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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

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Old Oct 11, 2007 | 04:04 PM
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ericwc
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From: Downey
air bleed off

I am new to the 6.0 world. I picked up a 03 f350 a few weeks ago. I am still learning all of sounds and feel of the truck.

One sound I am wondering about is when stopped I sometimes hear what sounds like an air pressure relief valve opening for a 5 seconds at a time. Not like air brakes but more steady. It does not always do it. Very random.

From my reading here these turbos do not have a wastgate is that reason for the sound?.

Is sound this normal?


Thanks
Eric
 
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Old Oct 11, 2007 | 04:15 PM
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Depending on your exhaust you could be hearing the turbo veins cycling, especially if your truck has the latest ford flash. The veins are cycled to keep them from sticking. Other than that I don't have a clue.
 
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Old Oct 11, 2007 | 04:34 PM
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ericwc
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From: Downey
Originally Posted by npccpartsman
Depending on your exhaust you could be hearing the turbo veins cycling, especially if your truck has the latest ford flash. The veins are cycled to keep them from sticking. Other than that I don't have a clue.
It came with a volant intake and bassani exaust no cat. The turbo sounds like a jet engine taking off when I accelerate.

edit: o ya it has the buz flash.

Eric
 

Last edited by ericwc; Oct 11, 2007 at 04:39 PM.
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Old Oct 11, 2007 | 05:49 PM
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I think you may be hearing the turbo veins opening and closing. Is it more prevalent when the truck isn't warmed up completely?
 
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Old Oct 12, 2007 | 12:45 PM
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ericwc
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From: Downey
Originally Posted by npccpartsman
I think you may be hearing the turbo veins opening and closing. Is it more prevalent when the truck isn't warmed up completely?
yes I hear it more often when the truck is still cold. But I would think it would be the other way around veins open when at idle and closing as I accelerate.
I'm confused

Eric
 
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