buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Sensors and Switches - Restraint Systems > < General Information|Page 2905
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Knock Sensor: Service and Repair

Removal Procedure

1. Disconnect the negative battery cable. Refer to Battery Disconnect Caution in Service Precautions.
2. Raise the vehicle.
3. Remove the knock sensor wiring harness connector from knock sensor.
4. Remove the knock sensor from engine block.

Installation Procedure

Important: Do Not apply thread sealant to sensor threads. The sensor is coated at factory and applying additional sealant will affect the sensor's ability
to detect detonation.

1. Install the knock sensor into engine block.
2. Install the knock sensor wiring harness connector to the knock sensor.
3. Lower the vehicle.
4. Disconnect the negative battery cable.

Sensors and Switches - Restraint Systems > < General Information|Page 2905