loud Hissing sound behind Intercooler passanger side
 

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

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.

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/attachment.p...d=125151&stc=1

How about a snake? :D
Sorry, I'm getting delirious this morning!


-Ted

it could be the intercooler pipe is comming lose :p:

(sorry, I thought I'd state the obvious)