Sierra 3500 4WD V8-8.1L VIN G (2006)
Knock Sensor: Service and Repair
Knock Sensor (KS) 2 Replacement
KNOCK SENSOR (KS) 2 REPLACEMENT
REMOVAL PROCEDURE
1. Drain the cooling system/engine block. Refer to Draining and Filling Cooling System in Cooling System.
2. Disconnect the knock sensor electrical connector (3).
3. Remove the knock sensor.
INSTALLATION PROCEDURE
1. Install the knock sensor.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten the sensor to 20 N.m (15 lb ft).
2. Connect the knock sensor electrical connector (3).
3. Fill the cooling system/engine block. Refer to Draining and Filling Cooling System in Cooling System.
