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hey guys today i was driving & noticed this sound coming on... , i checked everything today, and now my car is making a noise, a sqeeling noise like a supercharger? Could it really be my turbo gone? bcos i tried driving with my stock blow off valve blocked and it did no noise? but then i put my stock Blow off Valve on the noise came back... im reading my boost gauge and its still holding boost, no smoke white smoke is coming out of the exhaust... Could it be shaft play?

My current mods are a Pod Filter, Turboback exhaust with high flow cat and a TurboTech boost controller....

Thanks guys

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https://www.sau.com.au/forums/topic/236210-turbo-gone-r33-series-ii/
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1. So it makes a squeeling noise on boost when the stock BOV is connected properly.

2. It doesn't make this noise when the stock BOV is blocked? (please explain how you blocked the BOV)

Doesn't sound like turbo, sounds like BOV leak issue. But I'm not speaking from experience.

Yeh, when my BOV is connected, it does a high pitched sqeeling noise like a supercharger... BUt when i block it with a plate.. ( for it to DOSE) it doesnt do ne high pichted noise... for some reason.. and yeh i brought a 2nd hand r33 bov today and change em around... but it still did the sound...

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