Knock Sensor (KS) 2 Replacement

REMOVAL PROCEDURE

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. Turn OFF the ignition switch.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Remove the bolts from the splash shield.
4. Drain the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
5. Remove the bolts (2) from the knock sensor heat shield (1) located under the freeze plug (or block heater if equipped).
6. Disconnect the knock sensor wiring harness connector (3) from the knock sensor (4).




7. Remove the knock sensor (2) from the engine block (1).

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's ability to detect detonation.




1. Install the knock sensor (2) into the engine block (1).

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

2. Install the knock sensor heat shield

Tighten
Tighten the bolts to 60 N.m (44 lb ft).

3. Connect the knock sensor electrical 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.