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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Whistle Noise?

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Old May 29, 2007 | 10:13 PM
  #1  
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Whistle Noise?

Hey All is anyone experiencing a whistle / wind blowing noise when you get on the throttle from a stop or getting on the throttle from about 20 mph? I have a F350 with the 6.4 and it makes a whistle noise ( kind of like when you crack your window open and drive down the street ) I called the dealer and talked to the service advisor and he told me that was normal. He said it was extra pressure blow by from the turbo? I have both the 7.3 and the 6.0 and I never heard anything like this except for the turbo whine noise when it spools up. Just wondering if he is feeding me a bunch of bull or is anyone else know about this. Thanks
 
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Old May 29, 2007 | 10:44 PM
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possible boost leak, when i bought my 6.0 it had a boost leak, i had never heard a 6.0 before so i just thought it was normal for the longest time, the sound it made was similar to what you describe because it was just air blowing out of a hole
 
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Old May 30, 2007 | 01:03 AM
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re

I straight piped my old 6.0 and it had a hell of a whistle. Does that count ??
 
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Old May 30, 2007 | 06:24 PM
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Is it coming from the engine area? I test drove a black 08 250 before purchasing mine, but when test driving it, I noticed a very noticable whistle but it was coming from the outside mirror on drivers side. It was very irritating, glad mine doesn't do it.
 
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Old May 31, 2007 | 11:17 AM
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it is definitely from the engine
 
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Old May 31, 2007 | 12:08 PM
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Not normal. My 08 F350 has over 4,000 miles and no whistle. It is quiet, smooth, and powerful.
 
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Old Jun 1, 2007 | 06:04 AM
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Originally Posted by Geaux-Fish
Is it coming from the engine area? I test drove a black 08 250 before purchasing mine, but when test driving it, I noticed a very noticable whistle but it was coming from the outside mirror on drivers side. It was very irritating, glad mine doesn't do it.

I've been hearing that whistle noise. It only happens the first few minutes of driving. At first it sounded like it was the left mirror or window seal but It might be a "very faint" alternator whine that is coming out of the left mid or tweeter when the battery is not at 100% and is charging.
 
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Old Jun 26, 2007 | 07:54 AM
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Originally Posted by DonVito
Hey All is anyone experiencing a whistle / wind blowing noise when you get on the throttle from a stop or getting on the throttle from about 20 mph? I have a F350 with the 6.4 and it makes a whistle noise ( kind of like when you crack your window open and drive down the street ) I called the dealer and talked to the service advisor and he told me that was normal. He said it was extra pressure blow by from the turbo? I have both the 7.3 and the 6.0 and I never heard anything like this except for the turbo whine noise when it spools up. Just wondering if he is feeding me a bunch of bull or is anyone else know about this. Thanks
My 6.4 has whistled like that 2 or 3 times and it has been while quickly accellarating. A mechanic relative told me it is the turb chargers and is normal but I wonder also.
 
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