Why is my Ford Focus making a weird noise while idling?

I recently purchased a Ford Focus and have noticed that it makes a strange noise while idling. It almost sounds like a rattling or clicking noise. Should I be concerned about this? What could be causing it and how can I fix it?

It's possible that the noise is coming from the engine. I suggest getting it checked by a mechanic to be safe.

Sometimes, a loose or damaged exhaust pipe can cause strange noises in a car. Have a mechanic check your exhaust system.

It could also be an issue with the transmission. If the noise changes when you shift gears, it's worth getting it looked at.