Strange noise engine of my Ford Galaxy

I recently purchased a used Ford Galaxy and I've noticed a strange noise coming from the engine. It's a low rumbling sound that occurs when the engine is idling. What could be causing this and should I be concerned?

It's possible that there could be an issue with your exhaust system. I recommend taking your Ford Galaxy to a trusted mechanic so they can inspect and address any potential issues.

I had a similar issue with my Ford Galaxy and it turned out to be a faulty fan belt. I suggest checking the fan belt and replacing it if necessary.