Hey all I’ve run into an issue I can’t quite figure out for sure. After a drive yesterday I noticed a squeal from rear of engine when I parked which I believe is the camshaft synchronizer. However this morning when I went to check it out nothing was happening so I let it warm a bit and gave it a rev, when I did I heard a single clunk sound from towards the engine. I left it for a while and the squeal is back after warming up but now I cannot get the clunk to happen again. I was thinking motor mounts before but can’t figure it out without it happening again