Fuel Pressure Sensor: Service and Repair

Fuel Rail Pressure and Temperature Sensor - 4.6L (3V)













Removal and Installation

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: Always disconnect the battery ground cable at the battery when working on an evaporative emission (EVAP) system or 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. Release the fuel system pressure. For additional information, refer to Fuel Delivery and Air Induction.

2. Disconnect the battery ground cable. For additional information, refer to Battery.

3. Disconnect the fuel rail pressure and temperature sensor electrical connector.

4. Disconnect the fuel rail pressure and temperature sensor vacuum hose connector.

5. Remove the 2 bolts and the fuel rail pressure and temperature sensor.
- To install, tighten to 6 Nm (53 lb-in).

6. Remove and discard the O-ring seal.

7. NOTICE: Use an O-ring seal made of special fuel resistant material. Fuel will damage ordinary O-ring seals and may cause the fuel system to leak.

NOTICE: Do not reuse the O-ring seal. The removal and installation process may damage the used O-ring seals and cause the fuel system to leak.

To install, reverse the removal procedure.

- Lubricate the new O-ring seal with clean engine oil.