Why is my Kia Rio's engine producing strange noises?

I have noticed that my Kia Rio's engine has been making unusual noises lately. It almost sounds like a knocking or clicking sound. What could be the cause of this and how can I fix it?

It is possible that the noise is coming from the valves in your engine. This could be due to wear and tear or lack of proper maintenance. I would recommend taking your car to a mechanic and having them check the valves and potentially replace them if necessary.

The noise could also be caused by a malfunctioning belt or pulley. I would suggest taking your car to a mechanic and having them inspect these components and replace them if needed.

Another potential cause could be a problem with the timing chain. This is a crucial component for the engine's operation and if it is worn or damaged, it could cause strange noises. I would advise having a mechanic check the timing chain and replace it if needed.