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strange turbo whistle from drivers side

2600 Views 7 Replies 6 Participants Last post by  djcheez, 
djcheez
replaced head gasket a few months ago and changed from ATT tune to non turbo tune. since then i have noticed a turbo whistling sound on the drivers side while drivng. It always starts at 7psi. To me it sounds like a vaccum leak that is somehow connected to the turbo, it sounds like its coming from a very small area on the drivers side. The sound increase and decreases as boost goes up and down beginning at 7 psi

Any ideas? thanks
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M
Did you have the brake booster leak?
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