2015 5.7 Tundra CM

This is my very first Tundra, and loving it.
Truck runs smooth as can be, but I’ve a little bit of a, shudder, if you will, when I’m idling.

I never had a truck with this big of displacement and was wondering if it was normal for a big engine. At times I’ve wondered if maybe something having to do with the chain/belt but I don’t know much about car mechanics. Sometimes, not very often, an odd squeak come from around that area.

I’d hate to take it to the shop for The mechanic to tell me that it’s normal. I rather say my money since everything is so expensive right now…
Plus mods won’t pay for themselves.