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  #1  
Old 10-27-2010, 08:59 AM
brad7.3 brad7.3 is offline
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Loud whoosh sound?

Ok, I know the title is stupid, but the last few days my truck has been making this retarded sucking/wooshing sound. About a month ago I read in a post about something that sounds just like it and it mentioned disconnecting "it". What is "it"? I cant find the thread it was in.
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Old 10-27-2010, 09:11 AM
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Its most likely the Exhaust back pressure valve . You can unplug it ,just behind the turbo...Or Wire it open , or gut it like some have done..

Gutting the Exhaust Back Pressure Valve - 1994-1997 Power Stroke FAQ

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Old 10-27-2010, 09:33 AM
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Yep, little two wire connector under the turbo, driver side. Disconnect and forget about it... then maybe delete it later, that's my plan.
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Old 10-27-2010, 11:07 AM
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Very good, thanks fellas!
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Old 10-27-2010, 02:44 PM
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My plan too
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Old 10-27-2010, 05:36 PM
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Why do people do this?

When I was installing my tymar downpipe last weekend the directions also had a write up about removing this thing. I didn't do it, but was very curious what the pros and cons are?
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Old 10-27-2010, 05:41 PM
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IMO its worthless. Some use it as an exhaust brake, may help some. All its for originally is to help in warmup on cold days. Fast idle on a chip takes care of that as good anyway I think. It does affect air flow, although minimal, it does. I gutted mine when I installed my tymar and deleted it off the turbo pedestal when I rebuilt the turbo.
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Old 10-27-2010, 06:12 PM
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You say it's worthless. Do you mean a worthless modification or the valve itself is worthless and you think it should be taken out.
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Old 10-27-2010, 06:15 PM
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Personally I like hearing engaged at -4 F. It's like having a candle in a cold room. It doesn't really warm you up, but you feel better having a flame nearby...
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Old 10-27-2010, 06:24 PM
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Quote:
Originally Posted by King7765 View Post
You say it's worthless. Do you mean a worthless modification or the valve itself is worthless and you think it should be taken out.
The Valve is worthless .
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Old 10-27-2010, 06:42 PM
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^^^what Rick said^^^
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Old 10-27-2010, 06:42 PM
 
 
 
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