Car Problem Reports

Ford F-350 Super Duty Variable Vanes Inside Turbo Seize Due to Carbon Buildup

Ford F-350 Super Duty Problem
9 Reports
Me Too

Model Years Affected: 2003, 2004, 2005, 2006, 2007

Engine Affected: 6.0L V8 Diesel Turbo

Average Mileage: 64,057 mi (52,000 mi - 80,000 mi)


It is common to see the variable vanes inside the turbo seize or bind from carbon buildup. This causes an overboost or underboost condition when driving.

  •  Rookie

    Turbo charger had to be cleaned we were on vacation in Florida
    Experienced a decrease in power. Much hesitation as well
    Had to bring vechile to Duncan Ford
    In key west

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  • Visitor, , 6.0L V8 Diesel Turbo, 52,000 mi

    Truck sits for weeks at a time before being used. Sometimes the turbo doesn't work at all for miles then kicks in. Other times I get an overboost condition that sets off an overboost code.

    Must be carbon buildup in the turbo vanes and/or EGR valve according to what I've read. Wish someone would post how much trouble it is to take care of yourself.

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