Hey guys I’m new to this forum and I joined because I’m trying to find some help for identifying a sound coming from my car I’m not sure if it’s an exhaust leak, timing chain, or something else it sounds like a rapid tap with rpm levels inside my dash but when I open up the hood I can’t hear it from the outside… any help would be appreciated!

here is a video because it was too large to post from my phone to here.
https://youtube.com/shorts/ZIgCG7PvTSw?si=z4fwS2OsoTiEv0cG

 

welcome