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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Electronic Engine Control) >> Removal And Installation >> Fuel Rail Pressure and Temperature Sensor - 4.6L (3V), 5.4L (4V) >> Removal And Installation

Removal And Installation

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
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.
  1. Release the fuel system pressure. For additional information, refer to FUEL SYSTEM - GENERAL INFORMATION .
  2. Disconnect the battery ground cable. For additional information, refer to BATTERY, MOUNTING AND CABLES .
  3. Disconnect the fuel rail pressure and temperature sensor electrical connector.
  4. Disconnect the vacuum hose from the fuel rail pressure and temperature sensor.
  5. Remove the 2 bolts and the fuel rail pressure and temperature sensor.
    • To install, tighten to 6 Nm (53 lb-in).
  6. To install, reverse the removal procedure.
    • Inspect the O-ring seal and install new as necessary.
    • Lubricate the O-ring seal with clean engine oil.
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