Squeak on liftoff from high boost

[jakub22]

I get this sound when lifting off from high boost ~15psi and more. I never noticed it before so I would say it's a new thing. Had the car at the dealership, they checked it, ran diagnostics, said they can't find anything wrong with it. Anyone of you ever experienced similar 'issue'? Car is bone stock. I suspect there could be small leak somewhere and sound is air escaping through there when the engine air intake closes.

 

[Carbon]

I have the exact same sound, also stock car. It's probably the sound of compressed air going through the recirculation valve back in the intake on liftoff. I would say it's normal.

 

[jakub22]

I have the exact same sound, also stock car. It's probably the sound of compressed air going through the recirculation valve back in the intake on liftoff. I would say it's normal.

Cheers, I think I can live with that, but still, I would swear it's a new sound, did not notice it for first ~30k km.