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.

1. Disconnect the negative battery cable.

Refer to Battery Negative Cable Disconnection and Connection in General Information.

2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in general information.
3. Disconnect the knock sensor wiring harness connector from the knock sensor.
4. Remove the knock sensor from the engine block.

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

1. Install the knock sensor into engine block.
2. Connect the knock sensor wiring harness connector to the knock sensor.
3. Lower the vehicle.
4. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in engine electrical.