bsbeedub wrote:
OP again. They did do leak tests and compression tests and nothing showed up.
Bovine excrement. Bent valves don't seal. Bent valves get bent because there was interference with something...….like a piston. If the guide is a little tight the valve will stick open. When this happens the piston will come up and whack it. When this happens the valve bends. When this happens the valve does not seal and you get a misfire code.
Next time you're back at the dealer get real close to the service writers face; talk real slow and real quiet and ask: "how does a bent valve seal and not show up in a compression test or leak down test?"
See what kind of bovine excrement he tells you.