Knock Sensor: Service and Repair

REMOVE OR DISCONNECT
1. Negative battery cable.
2. Drain cooling system.
3. Raise vehicle.
4. Wiring harness connector from knock sensor.

WARNING: Engine coolant may be hot. The knock sensor is mounted in the engine block cooling passage. Engine coolant will drain when the knock sensor is removed.

5. Knock sensor from block.

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

INSTALL OR CONNECT
1. Knock sensor into block.

Tighten
^ Sensor to 19 Nm (14 lb ft.).
2. Wiring harness connector to knock sensor.
3. Lower vehicle.
4. Refill cooling system and pressure test for leaks.
5. Negative battery cable.