F 450 4WD Super Duty V10-68L VIN D (2004) Fuel Pressure Test Port Description and Operation
Fuel Pressure Test Port: Service and Repair
FUEL PRESSURE RELIEF VALVE
REMOVAL
WARNING:
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Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly
flammable mixtures are always present and can be ignited, resulting in possible personal injury.
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Fuel in the fuel system remains under high pressure even when the engine is not running.
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Before working on or disconnecting any of the fuel lines or fuel system components, the fuel system pressure must be relieved.
1. Relieve the fuel system pressure.
2. Disconnect the battery ground cable.
3. Remove the pressure relief valve from the fuel injection supply manifold.
INSTALLATION
1. To install, reverse the removal procedure.
