Oldsmobile Aurora knocking noise after running out of gas, possibly needing oil pump replacement and piston ring test on Oldsmobile Aurora

Some Oldsmobile Aurora owners report experiencing knocking noises after running out of gas, which may indicate several underlying issues. These noises can stem from malfunctions within the engine compartment, often due to inadequate lubrication from low oil levels, leading to increased friction and heat. If the knocking persists, it may suggest a deeper problem, potentially necessitating a manual oil pressure test to check for a clogged oil pump pickup screen. Additionally, engine knocking can be caused by the pistons moving in the cylinders, as well as issues such as clogged fuel injectors, a faulty O2 sensor, vacuum leaks, or a malfunctioning fuel pump. Owners are advised to inspect the engine's oil pressure, check for overheating signs, and test engine compression to assess overall engine health and effectively address these concerns.