screaming problem, help!

[scirocco-al at insight.rr.com (Scirocco-Al)]

Try grabbing the top of the intake manifold and moving it up and down..
Sometimes the bolts work loose and you get a leak at the head.  It's the
only thing I can think of.

Alan
----- Original Message ----- 
From: "Dan Smith" <sad_rocc@yahoo.com>
To: "Joe Doty" <Joe.Doty@lcnetwork.com>; <scirocco-l@scirocco.org>
Sent: Tuesday, October 07, 2003 6:21 PM
Subject: RE: screaming problem, help!


> It's definitely coming from right around the throttle body and I didn't
check the manifold itself. That could definitely make the noise it's making
though. The boot from the fuel dist to the TB is okay as far as I can see.
No suction feeling, no tears. I have the hard plastic intake piece between
the boots and I couldn't feel any splits in it. I have an a2 golf TB with
the Neuspeed adapter piece. Should there be a gasket or something between
any of those parts? I didn't feel suction, but with just metal to metal
contact, a small crack or space could develope somewhere it seems.
>
> Dan
>
> Joe Doty <Joe.Doty@lcnetwork.com> wrote:
> You have a big ass vacuum leak. Check all the rubber intake boots and
> hoses. I've also found 8v intake manifolds to come loose on more than
> one occasion, causing this horrendous noise.
>
> Joe
>
> -----Original Message-----
> From: Dan Smith [mailto:sad_rocc@yahoo.com]
> Sent: Tuesday, October 07, 2003 2:53 PM
> To: scirocco-l@scirocco.org
> Subject: screaming problem, help!
>
> My 84 has developed an intense screaming noise. It started yesterday,
> after the car had been sitting all day. I popped the hood with the car
> on and it sounds like it's coming from right around the throttle body.
> When driving (I had to drive it) it ranges from sounding like a tea
> kettle boiling to a muffled belt squeal, depending on the condition the
> car is in (ie. idle, slowing down, slowly speeding up, maintaining
> speed, etc). When I first popped the hood, it was pretty loud but not
> terrible. I checked the intake boots (no visable cracks) and felt around
> the throttle body but didn't feel any suction. It sounded like what
> you'd get if there was a strong force sucking air through a very small
> opening. When the car's idle dropped down a little, the sound got so
> intense I think I have some minor hearing damage. Any idea what is going
> on? Belts don't look like they're rubbing anywhere, couldn't find any
> tears in the boot, tb seems ok. The only time the sound isn't present is
> on strong
> acceleration (like having the pedal halfway down when you're pulling
> away from a stop sign or something). It didn't seem to affect the way
> the car drove, no warning lights are on (the oil one does work) and all
> temps seemed to be okay.
>
> Dan
>
>
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