Chrysler 300 motor noise issue after motor change on Chrysler 300

Some Chrysler 300 owners report experiencing various motor noise issues after a motor change, including lifter noise at idle, which may indicate oil starvation to the lifters in the cylinder heads. Additionally, some owners notice a whining noise that changes with engine speed, potentially caused by an accessory bolted to the engine. A grinding noise during startup is another concern, which could stem from damaged teeth on the flywheel leading to metal-on-metal contact between the starter motor's pinion gear and the flywheel. Furthermore, a light knocking or ticking noise that increases with RPM may suggest underlying engine problems. To address these issues, it is crucial for owners to ensure proper lubrication and oil levels, check engine accessories, inspect the flywheel for damage, and investigate engine components for potential problems. If these noises persist or worsen, consulting a professional mechanic for a thorough inspection is advisable.