Wondering if anyone knows what this rattle sound is on my STX 2024 4x4 ~7500 miles. Happens when going down hills primarily 25-27 mph and looks to be in 4th gear with 1.5 RPM. Bringing it in for service soon and wanted to have an educated guess what this could be.

Posted this in other forums as well and havent gotten feedback. Here is a link to the video showing the sound coming in while driving.
https://www.f150gen14.com/forum/data...a59dd381c9.mp4

Thanks!

 

Not hearing any rattle.

 

I think I'm hearing it, kinda like a tiny air hammer or impact wrench rattle/noise? Dang, that could be lots of things. Any codes?

Can you move your camera around and see if you can narrow down the location of the noise better?

 

Happens around the 2-3 second mark. Seems to only happen on downhills where I am kinda staying around 4th gear it looks like. Making an appt to the shop to see what it could be.

 

That air brake like blow off sound? That's easy to hear. No clue.