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Home >> Buick >> 2002 >> LeSabre V6-3.8L VIN K >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Knock Sensor >> Service and Repair >> Knock Sensor (KS) 1 Replacement
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Knock Sensor (KS) 1 Replacement

REMOVAL PROCEDURE




1. Turn OFF the ignition.

CAUTION: Hot engine coolant may cause severe burns. Although the cooling system has been drained, coolant still remains in the engine water jacket. This coolant will dram with the removal of the knock sensor.

2. Drain the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
4. Disconnect the electrical connector (2) from the knock sensor (1).




5. Remove the knock sensor (2) from the engine block (1).

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.

IMPORTANT: DO NOT apply thread sealant to the sensor threads. The sensor is coated at the factory and applying additional sealant will affect the sensor's ability to detect detonation.




1. Install the knock sensor (2) into the engine block (1).

Tighten
Knock sensor to 19 N.m (14 lb ft).




2. Connect the electrical connector (2) to the knock sensor (1).
3. Lower the vehicle.
4. Fill the cooling system. Refer to Draining and Filling cooling System in Cooling System.