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The mkiv Supra Owners Club

Moaning Supra!


Swampy442
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Its the reed valve in the no2 turbo pre spool valve :) It lifts ever so slightly and causes that humming sound on idle. Performs perfectly when driving just annoying on cold idle

 

[ATTACH=CONFIG]231402[/ATTACH]

 

That's interesting

 

Do you think it would make the same sound under load when driving ? think i have heard this once or twice when driving on mine.. only once in a blue moon though

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