Rattle from engine compartment

[Texas Bohunk]

Noticed a rattle ( for lack of a better description) coming from the engine compartment while running between 75 and 80. Sounds like maybe an injector? Can hear over the radio. No noticeable loss in power. Has anyone else had this problem?

Going to try to get it in the shop next week.



















Truck is a 2013 2500 Crew Cab with automatic and 3. 42 gears