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Originally Posted by Bill UK
A whistling noise from a MK III Turbo normally indicates the four mounting nuts holding it on to the exhaust manifold are loose, allowing combustion gases to escape via the turbo gasket. This is quite common if the top or bottom turbo support brackets are missing. But from the year you have stated you are referring to the MK IV Supra. Re Post your question in the MIV 1993-1998 section you may have better luck with an answer.
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There should be like a whistle coming from the turbo when spooling up since the the turbine is spinning at a hight rate. Isnt there?
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MK3, Auto, Turbo.
Last edited by redmaro; 01-20-2007 at 10:45 PM.
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