So I just did my valve cover gasket..took the car for a drive and apparently the passenger side gasket came off and I had oil everywhere..So took the car apart again and fixed the issue except now I have a terrible squeal noise coming from what seems like behind the throttle body and I have no idea why. Anyone ever hear of this?

 

Squeal 350z:
Here's a video

 

Could be a very small vacuum leak.
I had a small vacuum leak on an oil catch can line and it emitted a high pitched scream/whistle.

 

Says this video is private.

 

Sorry about that just fixed the video

 

pinched vacuum hose.

 

really? thats a crazy sound ill check all my hoses once I'm done eating . thanks for the reply ill let you know once i check

 

I had the same noise on my PCV hose.

 

found the culprit. There was a tiny spot where my plenum gasket was bent right behind the throttle body .I don't know how i didn't catch it during install but looks like ill be picking up a new gasket. i reinstalled the plenum and put my finger where the gasket was bent and the noise stopped thanks for the help fellas i had no idea a leak could sound like that

 

That video kind of made me laugh lol

 

That was truely lol

 

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