GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Knock Sensor Replacement

Removal Procedure

    Object Number: 832149 Size: SH
  1. Remove the intake manifold. Refer to Intake Manifold Replacement .
  2. Gently pry up the rubber covers.
  3. Disconnect the knock sensor electrical connectors.

    4. Object Number: 309864 Size: SH
  4. Remove the knock sensors.

Installation Procedure

    Object Number: 309864 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 knock sensors.

    2. Tighten
    Tighten the sensor to 20 N·m (15 lb ft).


    Object Number: 832149 Size: SH
  2. Connect the knock sensor electrical connectors.
  3. Push down on the rubber covers.
  4. Install the intake manifold. Refer to Intake Manifold Replacement .