Originally Posted by TireIron
I would suggest bringing it back in to them, but seeing as this is the 3rd time with the same issue demand they replace the engine with a new shortblock and not just another repair of the issue. They have the previous paperwork proving what has been done and that it obviously is not working and you don't want them to try it again to have the same thing happen. State that there obviously is either something wrong with the block causing the issue, or that having the damaged internals has since caused damage to it and you want a new one.
That would be great if they wouldn't just put the same junk cast piston motot back in again.