Can you please give specifics regarding your “piece of crap” designation. Curious as to your personal experiences. Thanks.I am a GM diesel tech. Engineering is still working on a fix for this. It has to due with a bad CAM sensor signal being received by ECM on crank. Turn key off for a minute and retry it will usually start.
SO far I had one I replacedthe ECM on, I'm currently shimming the cam sensor on one that is supposed to fix this issue..... we shall see! TSB PIP5806D addresses this issue.
Personally, as a tech..... this engine is a piece of crap! miserable to work on! We can't even order new trucks with this engine option right now, GM stopped build the engine!