Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Knock Sensor: Replacement
- DISCHARGE FUEL SYSTEM PRESSURE (See PRECAUTION )
- 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.
- DRAIN ENGINE COOLANT
- REMOVE INTAKE MANIFOLD ASSY (See REPLACEMENT )
- REMOVE KNOCK SENSOR
- Disconnect the sensor connector.
- Using SST, remove the sensor.
SST 09816-30010
- INSTALL KNOCK SENSOR
- Using SST, install the sensor.
SST 09816-30010
Torque: 44 N.m (449 kgf.cm, 32 ft.lbf)
- Connect the sensor connector.
- Using SST, install the sensor.
- INSTALL INTAKE MANIFOLD ASSY (See REPLACEMENT )
- CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
- PERFORM INITIALIZATION (See INITIALIZATION
) NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
- ADD ENGINE COOLANT
- CHECK FOR ENGINE COOLANT LEAKS (See COOLING SYSTEM )
- CHECK FOR FUEL LEAKS (See PRECAUTION )
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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