Audi TT The Audi TT line, in both the coupe and roadster combines Audi's All Wheel Drive performance with the feel of a European sports car.

holy honking shat

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Old Dec 5, 2006 | 01:44 AM
  #1  
slowtruck's Avatar
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Default holy honking shat

i think i found out why i cant hold boost. today i started hearing a strange honking noise through my intake only when i stepped on the gas though. i was just being a looser and looking through old posts and found a whole site about DVs. http://dv.mistertam.com/12.htm ,this is it. it says that when your dv goes bad you can hear a honking noise and there is a sound clip that sounds exactly like what i started hearing today. im pretty shure that would explain why i cant hold boost and my CEL says that there is a leak somewhere. does this sound logical to anyone?
 
Old Dec 5, 2006 | 01:53 AM
  #2  
XCLR8TT's Avatar
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Default RE: holy honking shat


ORIGINAL: slowtruck

i think i found out why i cant hold boost. today i started hearing a strange honking noise through my intake only when i stepped on the gas though. i was just being a looser and looking through old posts and found a whole site about DVs. http://dv.mistertam.com/12.htm ,this is it. it says that when your dv goes bad you can hear a honking noise and there is a sound clip that sounds exactly like what i started hearing today. im pretty shure that would explain why i cant hold boost and my CEL says that there is a leak somewhere. does this sound logical to anyone?
Your diagnosis is correct. Bad DV = little or no boost.
 
Old Dec 5, 2006 | 12:39 PM
  #3  
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Default RE: holy honking shat

Please forgive me for asking.

What is a (DV)


thank you,
 
Old Dec 5, 2006 | 12:56 PM
  #4  
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Default RE: holy honking shat

Diverter Valve.

Opens when you let off the gas and it gets vacume from the intake it release boost then closes again when it doesn't get any vacume anymore.
 
Old Dec 5, 2006 | 10:00 PM
  #5  
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Default RE: holy honking shat

umm, another strange thing happened today. i was going pretty quick outta work and i got the car to do 10 pounds of boost at 6500 rpms in 2nd gear. since the honking started last night and it only happens every once in a while i think that the dv isnt completely shot. maybe there is just a small hole in the diaphram and the pressure escapes when the boost is building slowly but when the car is building boost really quickly it holds it because the air cant escape. is that a possibility?
 
Old Dec 5, 2006 | 11:39 PM
  #6  
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Default RE: holy honking shat

Sure it is possible that it isn't completely shot, but it's more than likely headed that way. Just replace it and be done with it,.
 
Old Dec 6, 2006 | 01:11 AM
  #7  
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believe me, i was going to replace it anyway. i was just confused because i have never seen it make boost like that before.
 
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