Knock Sensor: Service and Repair

WARNING: Engine coolant may be hot. Although cooling system has been drained, coolant still remains in engine water Jacket. This coolant will drain when knock sensor is removed.

REMOVE OR DISCONNECT
1. Negative battery cable.
2. Raise vehicle.
3. Splash shield, drain cooling system.
4. Knock sensor heat shield mounting bolt located under freeze plug (or block heater if equipped).
5. Knock sensor wiring harness connector from knock sensor.
6. Knock sensor from the engine block.

CAUTION: 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.

INSTALL OR CONNECT
1. Knock sensor into engine block and tighten to 19 Nm (14 lb ft).
2. Knock sensor heat shield mounting bolt located under the freeze plug (or block heater if equipped).
3. Knock sensor wiring harness connector to the knock sensor.
4. Splash shield.
5. Lower the vehicle.
6. Fill the cooling system.
7. Negative battery cable.