Diagnosing Noise From FZJ80

[Anarchy]

Hopefully the attached link works, it depicts what can be described as a whining noise? Could be the alternator?

Video good for 24 hrs:

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[Broski]

Pull the idler pulley and see if the noise goes away.

 

[robnicko]

cant play the video for some reason but to name a few culprits

ribbed fan belts
idler pulleys as per above
A/C compressor bearing - engage AC and see if it goes away
power steering pump