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  1. Duramax Second Generation: 2004.5-2005 (LLY)
    Was running fine yesterday had plenty of power no loss of power shut off for couple hours started up to go home and truck didn’t have any power? hit the pedal to the floor just real luggish no power but on edge insight still building boost, checked all intercooler pipes and hoses everything is...
  2. Duramax Second Generation: 2004.5-2005 (LLY)
    So long story short I bought an 05 2500 with a screwed motor and bought an 04.5 LLY that was out of a C5500, swapped all necessary items and opted to stick with the 2500s injectors (new reman), wiring harness and other modules to ensure there wouldn’t be any issues. Now trying to get it to fire...