loud Hissing sound behind Intercooler passanger side

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08-05-05, 02:24 AM

theone81

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loud Hissing sound behind Intercooler passanger side

i hear like a Air leak behing the Rt side Intercooler... you know what that might be...

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08-05-05, 07:07 AM

BlueTII

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I would suggest that you take your IC off and look. There are 4 vacuum lines that connect to the UIM as well as the brake booster line all in that area.

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08-05-05, 10:24 AM

vaughnc

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If it's on the passengers side, check the airpump hoses. It makes a hissing sound above 3800rpms normally when dumping air to the atmosphere instead of the catalytic converter. If you hear it at idle or lower RPMS, one of the 3 hoses may have popped off.