GM Service Manual Online
For 1990-2009 cars only

Engine Oil Pressure Sensor or Switch Replacement 5.7L

Tools Required

J 41712 Oil Pressure Sensor Socket

Removal Procedure


    Object Number: 379365  Size: SH
  1. Remove the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical-5.7 L.
  2. Disconnect the oil pressure sensor electrical connector (1).
  3. Important: Clean the area around the sensor before removal. This avoids debris from entering the engine.


    Object Number: 178483  Size: SH
  4. Use J 41712 to remove the oil pressure sensor from the engine block.

Installation Procedure


    Object Number: 178483  Size: SH
  1. If installing the old sensor, apply thread sealant GM P/N 12346004 or equivalent.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Use J 41712 to install the oil pressure sensor to the engine block.
  4. Tighten
    Tighten the engine oil pressure sensor to 20 N·m (15 lb ft).


    Object Number: 379365  Size: SH
  5. Connect the oil pressure sensor electrical connector (1).
  6. Install the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical-5.7 L.

Engine Oil Pressure Sensor or Switch Replacement 3.8L

Removal Procedure


    Object Number: 440853  Size: SH
  1. Disconnect oil pressure sensor electrical connector (2).

  2. Object Number: 440848  Size: SH
  3. Remove the oil pressure sensor.

Installation Procedure


    Object Number: 440848  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the oil pressure sensor.
  2. Tighten
    Tighten the oil pressure sensor to 16 N·m (12 lb ft).


    Object Number: 440853  Size: SH
  3. Connect oil pressure sensor electrical connector (2).