Annoying squeak!!

There seems to be a squeaking noise coming from my engine. It sounds kinda like when your belt is worn out but it's not the belt. I took it off and turned it on for a sec to see if it would go away but no. If I press the gas while it idles or I drive the squeak seems to go along with the rotation. It starts to squeak even more. If anybody knows what it might be I'd appreciate it if you can let me know. I wanna get it taken care of but talk care of right.

bearings in alt or waterpump? got a stetchscope(sp?)?

I took the belt off so it couldn't of been. Opened it up ran it and it seems to be coming from where the oil pump is. I swapped it out and it still does it

What about a dry rocker arm thats not oiling?

Maybe the crank pulley is loose. . . . That would definitely squeak.