2015 Ford F-150 - Clicks

clicking sound on acceleration, and warmup, then ok after that

Is the engine full of oil? Is it full of the correct oil, as listed in the owner’s manual?

2011-2015 Ford F-150 3.5L Ecoboost Engine Startup Rattle New Fix! - YouTube

I am beginning to think that you work for You Tube .

a little research, copy and paste is a wonderful thing. LOL
besides sometimes it is easier for someone to watch a video than me trying to explain it in a post.