Hey guys, you may have seen my previous post about me fixing lifter tick. Now I have another noise coming from the engine of my m52. This time it almost sounds like a bolt or something is in the engine getting thrown around. When I rev it to about 2500 you will hear a loud screetch and then it also has a rough idle with some miss fires. At this point my first thought was I blew the engine after all of that other work I just finished doing to it. It ran great for such a long time. Just one cold start in the morning and all these noises came out of nowhere. I have really considered giving up on this thing at this point because it seems to give up on me. I noticed a few things when messing around trying to figure out what's wrong with this thing. The oil cap was insanely tight I could not get it off at all. So I pulled the dip stick and then it came right out. Also I noticed the clunking noise is very intermittent it only happens sometimes unlike rod knock and lifter tick which will occur forever. After doing some research I found out that the pcv system could be the problem I did replace the pcv system when doing all the head work but I did replace it with a cheap aftermarket solution. Could that be the problem? Let me know what you guys think.
