F 550 4WD Super Duty V8-6.4L DSL Turbo (2008)
Fuel Pressure Sensor/Switch: Service and Repair
FUEL RAIL PRESSURE (FRP) SENSOR
Removal and Installation
1. WARNING: Contact with exposed fuel injector wiring, if energized, may result in electric shock. Use care when working on or around
energized fuel injector wiring. Fuel injector wiring supplies high voltage to operate the fuel injectors. Failure to follow this instruction
may result in serious personal injury.
CAUTION: Make sure the ignition switch is in the OFF position prior to working on the electronic engine controls or the vehicle may be
damaged.
Turn the ignition switch to the OFF position.
2. Remove the RH valve cover.
3. Disconnect the fuel rail pressure (FRP) sensor electrical connector.
4. CAUTION: Fuel injection equipment is manufactured to very precise tolerances and fine clearances. To prevent fuel system damage, it is
essential that absolute cleanliness is observed when working with these components. Always install fuel system caps on any open orifices
or tubes.
Remove the FRP sensor.
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To install, tighten the FRP sensor in 2 stages.
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Stage 1: Tighten to 7 Nm (62 lb-in).
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Stage 2: Tighten an additional 40 degrees.
5. To install, reverse the removal procedure.
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Bleed the high-pressure fuel system.
