High Pitch Whistle?

[Rex4Lif3]

When i press the pedal down and start to get boost i get a high pitched whistle noise that gets louder the

more i press down the gas pedal. Soon as i let up it goes away. the sound is like a police whistle being

blown as hard as you can.

i have checked all hoses they look good

 

[Nate]

Boost leak. Check your hoses again....

 

[2point5RS_Dan]

I thought this thread was going to be about deer whistles....

No, I'm not Kristof, I'm literate

vvvv

 

[MikeD]

Don't you mean DEAR whistles?

 

[Rex4Lif3]

im gonna go at it with some soapy water in the morning to make double sure

 

[IBratmanI]

Have you done anything under the hood lately?? If so, start there first. Maybe there is a loose vacuum hose?

 

[EddieHunt05]

Small Asian in the trunk?

 

[Mark]

check the clamps connecting to your intercooler, especially under it. lot of boost going through there.

 

[EvilAsPie]

I had a high pitch whistle under boost in my legacy turbo, kinda sounded like normal turbo whine but much higher pitched. It didn't affect performance at first, but eventually did.

Turned out to be a crack in the Up Pipe just below the turbo.

 

[Rex4Lif3]

all hoses and clamps are good gona try the up pipe

 

[EvilAsPie]

it was not easy to find with the heat shields and all. I was able to see blackness on the bottom of the flange and could feel air moving it i got under and stuck my arm up while it was running.