John Mark Dongon
Proven Member
- 94
- 5
- Feb 7, 2019
-
Stockton,
California
It only happens when I step on the throttle as the engine runs harder, there's a single loud metal thump, similar to a hammer hitting the oil pan, from to under the engine. I doubt it's a rod knock cause its not constant, there's about a 3 second gap between each knock and as the engine slows down, the knock gaps get longer until it eventually stops knocking when the engine reaches idle.