My Chevy SIlverado 1500 (2013) just had pistons changed. Immediately after I left the service, the engine light came on. Now the service is telling me there is P0300 error message on and they don't know why..... I am trying to figure out what could have een done wrong during pistons change. Or if they missed any cylinder damage when they were changing pistons....

 

What the... This is a Nissan 350Z forum, not a Chevy Silverado forum. And although we could probably help you fix your problem, it would just be a waste of both our time.. Go here: http://www.silveradosierra.com/

 

Go to that site he posted above.im a member over there and they have great knowledge for this question.

And your engine is either not getting the proper spark, fuel or air. So look for vacuum leaks, bad or misinstalled injectors, or bad or misinstalled spark plugs and wires.

But again ask this on the Silverado forum. You'll get help MUCH faster.