GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Impala 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Knock Sensor Replacement - Bank 1

Removal Procedure

    Object Number: 1612884 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the left knock sensor electrical connector (1).

    3. Object Number: 1800585 Size: SH
  3. Loosen and remove the knock sensor.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1800585 Size: SH

    Note:  DO NOT apply thread sealant to the sensor threads. The sensor threads are coated at the factory. Applying additional sealant affects the sensors ability to detect detonation.

  1. Install and tighten the knock sensor.

    2. Tighten
    Tighten the sensor to 25 N·m (18 lb ft).


    Object Number: 1612884 Size: SH
  2. Connect the left knock sensor electrical connector (1).
  3. Lower the vehicle.