New Duramax issues?

[Ummduh]

There's no HPOP on a duramax engine, those were a powerstroke thing as they used high pressure engine oil to actuate the injectors.

Gotcha. Terminology mix up. The high pressure fuel pump then.

 

[TRINDU]

Gotcha. Terminology mix up. The high pressure fuel pump then.

So an injection pump failure.

I'm going to file this away as second hand internet folklore.

 

[Ummduh]

Eh, whatever. I'm not a diesel guy, I don't commit to memory every term.

He just got his truck back last week. It happened. We figure it got traded in by the previous owner because he knew the head gasket was gone.

Can't explain the fuel pump though. Good chance it was their screw up but we'll never know.