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Bad Diverter Valve?

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  #1  
Old 10-01-2005, 06:26 PM
monkeyporn's Avatar
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Default Bad Diverter Valve?

Should I hear any sort of "blow off" type noise at all on my 01 S4? I know its a closed circut but do u still here it a little blowing it back into the motor? I get a slight blow off noise when i shift...???
 
  #2  
Old 10-04-2005, 05:10 PM
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Default RE: Bad Diverter Valve?

Could be a torn TBB also. If the DV is bad they usually tear the internal seal and just leak boost. I can not hear any kind of dump sounds on my A6 2.7T.


Andy
 
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Old 10-04-2005, 09:23 PM
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Default RE: Bad Diverter Valve?

Since we have an internally recirculating system, you should not hear any blow-off noise whatsoever. Having said that, I agree with Frost that you may have a tear in your TTB which is basically soft rubber. You should check this out immediately as this tear can cause adverse effects on your turbos..

I am getting the APR TTB and Forge 007 diverter valves installed next week which, with the APR upgrade, should make for a solid combination. It's not really a performance upgrade as it is piece of mind.
 
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Old 10-04-2005, 11:01 PM
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Default RE: Bad Diverter Valve?

I pulled the TBB off and its in great condition. Is it possible its a div valve?
 
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Old 10-05-2005, 02:57 PM
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Default RE: Bad Diverter Valve?

I guess that is likely - how many miles do you have on your S4?
I have about 42K on mine and have never heard any noises - either way, going to the Forge diverter valves would be a sound investment.
I bought them at ECS Tuning.com and they were around $130 a piece. Install will be around $70.
 
  #6  
Old 11-04-2005, 01:29 AM
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Default RE: Bad Diverter Valve?

Is there a aftermarket DV i can buy to get the traditional BOV sound and not hurt the engine?
 
  #7  
Old 11-04-2005, 12:10 PM
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Default RE: Bad Diverter Valve?

No, the only dv's that will make a BOV sound are BOVs.... What you can do is get a new intake that goes into your stock air box, the ndrill a few holes in the air box. There will be a sucking noise through the holes as you shift, which will be somewhat like a BOV sound.

But I agree, in a few days im getting a Samco TBB, and forge Diverter Valves, Eurostyleseast.com is having a sale on the forge dv's, either 120 or 130 depending on what model you get, and they each come with clamps, 2 shims, and 3 tuning springs as well, good deal if you ask me.
 
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Old 11-04-2005, 10:37 PM
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Default RE: Bad Diverter Valve?


ORIGINAL: scarzie

No, the only dv's that will make a BOV sound are BOVs.... What you can do is get a new intake that goes into your stock air box, the ndrill a few holes in the air box. There will be a sucking noise through the holes as you shift, which will be somewhat like a BOV sound.

But I agree, in a few days im getting a Samco TBB, and forge Diverter Valves, Eurostyleseast.com is having a sale on the forge dv's, either 120 or 130 depending on what model you get, and they each come with clamps, 2 shims, and 3 tuning springs as well, good deal if you ask me.
Thats wrong im sry to say, lltek has a DV/ BOV that u can use. Its not supposed to hurt the engine but i dont have nor have i heard from anyone that does.

http://lltek.com/DBOV_turbo_divertor_blowoff.htm
 
  #9  
Old 11-05-2005, 02:13 AM
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Default RE: Bad Diverter Valve?

there was a thread over on fourtitude about that, someone said that they got it and their car started to run like s*it. That may be an exxageration, but they said that even if ur just losing a little air, its still putting too rich of a mixture into your engine which isnt too great for it, but that would be your best choice to go with.
 
  #10  
Old 11-05-2005, 05:04 AM
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Default RE: Bad Diverter Valve?

or heres a thought get a boom box, put it in ur car, burn a cd with the BOV sound and hit play, and ur car will still run fine!
 


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