Why is my Kia Sportage's engine revving by itself?

I noticed that my Kia Sportage's engine is sometimes revving by itself while I'm driving. What could be causing this and how do I fix it?

This could be due to a faulty idle control valve or a dirty throttle body. I would recommend taking your Kia Sportage to a mechanic to have them inspect and clean these components.

Another possible cause could be a vacuum leak. I suggest checking for any cracked or disconnected vacuum hoses and repairing them if necessary.

If all else fails, it could be an issue with the electronic throttle body control system. In this case, you will need to bring your Kia Sportage to a dealership for diagnosis and potential replacement.