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Whistling noise when cold

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Old Feb 9, 2009 | 03:11 PM
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Default Whistling noise when cold
Have an 02 Coup, Zip tie mod up front, GHL cat backs in in the rear. No other drive train mods. When I first start, when it is cold I get a whistling sound from up front that goes away within about 30 seconds. Sounds like a bearing to me. It goes away so quick I haven't isolated it yet. Any thoughts.
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Old Feb 9, 2009 | 03:22 PM
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Air pump? Idler bearing?
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Old Mar 18, 2009 | 10:12 AM
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Default Cold Whistle
I suspect it is the air pump. I am on my fifth C5 and they have all made the same noise. I would not worry about it unless it gets louder.

Doug
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