So I had the Flex at the dealership about a year ago for a few things, one being a ticking noise at start up. They said they couldn't replicate the noise (not sure how, it does it EVERY time...) and said everything looked in order.
Fast forward to today...the noise is still there, seems a bit louder now. It will tick 6-8 times. It sounds like a metal on metal tick, clank, etc...and no it is not the blend door click, that is a separate issue.

So a few weeks ago, it made the same noise when I was playing around. It did it at about 5000rpm and I backed out quickly! The sound is like a brass check valve closing if you have ever heard that, so my mind went towards possibly a WG issue? I could see something like that at full boost if the actuator is having issues, but not sure why I would hear it at startup.
Anyone heard/hear a noise with their car?