2017 F150 5.0 2W drive SCREW......Lately, I have noticed a very brief noise when I accelerate. It reminds me of the noise that plumbing can sometimes make (hammering). It happens when I'm moving 40+ mph and accelerate to pass (or get the hell out of the way). I hear it just after I hit the gas, but just before the RPMs increase which makes me think its fuel system related. Anybody else experience this?

 

Loose clamp perhaps? Check the clamp on the crossover pipe. Tends to break and rattle. Throw a hose clamp around it and tighten it nice and snug.