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6.4L Power Stroke Engine and Drivetrain Discussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008 Super-Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.

       
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Old 10-27-2007, 11:46 PM   #1 (permalink)
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Turbo noise

Noticed something today, see if anyone else has. When I step on pedal and turbo winds up, if I step off accelerator I hear a grinding noise of some kind. Anybody else have this?
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Old 10-28-2007, 11:45 AM   #2 (permalink)
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Re: Turbo noise

its compressor surge.
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Old 10-28-2007, 12:37 PM   #3 (permalink)
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Re: Turbo noise

Surge is more of a "bark" or a "whooshing" sound. Does it sound like metal on metal? If so, that's not normal.
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Old 10-28-2007, 08:01 PM   #4 (permalink)
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Re: Turbo noise

Could be interpreted as a bark more than a whoosh. I will have to pay more attention next time but it just sounded a little strange.
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