Noisy motor, whats wrong here (video included)

[Blitzkrieg Bob]

is the a/c compressor.

If it is a suspect of the noise...just dis-com-booberate the belt and see if the noise goes away.

If it does, then your a/c compressor clutch or compressor is bad.

Drop $1000 at the a/c shop and pass go.

Check out Harbor Freight for a mechanic's stethoscope, they have them cheap and a scope is great for finding the source of a scary sound.

[niall]

a 4 foot screwdriver is my stethescope

[Blitzkrieg Bob]

I feel so inadequate now, with my little Craftsman stuff.