Knock Sensor: Service and Repair

ON-VEHICLE SERVICE



Remove or Disconnect

1. Negative battery cable.

2. Drain coolant.

3. Raise vehicle.

4. Wiring harness connector from knock sensor.







CAUTION: En ine coolant may be hot. Although coo ing system has been drained, coolant still remains in engine water jacket. This coolant will drain when knock sensor is removed.

5. Knock sensor from engine block. Install or Connect

NOTE: 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.

1. Knock sensor into engine block.

Tighten

^ Knock sensor to 19 Nm (14 ft lb).

2. Wiring harness connector to the knock sensor.

3. Lower vehicle.

4. Fill coolant.

5. Negative battery cable.