I did the oil cooler replacement, but, one problem into the next. I did the replacement, but now, there’s an odd knocking coming from my Jeep, engine compartment. Went to my guy, trusted on a complete level, and they reviewed the camshafts, replaced the rocker arms and and the push-rods(or equivalent), even replaced the connecting rod bearings. She runs fine, but the knocking happens at startup, then calms down a bit when the engine warms up. After that, the knocking picks up at acceleration, seeming to die down after going 25 mph, but, it persists. Anyone have any ideas, things to consider from here?