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

SENSOR, Oil Temperature

DESCRIPTION

DESCRIPTION

The oil temperature sensor (1) is located on the oil filter housing (3). The oil temperature sensor is a two wire sensor with a tapered threaded sensor probe. The sensor probe is mounted to the oil filter housing through an access hole. A thread lock patch seals the oil temperature sensor to the oil filter housing.

OPERATION

OPERATION

The oil temperature sensor is a variable resistor that measures the temperature of the engine oil. The Powertrain Control Module (PCM) supplies a 5 volt reference and a ground to the sensors low reference signal circuit. When the oil temperature is low, the sensor resistance is high. When the oil temperature is high, the sensor resistance is low.

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 temperature sensor electrical connector (5).

    5.  
  5. Remove the oil temperature sensor (1) from the oil filter housing (3).

    6.  

INSTALLATION

INSTALLATION

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

  1. Connect the oil temperature sensor electrical connector (4).

    2.  
  2. Install the upper and lower intake manifolds and air cleaner housing assembly (Refer to 09 - Engine/Manifolds/MANIFOLD, Intake - Installation)

    3.  
  3. Connect the negative battery cable and tighten nut to 5 N·m (45 in. lbs.).

    4.