Engine rattle.

[lead18]

I’ve been chasing a rattle for a few weeks now and I can’t seem to find where it’s coming from. It only happens when the engine is cold and the rattle increases with RPMs(typically lower RPM range. I’ve had the cams replaced with the new design back in may. Took the truck to Ford they had it for a week said they thought it was the cam solenoids and replaced them but the rattle is still there. I don’t think it’s wastegate rattle as I’ve tried the spring trick and the noise is still there. 2018 75k miles Please help!
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[GCATX]

First guess, exhaust leak if the noise goes away when engine is warmed up. Maybe @FordTechOne can help?

 

[lead18]

Been thinking maybe that or something internal with the turbos

 

[poopy]

OP did you ever figure it out, mine makes a similar noise.