLY Duramax Powertrain
    My 2004.5 LLY has been a great truck for the last 104k, hopefully this is a quick fix! I have done all the maintenance and work to date, but I wanted to find out if I am on the right track for this issue? With the exception of an LBZ mouthpiece and Banks PowerPDA the truck is stock. When this...