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Old 05-06-2012, 09:35 PM   #1
solarcar_sc1
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1999 SC2
Default strange sound with audio file.

hows it going all, Ive been having this issue with what almost sounds like a vaccum leak coming from my head. I drive a 1999 sc1, its intermitten and only comes around under high rpms under load, never when it is free revving. itll go away when the motor cools down. things Ive done to see if it helps the issue is changed pcv and hose. unplugged egr, seafoamed the top end. and tried mmo. nothing seems to help it at all. there is no change in power or idle. I have attached a link to the audio file please listen and let me know what yall think it is. thank you.


http://dw4.convertfiles.com/files/01...20506221129.au

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1999 SC1.5 DOHC swap, 1998 MP3 tranny swap, cam mod, CAI.

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Old 05-07-2012, 02:21 PM   #2
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1999 SC2
Default Re: strange sound with audio file.

could it possibly be an intake manifold gasket leak?

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