VGT solenoid may fail and cause over- or underboost on Ford F-350 Super Duty

The VGT solenoid can fail. The VGT solenoid receives signals from the engine control module to adjust the boost that the (variable geometry) turbo is generating. A defective solenoid can also create an overboost or underboost condition when driving.
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Average mileage: 119,894 (18,580–235,678)
Engine affected: 6.0L V8 Diesel Turbo
5 model years affected: 2003, 2004, 2005, 2006, more2007
10 people reported this problem
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problem details
2004 Ford F-350 Super Duty - 6.0L V8 Diesel Turbo 18,580 mi,
Engine looses power at times I can shut engine down wait minute restart and it's fine until next time
2006 Ford F-350 Super Duty 235,678 mi,
No pawer in coneccion vgt turbo no working and I have Code p00 46
2005 Ford F-350 Super Duty - 6.0L V8 Diesel Turbo 40,000 mi,
Low PSI in Turbo
2006 Ford F-350 Super Duty - 6.0L V8 Diesel Turbo 100,000 mi,
Over boosting causing the turbo to fluctuate creating constant issues