What causes timing chain noise after an oil change?

[StPaul]

Timing chain noise can be caused by elongation of the timing chain, abnormal timing sprockets, severe wear of the guide chain plate, or lack of tension in the chain tensioner. Timely replacement of the timing chain is recommended. Introduction to Timing Belts: The timing belt is a crucial component of the engine's valve system. It connects to the crankshaft and ensures accurate intake and exhaust timing through a specific transmission ratio. Function of Timing Belts: The timing belt synchronizes the piston stroke, valve opening and closing, and ignition sequence while the engine is running. As a consumable part, if the timing belt breaks, the camshaft will not operate in sync, potentially causing severe damage due to valve and piston collision. Therefore, it is essential to replace the timing belt according to the manufacturer's specified mileage or time interval.