 camshaft and issues on these, you know, lifter issues, things like that. If it's continuous and it's pretty noisy and it's been run like an hour already and it's still doing it, I'm probably going to pull off. It'll be the driver's valve cover is where I'm going to start. And I'm going to start the engine up and I'm going to watch the rockers. And it seems like the second cylinder back from the front on the driver's side is the one that