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2003-2009 Nissan 350Z

please help!!

Old 03-17-2015, 10:55 AM
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unleadedhippo
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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?
Old 03-17-2015, 11:21 AM
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unleadedhippo
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Squeal 350z:

Here's a video
Old 03-17-2015, 11:59 AM
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blufc3s
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Originally Posted by unleadedhippo
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?
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.
Old 03-17-2015, 12:02 PM
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Originally Posted by unleadedhippo
Squeal 350z: YouTube

Here's a video
Says this video is private.
Old 03-17-2015, 12:14 PM
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unleadedhippo
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Originally Posted by blufc3s
Says this video is private.
Sorry about that just fixed the video
Old 03-17-2015, 12:24 PM
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woody03
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pinched vacuum hose.
Old 03-17-2015, 12:55 PM
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unleadedhippo
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Originally Posted by woody03
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
Old 03-17-2015, 01:10 PM
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I had the same noise on my PCV hose.
Old 03-17-2015, 01:43 PM
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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
Old 03-17-2015, 02:34 PM
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venture210
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That video kind of made me laugh lol
Old 03-17-2015, 08:28 PM
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That was truely lol
Old 03-18-2015, 08:53 AM
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