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.
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HOMESERVICE MANUALSPONTIAC2009SOLSTICE L4-2.0L TURBOREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMKNOCK SENSORSERVICE AND REPAIR
2009 Pontiac Solstice L4-2.0L Turbo
Knock Sensor: Service and Repair
2009 Pontiac Solstice L4-2.0L TurboSECTION Service and Repair
Knock Sensor Replacement
Removal Procedure
1. Disconnect the engine wiring harness electrical connector (2) from the front knock sensor, if required.
2. Disconnect the engine wiring harness electrical connector (2) from the rear knock sensor, if required.
3. Remove the front knock sensor clip (1) from the oil level indicator tube, if required.
4. Remove the rear knock sensor clip (2) from the intake manifold brace, if required.
5. Loosen the appropriate knock bolt.
6. Remove the appropriate knock sensor.
Installation Procedure
Note: Rotate the pigtail 90 degrees from vertical before securing the fastener.
1. Position the appropriate knock sensor to the engine block.
Caution: Refer to Fastener Caution (Fastener Caution).
2. Tighten the appropriate knock bolt to 25 Nm (18 lb ft).
3. Install the front knock sensor clip (1) to the oil level indicator tube, if required.
4. Install the rear knock sensor clip (2) to the intake manifold brace, if required.
5. Connect the engine wiring harness electrical connector (2) to the rear knock sensor.
6. Connect the engine wiring harness electrical connector (2) to the front knock sensor.
RENDER: 1.0x
NO RELATED
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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.