08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

Turbo flutter!

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Old 07-23-2011, 08:29 PM
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Turbo flutter!

Out of no where yesterday i heard nasty compressor surge! after i turned it off and waited an hour it disappeared. now it sounds fine again? could extreme heat have something to do with the recirc valve getting stuck closed or is my turbo slowly warping??

Last edited by steviepc7; 07-23-2011 at 11:33 PM.
Old 07-23-2011, 08:35 PM
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I get a really wierd noise whenever im under boost (20-22psi) It sounds like cicadas. Is this similar to what yours is?
Old 07-23-2011, 08:40 PM
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Compressor surge happens at WOT when the turbo is pushing more air than it is capable of flowing.
Old 07-23-2011, 09:38 PM
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om talking about the flutter after you let off the throttle. sounded like a dieing pigeon
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