Should there be any ticking noises?
The noise I hear sounds like a gasoline engine low on oil.
My oil level is in the safe band.
Just changed w/ zero problems around Thanksgiving time, Valvoline/Cummins Premium Blue.
I don't think that this noise happened when I got the truck.
BTW, I got the truck in Oct. w/ 9421 miles, it now has 144xx miles.