F 150 4WD V8-5.4L Flex Fuel (2008)
3. NOTE: The electrical connector was disconnected during fuel system pressure release.
Connect the electrical connector.
4. NOTE: It may take more than one key cycle to pressurize the fuel system.
Cycle the ignition key and wait 3 seconds to pressurize the fuel system. Check for leaks before starting the engine.
5. Test the fuel system pressure to make sure it is within the specified range.
6. NOTE:
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5.4L shown, 4.6L and 4.2L similar.
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Open the drain valve slowly to relieve the fuel system pressure. This may drain fuel from the system. Place the fuel in a suitable container.
Upon completion of the fuel system pressure test, open the drain valve on the special tool and relieve the fuel system pressure.
