 probably going to pull off the driver's valve cover is where i'm going to start 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 fails on these and you'll see one rocker's not moving as far as the next one and if that's the case you want to address it now before it gets worse because if it's not too bad you might be able to tear it down and repair it if it gets too bad it's going to need an engine when there's a lot of metal floating through that engine