buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Sensors and Switches - Restraint Systems > < General Information|Page 2111
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Knock Sensor: Service and Repair

Knock Sensor

REMOVE OR DISCONNECT

1. Negative battery cable.
2. Knock sensor wiring harness connector from knock sensor.
3. Knock sensor from engine block.

INSTALL OR CONNECT

NOTE:  Do Not apply thread sealant to sensor threads. Sensor is coated at factory and applying additional sealant will affect the sensors ability to
detect detonation.

1. Knock sensor into engine block. Be sure threads are clean.

Tighten
Sensor to 19 Nm (14 lb. ft.).

CAUTION:  Overtorquing can damage knock sensor.

2. Knock sensor wiring harness connector to the knock sensor.
3. Negative battery cable.

Sensors and Switches - Restraint Systems > < General Information|Page 2111