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  1. 2003-2007 6.0L Power Stroke
    Has anyone out there heard a major air bypass sound coming from the turbo area when driving. If I start up a steep hill the motor will begin to buck and you can here an air by pass sound through the fire wall. Have already change the ICP, turbo rebuilt, VGT, EGR all fuel filters and MAP...
  2. 2003-2007 6.0L Power Stroke
    Just went through the typical replacement of the EGR, et al as the truck broke down. I had been experiencing surging at least through the first few gears. The engine rythmically goes up and down by +/- 100 RPMs. Not as noticeable if I just floor the pedal, but still feel it. The local Ford techs...
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