2003 7.3l excursion. Originally hard start, rough idle. Replaced glow plugs & harness, IDM, starter, batteries, & now all injectors. It is difficult to turn over by hand. When bumped it made a loud sound after replacement of the injectors. Called mechanic. He said it sounds like it is hydrolocked. If I pull all of the glow plugs out of one side and (then the other if needed) and get rid of any access liquid, is there anything else that I have to do to get it un- hydrolocked? Or does the access liquid in the glow plugs cause this problem? Sorry if I sound stupid, this is my 1st diesel.