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Pressure Relief

Special Tool(s) 

Fig 1: Identifying Special Tool
G01309256Courtesy of FORD MOTOR CO.
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related component. 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 components, the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing personal injury or a fire hazard.
  1. Disconnect the battery. For additional information, refer to BATTERY, MOUNTING AND CABLES .
  2. Remove the Schrader valve cap and install the special tool.
    Fig 2: Removing Schrader Valve Cap And Installing Special Tool
    G01309257Courtesy of FORD MOTOR CO.
  3. Open the manual valve slowly on the special tool and relieve the fuel pressure.
    • This will drain some fuel out of the system. Place the fuel in a suitable container.
      Fig 3: Relieving Fuel Pressure
      G01309258Courtesy of FORD MOTOR CO.