Discussion Starter · #1 ·
Good evening everyone. I just got back from the local Chevrolet dealer and I got to see an LBZ that was being replaced. This engine only has 7k on it and it had a glow plug meltdown. Evidently the customer waited too long to get in for the re-flash and the damage had been done. It is quite obvious that a piece of the glow entered the combustion chamber and took out the piston and a couple of valves and valve seats. In speaking with the serveice manager, I guess GM is very surprised this happened and they want the PCM out of the truck to look for evidence of tuning on it. GM is putting a complete engine in , but I think you could get away with a piston and some head work. The service manager really pushed them for a complete engine. He said they seamed a little nervous about the amount of damage. So, how much evidence is left behind in the PCM if it has been tuned?I have heard some people say there is none, but given that GM wants it back makes me wonder. Just curious what you guys think.