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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 12 (ENGINE CONTROLS - INTRODUCTION)REPAIR INSTRUCTIONSKNOCK SENSOR (KS) 1 REPLACEMENTREMOVAL PROCEDURE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Removal Procedure
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Removal Procedure
WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.
- Record the preset radio stations.
- Turn the ignition OFF.
- Disconnect the negative battery cable.
- Disconnect the knock sensor 1 harness connector.
- Release the accessory drive belt from the generator pulley and belt tensioner pulley.
- Remove the upper generator to the engine block bolt.
- Raise the vehicle.
- Remove the right side front splash shield pushpins and screws to remove the splash shield.
- Remove the belt tensioner bolts and remove the belt tensioner.
- Remove the generator L-terminal connector nut (ring terminal nut), then remove the connector from the generator.
- Remove the generator charging terminal wire (ORN wire).
- Remove the lower generator to the engine block bolt and move the generator enough to access the knock sensor 1 wire.
- Remove the knock sensor 1 bolt and the knock sensor 1 from the attachment clips, and then remove the knock sensor 1.
CAUTION:
Ensure that the vehicle is properly supported and squarely positioned. To help avoid personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the opposite end from which the components are being removed.
IMPORTANT:
Note the knock sensor 1 wire routing before removing the 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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.