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6.7L Power Stroke Diesel 2011-current Ford Powerstroke 6.7 L turbo diesel engine

Does everyones truck idle/spool up and down when just sitting??

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Old Aug 7, 2014 | 09:29 AM
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Does everyones truck idle/spool up and down when just sitting??

My truck when idling kind of spools up a little bit for a few seconds and then the turbo goes back down. sounds really cool actually. its been doing it since the truck was new, sounds like a plane engine shutting down lol. It does it over and over sometimes. I just deleted the dpf and unplugged egr last night and now i can really hear it! is this normal
 
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Old Aug 7, 2014 | 09:35 AM
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mine does it
 
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Old Aug 7, 2014 | 09:40 AM
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something to do with turbo vanes?? Thats what i have found... It has nothing to do with regen or the egr right?
 
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Old Aug 7, 2014 | 09:41 AM
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Normal. Why? I've not a clue
 
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Old Aug 7, 2014 | 10:12 AM
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Normal here. Also no idea why.
 
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Old Aug 7, 2014 | 10:28 AM
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I think it has to do with the demand for current from the alternator, but that's just a guess.
 
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Old Aug 7, 2014 | 12:40 PM
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EGR'd Detroit 60 series engines also do that.. Only 10 times louder.
 
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Old Aug 7, 2014 | 08:11 PM
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Mine is all stock and still does it. It's really the only time you get to hear the turbo well, especially if you're against a fence or building.
I think it sounds great. I bet it sounds even better for those of you who improved your trucks.
 
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Old Aug 7, 2014 | 09:52 PM
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Mine does it. Usually does in sets of 2. Good to hear I'm not the only one.
 
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Old Aug 7, 2014 | 11:51 PM
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I love the sound! When the truck is nice and warm at operating temp, MiniMaxx on Hot, and you stop to fuel up or what ever may be <3
I'm running 4" straight piped, my buddy's 5" sounds even better.
 
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Old Aug 11, 2014 | 12:20 AM
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I like the cycling. I think they added that on later model year 6.0s as well so the vanes wouldn't stick. I did have an issue with VGT vanes sticking.

People just look at me strange like I'm doing it intentionally, but nope!
 
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