Knock Sensor (Ks): Removal & Installation (4.2L Engine) - Chevrolet Trailblazer Service Manual

Knock Sensor (KS)
Removal & Installation
4.2L Engine
To Remove:
1. Lift the vehicle.
2. Disconnect the knock sensor (KS) connectors.
3. Detach the knock sensors (KS) from the engine block.
To Install:
1. Attach the knock sensors (KS) to the engine block. Torque the sensor to 18 ft-lb
(25 Nm).
2. Connect the knock sensor (KS) connectors.
3. Lower the vehicle.
Knock sensor (KS) removal and installation