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Home >> Lincoln >> 2017 >> Navigator L Select, RWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - General Information >> General Procedures >> Fuel System Pressure Release
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Fuel System Pressure Release

WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
WARNING: Before working on or disconnecting any of the fuel tubes or fuel system components, relieve the fuel system pressure to prevent accidental spraying of fuel. Fuel in the fuel system remains under high pressure, even when the engine is not running. Failure to follow this instruction may result in serious personal injury.
WARNING: When handling fuel, always observe fuel handling precautions and be prepared in the event of fuel spillage. Spilled fuel may be ignited by hot vehicle components or other ignition sources. Failure to follow these instructions may result in serious personal injury.
WARNING: Do not carry personal electronic devices such as cell phones, pagers or audio equipment of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

  1. 1.

    With the vehicle in NEUTRAL, position it on a hoist. Refer to: Jacking and Lifting .

  1. 2.

    NOTE: The FPCM is located on the LH rear frame rail above the spare tire.

    Disconnect the FPCM electrical connector.

GFD136587Courtesy of FORD MOTOR COMPANY

  1. 3.

    Start the engine and allow it to idle until it stalls.

  1. 4.

    After the engine stalls, crank the engine for approximately 5 seconds to make sure the fuel rail pressure has been released.

  1. 5.

    Turn the ignition switch to the OFF position.

  1. 6.

    Disconnect battery ground cable. Refer to: Battery, Mounting and Cables .

  1. 7.

    When fuel system service is complete, reconnect the FPCM electrical connector.
GFD136587Courtesy of FORD MOTOR COMPANY

  1. 8.

    Reconnect battery ground cable. Refer to: Battery, Mounting and Cables .

  1. 9.

    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.

  1. 10.

    Start the vehicle and check the fuel system for leaks.
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