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2001 2500HD Broken Rod

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Ok so a while back I posted about my 2500HD running rough, I changed the Injectors  (2 weren’t firing) and then it ran  as bad if not worse and started knocking.   


Well today day I finally got around to pulling the engine apart to find #3 rod broke in half and into pieces.   Anyone have any ideas  on what happened?

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I have owned the truck since it has 15000 miles it was a GM program vehicle.   It now has 130,000.    


I currently can’t prove this but my brother and I both believe the injector was bad and pumped the cylinder full of fuel and hydrolocked the engine causing the rod to break.  

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