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Possible Vacumm Leak

berzerkled

By berzerkled,
in Engines & Forced Induction

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berzerkled Contributor

berzerkled

Posted
Posted

My R32 GTR seems to have some sort of vacumm leak, it's very spiratic, symptoms are:

- when starting the car when it's cold it will start making a high pitched noise, i can stop it by blipping the throttle

- after i giver a little on the highway it makes the same noise and i can again stop it by blipping the throttle

- when i'm anywhere above 0 boost you can hear a whirring noise which I never heard when I first got the car. It's not your normal turbo spool noise, it's much louder. I've even gotten some comments from people driving next to me thinking I have a huge single turboed car. Although it's not nearly as 'high-pitched' like as the 2 points above.

I'm not sure if it's the turbo or something to do with the engine, because you can hear it when I'm not boosting but then it sounds not nearly as bad when I'm on boost. Very confused here, any help would be great!

Thanks.

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rukus Grand Master

rukus

Posted
Posted

i get a high pitch whistle sound like that.. it's actually coming from my blow off valve.. i dont think it's anything to be worried about

that whirring sound whilst coming on boost could be ur boost controller.. my avcr makes a whirring sound everytime i hit boost

R33S2 Grand Master

R33S2

Posted
Posted

are you sure its not one of your belts, they can squeel when worn, one way of checking this is to hold a bar of soap against a belt while running (its bloody dangerous) and if the noise stops its time to change it.

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