Strange clicking/ticking/squeek

[vannaksao]

Can't figure out what it is. Replaced the idler pulley (alternator side), even though this didn't fix the problem, the pathy runs much much smoother, quieter, and has a much healthier idle.

I held a screw driver to my ear, and then to most of the components to try and find that squeek. I don't know how to describe it, it's like the sound of fast squeek- kinda like when you hear basketball shoes scuffing on the court. It's coming from the right side (if you're sitting in the car looking forward), on the alternator side.

1. My belts are new
2. replaced idler pulley on alt side. (Did not re-install the dust cover)

Maybe I should check the crank pulleys? Alternator Pulley?

I've attached the video, you can hear the sound...

http://www.flickr.com/photos/56891815@N04/5249891796/

[ARKQX33V6]

Vid moves around too much for a sense of direction, here are my guesses!
Vacuum assisted item
Idle air
PVC blocked up

Use a stethoscope to pin point