GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2001 🢒 Sunfire 🢒 Engine 🢒 Engine Controls - 2.4L 🢒 Knock Sensor Replacement

Removal Procedure

    Object Number: 410062 Size: SH
  1. Disconnect the knock sensor (KS) electrical connector.

    2. Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  2. Raise the vehicle.

    3. Object Number: 410063 Size: SH
  3. Loosen the knock sensor fastener.

    4. Object Number: 410065 Size: SH
  4. Remove the knock sensor from the engine block.

Installation Procedure

    Object Number: 410065 Size: SH
  1. Clean the threads thoroughly.
  2. Install the knock sensor into the engine block.

    3. Object Number: 410063 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.

  3. Tighten the knock sensor fastener.

    4. Tighten
    Tighten the knock sensor fastener to 25 N·m (18 lb ft).


    Object Number: 410062 Size: SH
  4. Lower the vehicle.
  5. Connect the knock sensor wiring electrical connector.