Help me identify my weird rev squeal please???

J

jared_blown5.0

New Member

Dec 27, 2005

73

0

0

Jul 14, 2007

#1

• Jul 14, 2007

• #1

My car never did this until 2 weeks ago when installed my supercharger. Its not the supercharger it sounds like its coming from the top of the manifold in back/center or the bellhousing. It only does it after you rev it and it is reving down. I did however change valvcover and reset the preload on my lifters but doubt thats what it is. Here is a video of the squeal sound:

http://youtube.com/watch?v=47nhwaciqbI

update: Not the blower or the accesories, I took the belts off and fired it and still squeals after you rev it, also the rockers arent rubbing.


Thanks guys for the help
-Jared

 

juiced_94gt

Active Member

Mar 30, 2005

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Southern California

Jul 14, 2007

#2

• Jul 14, 2007

• #2

PCV maybe??? sounds weird like air trying to escape

 

slvrbullit302

New Member

Jan 6, 2004

986

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Alabama

Jul 14, 2007

#3

• Jul 14, 2007

• #3

I agree with the above post, maybe the pcv is leaking somehow.

 

J

jared_blown5.0

New Member

Dec 27, 2005

73

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0

Jul 14, 2007

#4

• Jul 14, 2007

• #4

nope just changed it still does it!!!

 

Stanger007

Founding Member

Sep 26, 2001

2,015

2

46

Baton Rouge, LA

Jul 14, 2007

#5

• Jul 14, 2007

• #5

Trace your vacuum lines and listen to each one.

Depending on the condition of your motor, excessive blowby can push past the weakest link in your system.

Lower intake end seals can pop out although I would think that you would see oil coming out as well.

PCV system doing well? I got a supercoupe PCV valve for my setup - the stock PCV lets air past at boost. The supercoupe one seals tight. (I had two brand new from Ford and blew on them both lol)

Wes

 

StinkinLincoln

Member

Dec 9, 2006

240

0

17

Louisiana

Jul 14, 2007

#6

• Jul 14, 2007

• #6

ditto on stanger's post, its air being pushed through a small hole creating the whine. btw did ur throttle cable on the TB fit perfect? mine had alot of extra slack and had to tie it w/ wire ties to take the slack out...and i dont like that.

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Jul 14, 2007

#7

• Jul 14, 2007

• #7

I also agree. Excellent advice from Wes.

The noise might also be pressure actually bleeding past your Rear main seal.

Good luck.

 

Stanger007

Founding Member

Sep 26, 2001

2,015

2

46

Baton Rouge, LA

Jul 14, 2007

#8

• Jul 14, 2007

• #8

I went through on each of my vacuum lines, replaced them all and put a hose clamp on each so that the boost doesn't pop them off.