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Nick Okeeffe
Tinkerer
Victoria
JZZ30 Soarer TT

Posts: 7
Reg: 04-2010

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Friday, April 16, 2010 - 07:08 pm, by:  Nick Okeeffe (Nicko88) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi guys, I tried to search for some threads on my problem but had no luck.
Anyway the other day I was driving and all of a sudden when I hit boost i heard a loud squeeling noise. Since then when I hit just over 2000rpm my car makes a loud squeeling noise, it sounds to me like its coming from the front of the motor, maybe a belt? Theres no smoke and the car still seems to have full power. Does anybody have any idea what it could be? Any help would be very much appreciated.
Austen Menze
DieHard
WA
GT-TL

Posts: 694
Reg: 07-2009

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Friday, April 16, 2010 - 09:19 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Check the hose clamps on your piping, it's the pressurised air escaping.
Nick Okeeffe
Tinkerer
Victoria
JZZ30 Soarer TT

Posts: 8
Reg: 04-2010

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Saturday, April 17, 2010 - 06:47 pm, by:  Nick Okeeffe (Nicko88) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I've checked the piping it doesn't really sound like air escaping and the noise seems to be coming from just below the intake plenum.
Matt Sartori
DieHard
Western Australia
Rx7

Posts: 606
Reg: 08-2008

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Saturday, April 17, 2010 - 08:00 pm, by:  Matt Sartori (Klutch) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

99.9% chance it'll be a boost leak.

Triple check all piping, make sure theres no splits in them and tighten all clamps.
Rob Rojo
Goo Roo
NSW
Soarer TT

Posts: 3797
Reg: 02-2010

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Saturday, April 17, 2010 - 11:35 pm, by:  Rob Rojo (Rob_tt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

My money is on a blown turbo. Sorry.
Austen Menze
DieHard
WA
GT-TL

Posts: 704
Reg: 07-2009

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Sunday, April 18, 2010 - 12:12 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Muffler bearings are shot.
Marc Hoffmann
TryHard
Vic
Soarer TT

Posts: 219
Reg: 07-2009

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Sunday, April 18, 2010 - 03:44 pm, by:  Marc Hoffmann (Rushed) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

could be turbos if its on the transition point from vac/boost (listen and watch your boost gauge)

if you think its not turbos, and from front of motor, my car used to squeal if you jabbed the throttle from a stop, and really badly when i put on aircon, crank pully flew off a week later.

the squealing turned out to be the pully part of the balancer had separated from the rubber bonding ring, thus eventually ejecting it from the car.

two things for you to check
Ryan McDonough
DieHard
NSW
STOCK JZZ30 TT

Posts: 656
Reg: 07-2005

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Monday, April 19, 2010 - 09:10 am, by:  Ryan McDonough (Ryan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Austen Menze wrote on Sunday, April 18, 2010 - 12:12 pm:

Muffler bearings are shot.




I have not heard that one in a while.. :-)
Nick Okeeffe
Tinkerer
Victoria
JZZ30 Soarer TT

Posts: 9
Reg: 04-2010

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Wednesday, April 21, 2010 - 08:11 pm, by:  Nick Okeeffe (Nicko88) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I don't know if this helps but it only makes the noise when the car is warm, when it's cold it doesn't make it at all.
Austen Menze
DieHard
WA
GT-TL

Posts: 713
Reg: 07-2009

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Wednesday, April 21, 2010 - 09:04 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Does it only make the noise on boost? Try revving it upto like 3k in neutral or park and see if it still makes the noise.
Nick Okeeffe
Tinkerer
Victoria
JZZ30 Soarer TT

Posts: 10
Reg: 04-2010

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Thursday, April 22, 2010 - 04:55 pm, by:  Nick Okeeffe (Nicko88) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Yeh it still does make the noise in park.
Austen Menze
DieHard
WA
GT-TL

Posts: 715
Reg: 07-2009

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Thursday, April 22, 2010 - 05:41 pm, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ah okay, don't think its a boost leak then as it shouldn't be making boost at 3k in park.

Could be a pulley or an old serpentine belt that's slipping.

Use a bit of garden hose, one end in your ear and prod around with the other end to find where the noise is coming from :-)
Nick Okeeffe
Tinkerer
Victoria
JZZ30 Soarer TT

Posts: 11
Reg: 04-2010

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Friday, April 23, 2010 - 09:43 pm, by:  Nick Okeeffe (Nicko88) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Well the cars in the mechanics now so I'll find out what was causing the noise on Tuesday
Nick Okeeffe
Tinkerer
Victoria
JZZ30 Soarer TT

Posts: 12
Reg: 04-2010

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Friday, April 30, 2010 - 02:21 pm, by:  Nick Okeeffe (Nicko88) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hey I got my car back from the mechanics and it turns out one of the pulley bearings was stuffed so got that replaced and no more noise.
Austen Menze
DieHard
WA
GT-TL

Posts: 731
Reg: 07-2009

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Saturday, May 01, 2010 - 11:59 am, by:  Austen Menze (Mercyfulfate) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Glad its sorted mate, which pulley was it?
Nick Okeeffe
Tinkerer
Victoria
JZZ30 Soarer TT

Posts: 13
Reg: 04-2010

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Sunday, May 02, 2010 - 01:53 pm, by:  Nick Okeeffe (Nicko88) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I think it was a drive pulley but I'm not exactly sure

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