Thank you - definitely NOT mechanically inclined but I do have a friend who’s a mechanic - I’ll ask him to take a look - I appreciate all the suggestions!
Hi - I have had this problem as well. I just left Ford dealership and they told me that I have to replace the whole muffler and that due to mileage it is not covered under warranty. When I asked what the issue was, I was told it’s an internal failure - wondered if this was possibly a recall...