High frequency noise in Nissan Sentra B13

Good afternoon,

my question is as follows, I want to know if it is possible that the chain of time, the tensioner patin or an element generates some type of noise that indicates the need to change the chain and its kit, as a high frequency noise.
Because I have the doubt, if it is a time chain, adjustment of cam tree trees (calibrating sheets in escape and admission) or if it is simply any external pulley that presents any damage.
I can't identify the problem of the car. Eye: I already changed the water pump that I was fossing.
Greetings

The chain if it generates a noise that is like a metallic blow is very similar to the vavlva blow is usually because of the skates or the tensioners of the chain, not of itself.