GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2002 🢒 Firebird 🢒 Engine 🢒 Engine Controls - 5.7L 🢒 Knock Sensor Replacement

Removal Procedure

    Object Number: 54608 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical-5.7L.
  3. Remove the wiring harness assembly for the knock sensor.

    4. Object Number: 54612 Size: SH
  4. Remove the knock sensor.

Installation Procedure

    Object Number: 54612 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 sensor.

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


    Object Number: 54608 Size: SH
  2. Install the wiring harness assembly for the knock sensor.
  3. Install the intake manifold. Refer to Intake Manifold Replacement in Engine Mechanical-5.7L.
  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.