phils89sc
Registered User
This started sometime after I replaced the HG's. The engine will do it when it is cold, or after it has been sitting for a couple hours after being shut off. What it sounds like is like a hollow tap / knock, as if you were tapping a hammer on a piston. After the engine runs for a couple of minutes, not even to full warm up, the noise stops. It goes with engine RPM as well. I am kind of hoping it may be a lifter and nothing deeper.
Any opinions?
Any opinions?