GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 Engine 🢒 Engine Mechanical - 8.1L 🢒 Engine Oil Pressure Sensor and/or Switch Replacement

Removal Procedure

    Object Number: 742254 Size: SH
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Disconnect the oil pressure sensor electrical connector (3).

    3. Object Number: 787691 Size: SH
  3. Remove the oil pressure sensor.

Installation Procedure

    Object Number: 787691 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 30 N·m (22 lb ft).


    Object Number: 742254 Size: SH
  2. Connect the oil pressure sensor electrical connector (3).
  3. Install the engine cover. Refer to Engine Cover Replacement .