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what is this sound?

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Old Sep 14, 2007 | 04:52 PM
  #1  
elkarcher's Avatar
elkarcher
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what is this sound?

I have noticed a noise coming from the drivers side of the engine. I assume it has something to do with the intake. When I get on the gas and then let off, it is a real loud swooshing noise almost like it is blowing out air from somewhere. My truck is stock except for exhaust but it made the noise befour I put the exhaust on. Any ideas?

Thanks, elkarcher
 
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Old Sep 14, 2007 | 04:59 PM
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It is the turbo dumping the extra boost. Perfectly normal. These turos don't have wastegates.

Kyle
 
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Old Sep 14, 2007 | 05:18 PM
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A. Michael Foxtrot
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do a search for "turbo fart" and you read plenty about it.

Like 6.0superduty said, it's perfectly normal.
 
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Old Sep 14, 2007 | 05:38 PM
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Is it normal for it to do it while just sitting in the driveway. It will do it if I just rev it hard. I did a search and in most cases it happend to people while the engine was under a load. Thanks for the replies.

elkarcher
 
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Old Sep 14, 2007 | 06:59 PM
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Originally Posted by elkarcher
Is it normal for it to do it while just sitting in the driveway. It will do it if I just rev it hard. I did a search and in most cases it happend to people while the engine was under a load. Thanks for the replies.

elkarcher
If it is doing it in the driveway then more than likely the turbo vanes are sticking or the acutator solenoid is bad. Take it in and let the 6.0 tech diagnose it and repair it. Sticking turbo vanes or bad acutator solenoid can lead to over boost and lift the head gaskets.
 
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Old Sep 14, 2007 | 07:32 PM
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i would go for a ypipe. get under your truck and look up at the ypipe and see if you see soot on the firewall insulation. if you do, its definitely a ypipe.
 
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Old Sep 14, 2007 | 07:56 PM
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does it only do this when you let off of the throttle ??
if you are revving up then let off the throttle sharply, and hear the sound, it is probably just a turbo fart.
 
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Old Sep 17, 2007 | 07:03 PM
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Yea, it only does it when I rev it then let off the throttle sharply.
 
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Old Sep 17, 2007 | 10:32 PM
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From: Las Vega$
you are golden that is normal, just try to let off easy when you release the pedal
 
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Old Sep 18, 2007 | 06:54 AM
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do you have a stock filter or aftermarket?
 
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Old Sep 18, 2007 | 10:24 PM
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He says it is stock, except for the exhaust.
 
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Old Sep 19, 2007 | 07:02 AM
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oh yeah, oops. with a stock filter, a turbo fart is never normal if it is audible to that degree.
 
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Old Sep 19, 2007 | 10:13 AM
  #13  
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From: Las Vega$
audible to what degree, they are VERY loud.
 
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Old Sep 19, 2007 | 11:10 AM
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normally, you should not hear them that easily. you can hear a slight fart if you turn off the accessories and listen carefully, but if it is audible over everything, then it is not normal. this only applies to stock airboxes. aftermarkets are an exception
 
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Old Sep 19, 2007 | 12:33 PM
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From: Las Vega$
Originally Posted by BowTieHatr
normally, you should not hear them that easily. you can hear a slight fart if you turn off the accessories and listen carefully, but if it is audible over everything, then it is not normal. this only applies to stock airboxes. aftermarkets are an exception
ohhhh.... k cause i have a/m and mine is loud when it does happen.
 
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