buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Relays and Modules - Ignition System > < Utility/Van Zoning|Page 8307
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Knock Sensor: Service and Repair

KNOCK SENSOR (KS) REPLACEMENT

REMOVAL PROCEDURE

1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Disconnect the knock sensor wiring harness electrical connector.
3. Remove the knock sensor.

INSTALLATION PROCEDURE

IMPORTANT:  DO NOT apply thread sealant to the sensor threads. The sensor threads are coated at the factory. Applying additional sealant affects
the sensors ability to detect detonation.

1. Install the knock sensor.

NOTE:  Refer to Fastener Notice in Service Precautions.

Tighten the knock sensors to 25 N.m (18 lb ft).

2. Connect the knock sensor wiring harness electrical connector.
3. Lower the vehicle.

Relays and Modules - Ignition System > < Utility/Van Zoning|Page 8307