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turbo sounds like air
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  1. 9-3 Sedan, Cabrio '04+, Combi, 9-3X Workshop
    I have a 2006 2.0T 133,000 miles. New evap purge valve, and boost pressure control valve. Last night I drove to a city about 50 miles away. No problems on the way down but as I entered the freeway on the drive home I noticed that that starting in 4th gear the turbo sounded as if air was blowing...
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