Orville Bleich

Ballet Master | Billings | United States

I am working as Ballet Master.

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Adding to that: the VGT actuator position % is mostly a reflection of turbo vane angle, not RPM. So 0% usually means fully open vanes, and 100% fully closed. In practice, low readings at high load can trigger CELs or cause sluggish boost response. High readings can indicate sticking vanes or a failing actuator motor.

I usually compare readings on a known-good truck or follow the service manual specs: Ford has charts for idle, part throttle, and full boost. If you want the official values, check the Ford Powerstroke 6.0L service manual—lots of tech sheets there.

Answered for the Question: "Working on a 2003-2007 Ford Powerstroke 6.0L diesel. What is the normal operating range for the VGT (Variable Geometry Turbo) actuator position and what does it mean if the reading is too high or too low?"