What causes a rough idle in a Kia Sportage?

I recently started experiencing a rough idle in my Kia Sportage. It shakes and stutters when idling, making me worried that something is wrong with my engine. What could be causing this issue?

One possible cause of a rough idle in a Kia Sportage could be a dirty or faulty idle air control valve. This valve regulates the amount of air entering the engine at idle, and if it becomes clogged or malfunctions, it can cause the engine to idle erratically.

Another potential cause of a rough idle in a Kia Sportage could be a vacuum leak. This occurs when there is an unintentional gap or crack in the engine's vacuum system, causing air to enter in places it shouldn't. This can cause the engine to run rough or even stall.

It's also possible that the problem is with the spark plugs or ignition system. If they are worn or dirty, it can affect the engine's ability to idle smoothly. Make sure to regularly check and replace spark plugs as needed.

I recommend taking your Kia Sportage to a trusted mechanic for a diagnostic test. They will be able to pinpoint the exact cause of the rough idle and provide a solution for fixing it.