Knock Sensor Replacement for Pontiac GTO 2006

1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
2. Remove the mounting bolt for the knock sensor (KS) 1.
3. Disconnect the electrical connector of the KS from the engine harness (3).
4. Remove the KS  (2) from the engine block (4).

1. Reconnect the engine harness (3) and the KS (2) electrical connectors.
2. Position the KS 2 on the engine block (4).
3. Install the mounting bolt (1) for the KS  2.

Notice: Refer to Fastener Notice in the Preface section.

4. Tighten the KS mounting bolt (1).

Tighten
Tighten the KS mounting bolt to 20 N·m (15 lb ft).

5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.