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 (2.2L Turbo)
Disconnect knock control sensor connector. Knock sensor is located on right side of engine, next to oil filter. Using DVOM with scale set on AC voltage, measure AC voltage between knock sensor KS terminal (Yellow/Black wire) and GND terminal (Black/Green wire). Observe voltmeter while tapping lightly on engine lifting eye with a 4-oz. hammer. Voltage reading should be greater than .03 volt. Replace sensor if voltage is not as specified.
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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.