So last night I finished replacing the last of my return lines with good doorman lines, the badger diesel version I purchased were junk and wasted a lot of time.. never again! Seeing that it idles normally now I can hear a rattle from the front of the engine, I laid under the truck for a while trying to see where it was located and I deduced that it has to be my timing chain, one thing I noticed that the engine speed would change ever so slightly as I could hear the rattle. It is somewhat inconsistent and may not be possible to catch on video because of the normal diesel clatter. To me it seems rather obvious that it's likely a chain that is stretched?? By the way the water pump is new..