Engine bay - What's causing this sound

[Mp64]

https://streamable.com/y575w6

VE SS L77, sounds like one of the belts but doesn't seem to be coming from that area? Noticed it after a short drive last night.

It kept coming and going lasting about 30secs to a minute

 

[Fu Manchu]

One of the pulleys.

 

[glennho]

could be a pulley bearing. Try some talc powder on the belt to see if it stops the noise. If not then look at the tensioner and idler pulleys

 

[VTS5]

Sounds lik a dry bearing noise.
Could be Tensioner pulley,alt. bearing etc.