Hello,

I have a 2017 F-150 3.5 ecoboost with 99k miles and have just noticed this one second rattle on cold start. Just asking if anyone can verify this is the cam phaser rattle I should worry about.

 

Here is an audio sample from another post https://youtu.be/Lo9TwXOfWiA

 

Thanks for the example. That's what I thought and mine sounds about the same. Guess I'm going to the dealer.

 

Yeah you have it, it’s not that bad but at least in my case it rapidly got a lot worse once it started. Currently waiting for parts for my truck still. They’re so backed up with all the cam phaser repairs it took two weeks just to get me in for the diagnostic needed to submit for Ford approval and then it’s another three weeks or so for parts. Major pain in the behind since even the first visit required keeping the truck for a day to get a good rattle.