Operation CHARM: Car repair manuals for everyone.

Knock Sensor: Service and Repair



Knock Sensor Replacement

Removal Procedure




1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Remove the connector position assurance (CPA) retainer (1).
3. Disconnect the engine wiring harness electrical connector (2) from the knock sensor jumper wire electrical connector (3).
4. Remove the knock sensor jumper wire electrical connector rosebud clip from the oil level indicator tube tab.




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

Installation Procedure

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





1. Position the knock sensor to the engine block.

Notice: Refer to Fastener Notice.

2. Tighten the knock sensor bolt.

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




3. Connect the engine wiring harness electrical connector (2) to the knock sensor jumper wire electrical connector (3).
4. Install the connector position assurance (CPA) retainer (1).
5. Install the knock sensor jumper wire electrical connector rosebud clip to the oil level indicator tube tab.
6. Lower the vehicle.