Knock Sensor: Service and Repair

REMOVAL

1. DISCHARGE FUEL SYSTEM PRESSURE
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

3. DRAIN ENGINE COOLANT
4. REMOVE INTAKE MANIFOLD ASSEMBLY
a. Remove the intake manifold.

5. REMOVE KNOCK SENSOR
a. Disconnect the 2 knock sensor connectors.




b. Remove the 2 nuts and 2 knock sensors.

INSTALLATION

1. INSTALL KNOCK SENSOR




a. Install the 2 knock sensors with the 2 nuts, as shown in the illustration.

Torque: 20 N.m (204 kgf.cm, 15 ft.lbf)

b. Connect the 2 knock sensor connectors.

2. INSTALL INTAKE MANIFOLD ASSEMBLY
a. Install the intake manifold.

3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
4. PERFORM INITIALIZATION
a. Perform initialization.

NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

5. ADD ENGINE COOLANT
6. CHECK FOR ENGINE COOLANT LEAKS
a. Check for engine coolant leaks.

7. CHECK FOR FUEL LEAKS