Knock Sensor Replacement - Bank 2

REMOVAL PROCEDURE





CAUTION:
^ Hot engine coolant may cause severe burns. Although the cooling system has been drained, coolant still remains in the engine water Jacket. This coolant will drain with the removal of the knock sensor.
^ Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable. Refer to Battery Cable Engine Electrical.

CAUTION: Refer to Hoist Caution Hoist Caution in Service Precautions.

Raise the vehicle.

2. Remove the bolts from the splash shield.
3. Drain the cooling system. Refer to Draining and Filling Cooling System in Cooling and Radiator.
4. Remove the bolts (2) from the knock sensor heat shield (1) located under the freeze plug (or block heater if equipped).
5. Disconnect the knock sensor wiring harness connector (3) from the knock sensor (4).




6. Remove the knock sensor from the engine block.





INSTALLATION PROCEDURE

IMPORTANT: Do Not apply thread sealant to sensor threads. The sensor is coated at factory and applying additional sealant will affect the sensor's ability to detect detonation.

1. Install the knock sensor (4) into the engine block.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten
Tighten the knock sensor to 19 N.m (14 lb ft).

2. Install the knock sensor heat shield.

Tighten
Tighten the. bolts to 60 N.m (44 lb ft).

3. Connect the knock sensor electrical connector (3) to the knock sensor (4).
4. Install the splash shield.
5. Lower the vehicle.
6. Fill the cooling system. Refer to Draining and Filling Cooling System in Cooling and Radiator.
7. Connect the negative battery cable.