Help identifying sound coming from engine bay

[Oddboy]

I'm having all sorts of problems today...

Please see attached - I'm trying to identify the issue that's causing a squeaking / chirping sound out of my engine bay. It's more noticeable at idle, but also occurs at speed. It seemed to go away after idling for 15 minutes straight, but has persisted on multiple start-ups. Is it the radiator fan?

 

[ftillier]

with the engine off, does the cooling fan spin freely, or does it rub on the shroud? The other thing it could be is one of the idler pulleys for the serpentine belt going bad. Release the belt, and then see if all pulley spin freely.

 

[itsaguything]

get a stethoscope around those pulleys and tensioner.

 

[powershift]

It sounds like a bad bearing to me.

 

[Rover Range]

With the engine running, pour water on the belt. See if noise goes away. If it does, belt issues.