Whirring noise, idk what it is Options

[pepsiman]

Hey i jsut had some work done on my car by toyota (boo me, me and dad didnt feel like tackling it)
It had a large oil leak and they said it was at the oil pump. They also checked the timing belt to make sure it hadnt got oil on it. Drove my car home and everything is fine. Later that night i am driving and it had a strange whirring noise. Its coming from the timing belt side of the engine, and it increases when my rpms do. The engine runs great like before and drives like it always did. Just with a noticeable noise. we loosed the serpentine belts some and that didnt help... I was thinking maybe the power steering belt, i have checked it yet. I just hope its nothing to do with the timing belt that was a big job (for me and dad at least) so what could it be? what could i check?

This post has been edited by pepsiman: Oct 30, 2008 - 9:01 PM

[94STJR]

now i had a whining noise coming from that side of my engine bay, one day i popped the hood (while the engine was running) to listen more closely to where it was coming from. i thought it was coming from the powersteering also but turns out it was the alternator whining, so it might be the bearings in my alternator going bad. and you may have the same problem.
while the engine is runing reach over to the trottle cable and rev the engine a little, the whining from the alternator should increase.

let me know if this helps...