GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41712 Oil Pressure Switch Socket

Removal Procedure

Important: Clean the area around the oil pressure sensor. Do not allow debris to enter the engine.


    Object Number: 782680  Size: SH
  1. Disconnect the fuel pump/oil pressure sensor electrical connector (3).

  2. Object Number: 348085  Size: SH
  3. Using J 41712 , remove the fuel pump/oil pressure sensor.

  4. Object Number: 348087  Size: SH

    Important: Note the alignment of the engine oil pressure sensor fitting prior to removal.

  5. Remove the fuel pump/oil pressure sensor fitting, if necessary.

Installation Procedure


    Object Number: 348087  Size: SH
  1. Apply sealant GM U.S. P/N 12346004, Canada P/N 10953480, or equivalent to the threads of the sensor fitting, if installing the old fitting.
  2. Install the fuel pump/oil pressure sensor fitting until snug, if necessary.

  3. Object Number: 783691  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.

  4. Tighten the fuel pump/oil pressure sensor fitting.
  5. Tighten

    1. Tighten the fuel pump/oil pressure sensor fitting to 15 N·m (11 lb ft).
    2. Increase torque until the centerline of the fitting (1) is 50 degrees from the centerline of the crankshaft (2).

    Object Number: 348085  Size: SH
  6. Apply sealant GM U.S. P/N 12346004, Canada P/N 10953480, or equivalent to the threads of the fuel pump/oil pressure sensor, if installing the old sensor.
  7. Using J 41712 , install the fuel pump/oil pressure sensor.
  8. Tighten
    Tighten the fuel pump oil pressure sensor to 30 N·m (22 lb ft).


    Object Number: 782680  Size: SH
  9. Connect the fuel pump/oil pressure sensor electrical connector (3).
  10. Check and adjust the engine oil level, if necessary.