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Home >> Ford >> 2003 >> Explorer Sport 4.0 K, 4WD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System-General Information >> General Procedures >> Fuel System Pressure Release

Fuel System Pressure Release

Special Tool(s) 

Fig 1: Special Tools Specifications
G03447204Courtesy 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 repairing 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 ground cable. Refer to BATTERY, MOUNTING AND CABLES .
  2. Remove the Schrader valve cap and attach the Fuel Pressure Gauge.
    Fig 2: Removing Schrader Valve Cap
    G03447205Courtesy of FORD MOTOR CO.
  3. Open the manual valve on the Fuel Pressure Gauge slowly to relieve the fuel system pressure. This may drain fuel from the fuel system. Drain the fuel into a suitable container.
    Fig 3: Locating Manual Valve On Fuel Pressure Gauge
    G03447206Courtesy of FORD MOTOR CO.