Just resealed the engine timing cover on 2006 Freightliner m2 box truck with CAT engine. A day later the truck overheated on its first run, diagnostic says coolant in air brake system due to bad air compressor. Needs air compressor and pressure regulator and flush air brake lines and system. my question is, is that something that could be a result of the first repair due to what was pulled off to access the engine timing cover then put back together, possibly incorrectly? Or is this just bad luck and unrelated?