Knock Sensor Replacement - Bank 1 for Buick Terraza Ext. 2006

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the radiator air baffle. Refer to Radiator Air Baffle Assemblies and Deflectors .
3. Disconnect the engine harness electrical connector (1) from the knock sensor.



4. Loosen and remove the bank 1 knock sensor (1).

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.

Notice: Refer to Fastener Notice in the Preface section.




1. Install and tighten the bank 1 knock sensor (1).

Tighten
Tighten the sensor to 25 N·m (18 lb ft).




2. Connect the engine harness electrical connector (1) to the knock sensor.
3. Install the radiator air baffle. Refer to Radiator Air Baffle Assemblies and Deflectors .
4. Lower the vehicle.