A connecting rod wont "fall" in the engine. They will snap, usually because another part failed. (Piston seized, rod, main bearings seize). Once you replaced the crank sensor, the knock you describe, does it worsen when the engine heats up? Lucas as far as im concerned, is hyped up as a mechanic in a bottle. It wont fix anything. It can however prevent some damage. As long as it is added before any damage occurred. What engine is in this vehicle? Any extra info you have will further help the diag.
Tuesday, September 17th, 2013 AT 8:13 PM