Why does my Ford Focus make rattling noises when I'm idling?

I recently purchased a used Ford Focus and I've noticed that it makes a strange rattling noise when I'm idling. What could be the cause of this? Should I be concerned?

Hi Samantha, it's normal for a car to make a rattling noise when idling. However, if the noise is excessive or changes in pitch, it could indicate an issue with the engine or exhaust system. I recommend taking your car to a mechanic for a thorough inspection to determine the cause of the rattling.

I had the same issue with my Ford Focus and it turned out to be a loose heat shield. My mechanic tightened it and the rattling noise went away. It's a common issue with Ford Focus cars, so it's worth getting it checked out.

I would recommend checking your oil levels and also inspecting the timing belt for any wear and tear. These could also be potential causes for the rattling noise.