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Fuel System Pressure Release-With Schrader Valve: Procedure

WARNING: 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 may be ignited, resulting in possible personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running. Before servicing or disconnecting any of the fuel lines or fuel system component, the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing personal injury or a fire hazard.
  1. Remove the Schrader valve cap and install the Fuel Pressure Gauge.
    Fig 1: Removing Schrader Valve Cap And Installing Fuel Pressure Gauge
    G03242054Courtesy of FORD MOTOR CO.
  2. CAUTION: Open the manual valve slowly on the Fuel Pressure Gauge.
  3. Relieve the fuel pressure.
    • Place the fuel in a suitable container.
      Fig 2: Relieving Fuel Pressure
      G03242055Courtesy of FORD MOTOR CO.