Noise coming from Intake manifold KA24DE

[aznfab213]

I have a problem with my ka24de. It makes this squealing sound constantly and the sound seems to be coming from the intake manifold area. let me know what you guys think it is

240sx sound from intake manifold area - YouTube (http://youtu.be/SrGwdaTNxsc)

[bad dog]

sounds like it could be a air leak , i would get a rubber hose , put one end up to your ear move the other end around the intake , the sound will change , then spray something like wd40 around and see if the sound goes away , could be a intake gasket or vac hose.