GT4088R Noise?

siclilly

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Apr 7, 2008
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Does anyone have gt4088R that sounds like a siren at about 3-5lbs. of boost? Does the turbo wine at all? I'm getting a siren sound. As weird as that sounds that is the best way I can describe it. Has anyone else heard this noise between 3-5lbs. of boost?
 

paint94979

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Sep 18, 2006
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Does anyone have gt4088R that sounds like a siren at about 3-5lbs. of boost? Does the turbo wine at all? I'm getting a siren sound. As weird as that sounds that is the best way I can describe it. Has anyone else heard this noise between 3-5lbs. of boost?

I hear a slight buzzing sound with my 4094, how old is the turbo? has it been beat on? According to Pat turbo noise problems are generally loud and pronounced.
 

siclilly

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Apr 7, 2008
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the turbo is about three months old Ive barked it mabey 1 or 2 times but the sound has been there since i put the turbo on the truck
 

siclilly

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Apr 7, 2008
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it only seems to make that sound when i come up on boost then there is that buzzing sound that your talking about mine does that to
 

paint94979

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Sep 18, 2006
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it only seems to make that sound when i come up on boost then there is that buzzing sound that your talking about mine does that to

Ya the buzzing is normal. Fill out your sig so we know what truck you have.
 

paint94979

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Sep 18, 2006
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Im not the most computer savy guy :(

Go up top to the left it will say User CP. click that then along the left side of the screen there will be an option that says Edit Signature. Click that then fill it out. That way we can better assist you
 

siclilly

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Apr 7, 2008
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No problem. You said the sound has been present since the turbo was new? I wouldn't worry too much about it. It does sound very different from the VVT.
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sorry if my last post sounded funny i didnt read your post right. so i wont worry then thanks for your help
 

LarryJewell

Back with his honey :)
Jan 21, 2007
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Does anyone have gt4088R that sounds like a siren at about 3-5lbs. of boost? Does the turbo wine at all? I'm getting a siren sound. As weird as that sounds that is the best way I can describe it. Has anyone else heard this noise between 3-5lbs. of boost?

Its not a gt4088, but my Cheetah has a humming/siren type sound at 2-5 psi boost, it goes away shortly upon accelerating. The sound should be normal ifs its not too loud. Have you checked the shaft for play, pull the turbo inlet and give it a jiggle :D
 

05_LLY

Out-A-Time
Aug 7, 2006
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Norvelt, PA
I think it normal, My 4094 makes a lound howling sound around 4-8 psi or so then if you push it harder then that it goes to a normal "turbo whistle" sound! The stock VVT on my wifes truck dose the same thing but i have the vane tables severly molested in it, but it works real nice and it turns heads!!!