Quote: So basicaly the valves were being held open and it didn't show on the compression test because you did'nt do a leakdown?
Not necessarily, without enough oil pressure the hydraulic lifters could be collapse and not show because they did not pump up enough with just cranking. But with the motor running and the lifters pumped up the valves could not close.
Allen
Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first.
Life was a little easier when I was just a wrench.
