- Disconnect the negative battery cable.
- Drain the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
- Remove the wiring harness connector from knock sensor.
- Remove the knock sensor from engine block.
Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
Installation Procedure
- After applying a water base caulk to the sensor threads, install the knock sensor into the cylinder head.
- Connect the negative battery cable.
- Refill cooling system if required. Refer to Engine Cooling.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Important: Do not use silicon tape as this will insulate the sensor from the engine block.
Tighten
Tighten to 19 N·m (14 lb ft).
