loud Hissing sound behind Intercooler passanger side
#3
knowledge junkie
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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.
![](https://www.rx7club.com/attachments/2nd-generation-specific-1986-1992-17/125151-loud-hissing-sound-behind-intercooler-passanger-side-rx-7_fc3s_air_pump.gif)
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NCross
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08-29-15 01:55 PM