buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Manifold Pressure/Vacuum Sensor > < Knock Sensor|Diagrams|Connector Views|Page 2211
Page 1
background image

Knock Sensor: Service and Repair

KNOCK SENSOR (KS) REPLACEMENT

REMOVAL PROCEDURE

1. Turn OFF the ignition.
2. Raise the vehicle. Refer to Vehicle Lifting.
3. Disconnect the wiring harness connector from the knock sensor.
4. Remove the knock sensor from the engine block.

INSTALLATION PROCEDURE

1. Install the knock sensor into the engine block.

NOTE:  Refer to Fastener Notice in Service Precautions.

IMPORTANT:  DO NOT apply thread sealant to the sensor threads. The sensor threads are coated at the factory and applying additional sealant
affects the sensor's ability to detect detonation.

Tighten the knock sensor to 19 N.m (14 lb ft).

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

Manifold Pressure/Vacuum Sensor > < Knock Sensor|Diagrams|Connector Views|Page 2211