Servicing pulleys and serpentine belt

[HoosierJeeper]

Not sure I understand what you ask me to do.. what do you mean put stethoscope on it? while running? how?
I am positive its coming from the AC pulley/clutch - that area

That was my first guess when mine was making the noise, but then I put the stethoscope on the compressor and then the alternator, was much louder on the alternator.

 

[HerronScott]

Can you put a stethoscope on it and pin point it? Or like a long socket extension?

I always used a long screwdriver (12" or longer).

Scott

 

[mindbomb]

Clutch is working fine I am pretty positive is the AC pulley bearings.
I guess the process is quite the same.

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[mindbomb]

I think I'm gonna remove the belt again and try to spin every pulley to diagnose the noise 100%

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