So I noticed a sound coming from the engine. I can't tell if it is loose valves or the cam tensioner getting close the the end of its useful life. I was hoping a more experienced ear could enlighten me. I'm pretty convinced it's valves, as the sound seems to be coming more from the top.  But I wanted to insure this before I made my own conclusion as I'm planning on taking a short trip this weekend assuming the tensioner isn't on its way out. Literally.

Anyways, take a listen to the following video and tell me what you think. My current mileage is 12,3XX.

http://youtu.be/D0zEhJdQUAA