Knock Sensor: Service and Repair

Knock Sensor Replacement

Removal Procedure





1. Disconnect the engine wiring harness electrical connector (2) from the front knock sensor, if required.




2. Disconnect the engine wiring harness electrical connector (2) from the rear knock sensor, if required.




3. Remove the front knock sensor clip (1) from the oil level indicator tube, if required.
4. Remove the rear knock sensor clip (2) from the intake manifold brace, if required.




5. Loosen the appropriate knock bolt.
6. Remove the appropriate knock sensor.



Installation Procedure

Important: Rotate the pigtail 90 degrees from vertical before securing the fastener.







1. Position the appropriate knock sensor to the engine block.

Notice: Refer to Fastener Notice (Fastener Notice) .

2. Tighten the appropriate knock bolt.

Tighten the bolt to 25 N.m (18 lb ft).





3. Install the front knock sensor clip (1) to the oil level indicator tube, if required.
4. Install the rear knock sensor clip (2) to the intake manifold brace, if required.




5. Connect the engine wiring harness electrical connector (2) to the rear knock sensor.




6. Connect the engine wiring harness electrical connector (2) to the front knock sensor.