squeaky noise when AC turned on + engine revving

[andylawcc]

so I start to notice my car will emit a squeaky noise after I turn on the AC when the car has just started. The noise gets louder as I rev the engine higher. After a short while, the noise will go away. So some sort of belt need to be changed or lubed?

 

[JulesMaximus]

You don't lube belts. Probably needs to be adjusted or replaced.

 

[dbcooper1]

A/C drive belt or compressor clutch.

 

[ballmode]

this happened to my WRX last summer. My A/C pulley wasn't spinning like it should so the belt was squealing/slipping and the bearings were going out.

A simple 15 dollar part and about an hour replacing it was all it took. Not sure what car you got

 

[ballmode]

https://www.youtube.com/watch?v=Jbz1yP_YojU

this is how mine was

 

[andylawcc]

mine was "squeakier"... I will un-dust my gopro and go record it.

 

[Wingznut]

Has to be the belt needing replacement. Possibly tightened, if that's an option. But if the belt is old, you should just replace it.

The A/C clutch issue would not allow the noise to go away after a short while.

 

[BUTCH1]

so I start to notice my car will emit a squeaky noise after I turn on the AC when the car has just started. The noise gets louder as I rev the engine higher. After a short while, the noise will go away. So some sort of belt need to be changed or lubed?

Yes, apply a generous slathering of WD-40 over everything, belt, pulley's, rollers, this will quiet thing down quickly!..No, JK, probably just need a new serp. belt, what's the mileage on the car?, In a LOL related story I used to work for a TV repair shop and a guy had a VHS that was squeaking and he actually pushed in the door of the unit and blasted "half a can or so" in his words, into it then brought it in for service when it wouldn't work. This was back in the early '80's when a decent VCR was still around $400..