Hey Scotty,

I'm looking to see if anyone has experienced the same issue as me and has possibly figured out the cause/fix...
I have a 2017 f150 xlt 5.0L. 4x4. With alittle over 62k miles on it. When lightly and moderatly accelerating (both cold & warm) I experience a ticking/ chattering sound between 2,000 - 2,800 RPM. It doesnt make any ticking sounds at idol or when heavy on the throttle. Its only under light throttle when accelerating betweem 2k - 3k RPM. I also notice that if i put it in manual mode, and in any gear i can hold the throttle betweem 2k-3k to make the sound under light throttle. I believe I've ruled out having a loose heat shield. It sounds more like a valvetrain issue; phasers or VCT solenoid. I've only had the truck for a year and it's only so recently made this sound. I've researched tons of forums and it seems that no one has a solution and the dealer deems it "normal functioning sounds of the engine"... I also have a '14 f150 5.0 that doesn't experience that issue and all of my fleet f150s at work (same gen coyote as my '17) don't experience this sound either.
At every oil change, I run full synthetic 5w-20 & a premium filter every 3k-3500 miles.
Anyone have any idea of what the issue could be? Should I be concerned or just crank the radio and ignore it?

Thanks,

- Anthony