GM Service Manual Online
For 1990-2009 cars only

Knock Sensor Replacement Left Bank

Removal Procedure


    Object Number: 17099  Size: SH
  1. Disconnect the negative battery cable.
  2. Raise the vehicle.
  3. Drain the cooling system. Refer to Cooling and Radiator.
  4. Disconnect the knock sensor electrical connector.
  5. Remove the knock sensor from the engine block.

Installation Procedure

Important: Do not apply thread sealant to the sensor threads. The sensor is coated at the factory. Applying additional sealant will affect the sensor's ability to detect detonation.


    Object Number: 17099  Size: SH
  1. Install the knock sensor into the engine block.
  2. Tighten
    Tighten the knock sensor to 19 N·m (14 lb. ft.).

  3. Reconnect the knock sensor electrical connector.
  4. Lower the vehicle.
  5. Fill the cooling system. Refer to Cooling and Radiator.
  6. Reconnect the negative battery cable.

Knock Sensor Replacement Right Bank

Removal Procedure


    Object Number: 17101  Size: SH
  1. Disconnect the negative battery cable.
  2. Raise the vehicle.
  3. Drain the cooling system. Refer to Cooling and Radiator.
  4. Remove the Intermediate exhaust pipe
  5. Remove the rack and pinion heat shield.
  6. Remove the generator air cooling duct.
  7. Disconnect the knock sensor electrical connector.
  8. Remove the knock sensor from the engine block.

Installation Procedure

Important: Do not apply thread sealant to the sensor threads. The sensor is coated at the factory. Applying additional sealant will affect the sensor's ability to detect detonation.


    Object Number: 17101  Size: SH
  1. Install the knock sensor into the engine block.
  2. Tighten
    Tighten the knock sensor to 19 N·m (14 lb. ft.).

  3. Reconnect the knock sensor electrical connector.
  4. Install the generator air cooling duct.
  5. Install the rack and pinion heat shield.
  6. Install the intermediate exhaust pipe.
  7. Lower the vehicle.
  8. Fill the cooling system. Refer to Cooling and Radiator.
  9. Reconnect the negative battery cable.