What is the most common issue with the Kia Sportage's engine?

I've noticed that my Kia Sportage's engine has been making a strange noise lately. What could be causing this and how can I fix it?

The most common issue with the Kia Sportage's engine is a faulty timing chain tensioner. This can cause a loud rattling noise and may even lead to engine failure if not addressed.

It's possible that the noise you're hearing is caused by a loose or damaged serpentine belt. This is a relatively easy and inexpensive fix, so it's worth checking out first.

Another common issue with the Kia Sportage's engine is a faulty PCV valve. This can cause rough idling and poor engine performance. It's a simple fix, but should be done by a professional.