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

I recently purchased a Kia Rio and have noticed that the engine is making some strange noises. It's not a constant noise, but it happens intermittently while driving. It doesn't seem to affect the performance of the car, but I'm worried it might be a sign of a bigger issue. Can anyone provide some insight into what might be causing this? Thank you!

It's possible that the noise is coming from a loose belt. I would recommend getting it checked by a mechanic to be safe.

I had a similar issue with my Rio and it turned out to be an issue with the spark plugs. It's a relatively easy and inexpensive fix, so I would suggest starting there.

I've owned a Rio for several years and have never experienced this issue. It could be related to the exhaust system, which can be a bit finicky on these cars. I would suggest taking it to a trusted mechanic for a diagnosis.