Over the weekend I noticed a new noise coming from underneath my car. I guess at the location is the passenger side around the area where the exhaust comes down. Sounds like a hallow shaking noise. It’s not very loud. Car still runs great and shifts good. I’ve uploaded a video.

 

Not an answer but I’ve had the same noise for a couple months now. Haven’t been able to figure
out what it is. Mine kinda seems like it is coming from the torque converter area.

When I changed my starter, a bolt the same size as a torque converter to flexplate bolt fell out but I can’t for the life of me figure out where it goes/came from. I have all my bolts still in place. Unsure if it’s related.

Hoping someone has an answer! If not, might be worth reposting over in tech/general engine.