2008 F450 Dually odd sound - Ford Powerstroke Diesel Forum
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Old 11-27-2011, 05:31 PM
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2008 F450 Dually odd sound

I just purchased a 2008 F450 Dually and I noticed a higher pitch whine when the accelerator is pressed. The sounds goes away when I let off the accelerator and/or coast along but starts right back up when I press the accelerator again. The higher pitch is loudest between 30-50 MPH or so. Is it the turbo? Any ideas should be appreciated.

Jack
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Old 11-27-2011, 05:36 PM
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Is it a manual trans?
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Old 11-27-2011, 05:42 PM
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It is an automatic
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Old 12-02-2011, 11:36 AM
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It's the rear axle. Very common complaint. The dana 110 is a loud axle, seems to get worse with age.
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