Why does my Kia Sorento have a rough idle?

I recently noticed that my Kia Sorento has been experiencing a rough idle. The engine seems to be shaking and there is also a noticeable decrease in fuel efficiency. What could be causing this issue and how can I fix it?

Your spark plugs may need to be replaced. Over time, they can become worn and cause a rough idle. I recommend getting them checked by a mechanic and replaced if necessary.

Another possible cause could be a clogged air filter. A dirty air filter can restrict the air flow to the engine, leading to a rough idle. Consider replacing the air filter and see if it improves the issue.

If the rough idle is accompanied by a check engine light, it could indicate a problem with the engine sensors. I suggest taking your car to a mechanic for a diagnostic test.