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.
2008 Pontiac Solstice L4-2.4LFACTORY OEM SERVICE PROCEDURE
Knock Sensor: Service and Repair
Knock Sensor Replacement
Removal Procedure
1. Disconnect the knock sensor (KS) electrical connector (3).
2. Remove the KS electrical connector clip from the oil level indicator tube bracket.
3. Remove the KS bolt.
4. Remove the KS.
Installation Procedure
Important: Rotate the pigtail 90 degrees from vertical before securing the fastener.
1. Install the KS.
Notice: Refer to Fastener Notice (Fastener Notice) .
2. Install the KS bolt.
Tighten the bolt to 25 N.m (18 lb ft).
3. Disconnect the KS electrical connector (3).
4. Install the KS electrical connector clip to the oil level indicator tube bracket.
Factory Service Tools
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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