What the heck is this noise? (videos)

[Shotgun]

I had the same noise happen this morning on startup. MY23 gasser, 5500 miles. The noise went away after about 6 or 7 minutes (the time it took to drive around the block and park in the driveway).

For those of you that have had this, what was it and how did you diagnose the issue?

Same here. Noise seems to go away after everything is warmed up. Any updates on yours?

 

[trailguy]

I am having the same noise, same pattern: goes away after engine is warm. anyone have info on root cause?