Well, a couple thousand miles ago, I noticed a whining noise coming from my engine when it gets revved up a little bit. It seems like the sound has been there since new, but it got louder. It finally prompted me to take it in for timing belt change. I am awaiting diagnosis, but it's likely something like an idler pulley or bearing in the belt system. Please post your theories!
https://youtu.be/hfqutOduQGc
https://youtu.be/hfqutOduQGc