2012 Jeep Wrangler JK Factory Service Manual 09 - Engine, 3.6L

SENSOR, Oil Pressure

DESCRIPTION

DESCRIPTION

The oil pressure sensor (2) is located on the oil filter housing (3). The oil pressure sensor is a three wire sensor with a tapered threaded sensor port. The sensor port is mounted to the oil filter housing through an access hole. A thread lock patch seals the oil pressure sensor to the oil filter housing.

OPERATION

OPERATION

The oil pressure sensor is a silicon based sensing unit that measures the pressure of the engine oil. The Powertrain Control Module (PCM) supplies a 5 volt reference and a ground to the sensor. The input to the PCM occurs on the signal return circuit. The oil pressure sensor is a linear sensor; as pressure changes, voltage changes proportionately and returns a voltage signal to the PCM that reflects oil pressure. The zero pressure reading is 0.5 volt and full scale is 4.5 volt.

REMOVAL

REMOVAL

  1. Release fuel system pressure (Refer to 14 - Fuel System/Fuel Delivery - Standard Procedure) .

    2.  
  2. Disconnect and isolate the negative battery cable.

    3.  
  3. Remove the air inlet hose, upper intake manifold and lower intake manifold with the fuel injectors and fuel rail (2) (Refer to 09 - Engine/Manifolds/MANIFOLD, Intake - Removal)
    .

    4.  
  4. Disconnect the oil pressure sensor electrical connector (4).

    5.  
  5. Remove the oil pressure sensor (2) from the oil filter housing (3).

    6.  

INSTALLATION

INSTALLATION

  1. Install the oil pressure sensor (2) and tighten to 20 N·m (177 in. lbs.).

    2.  
  2. Connect the oil pressure sensor electrical connector (3).

    3.  
  3. Install the upper and lower intake manifolds and air cleaner housing assembly (Refer to 09 - Engine/Manifolds/MANIFOLD, Intake - Installation)

    4.  
  4. Connect the negative battery cable and tighten nut to 5 N·m (45 in. lbs.).

    5.