Knock Sensor: Service and Repair

Knock Sensor Replacement

Removal Procedure





1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LAT) ()Battery Negative Cable Disconnection and Connection (LZ4/LY7) ().
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service Intervals).
3. Disconnect the engine wiring harness electrical connector (1) from the knock sensor pigtail electrical connector (6).
4. Remove the knock sensor electrical connector pigtail (6) clip from the oil level indicator tube bracket.




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



Installation Procedure

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







1. Install the knock sensor.
Notice: Refer to Fastener Notice (Fastener Notice).


2. Install the knock sensor bolt.

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





3. Install the knock sensor electrical connector pigtail (6) clip to the oil level indicator tube bracket.
4. Connect the engine wiring harness electrical connector (1) to the knock sensor pigtail electrical connector (6).
5. Lower the vehicle.
6. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LAT) ()Battery Negative Cable Disconnection and Connection (LZ4/LY7) ().