Knock Sensor (KS) Replacement

REMOVAL PROCEDURE

CAUTION: Refer to Caution - Knock Sensor Service in Service Precautions.




1. Turn Off the ignition.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in Vehicle Lifting.
3. Remove the splash shield.
4. Drain the cooling system. Refer to Draining and Filling Cooling System in Cooling System.




5. Remove the knock sensor heat shield mounting bolt located under the freeze plug or block heater if equipped.
6. Disconnect the knock sensor wiring harness connector from the knock sensor.
7. Remove the knock sensor from the engine block.

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.

IMPORTANT: Do Not apply thread sealant to sensor threads. The sensor is coated at factory and applying additional sealant will affect the sensor 5 ability to detect detonation.




1. Install the knock sensor into the engine block.

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

2. Install the knock sensor heat shield mounting bolt located under the freeze plug or block heater if equipped.
3. Connect the knock sensor wiring harness connector to the knock sensor.
4. Install the splash shield.
5. Lower the vehicle.
6. Fill the cooling system. Refer to Draining and Filling Cooling System in Cooling System.