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: Inspection
- REMOVE ENGINE FROM VEHICLE (See REMOVAL )
- REMOVE INTAKE MANIFOLD AND THROTTLE BODY ASSEMBLY (See REMOVAL )
- REMOVE KNOCK SENSOR
- Disconnect the knock sensor connector.
- Remove the nut and knock sensor.
- INSPECT KNOCK SENSOR
Using an ohmmeter, make sure there is continuity between the terminals.
If there is no continuity, replace the sensor.
- REINSTALL KNOCK SENSOR
- Install the knock sensor with the nut.
Torque: 20 N.m (204 kgf.cm, 15 ft.lbf)
HINT:
Angling the knock sensor below the horizontal (below 0°) is recommended.
- Connect the knock sensor connector.
- Install the knock sensor with the nut.
- REINSTALL INTAKE MANIFOLD AND THROTTLE BODY ASSEMBLY (See INSTALLATION )
- INSTALL ENGINE TO VEHICLE (See INSTALLATION )
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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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