I’m sure this is posted somewhere but have been unable to find it. For about a week, in low gears (usually 4th to 6th), my truck has done this rattle when accelerating and will actually get louder if I take my foot off the gas during the rattle. I am now having a hard time getting speed when going uphill, my 4x4 sporadically will not come on in 4L or 4H and sometimes when the rattle happens I lose pro power onboard. Today with the rattle my check engine light came on. 21 ecoboost with 66k miles.

https://www.reddit.com/r/f150/s/u2WlHJoPdH

 

You should post a YouTube video and link that. Most don’t want to have to download anything.

 

I added a Reddit link, I don’t have YouTube

 

Epic

 

the noise or the comment?

 

You’re going to want to upload it to YouTube if you want people to check the sound.