Grand Prix V6-191 3.1L VIN M SFI (1998)
Knock Sensor: Service and Repair
REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Raise the vehicle.
3. Remove the knock sensor wiring harness connector from the knock sensor.
4. Remove the knock sensor from engine block.
INSTALLATION PROCEDURE
IMPORTANT: Do Not apply thread sealant to sensor threads. The sensor is coated at factory and applying additional sealant will affect the sensor's
ability to detect detonation.
1. Install the knock sensor into engine block.
2. Install the knock sensor wiring harness connector to the knock sensor.
3. Lower the vehicle.
4. Disconnect the negative battery cable.