Knock Sensor: Service and Repair

Knock sensor (KS), replacing

Removal and Installation

Note! As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information in the illustrations is always correct.

Removing the knock sensor (KS)
Disconnect the battery negative lead. First read Battery, disconnecting Battery Disconnecting.




Remove the intake manifold and gasket. See Intake pipe/gasket, replacement Intake Pipe/Gasket, Replacement.

Remove:
- the screws for the knock sensors (KS)
- the tie strap at the connector. Pull the sensors downwards and past the starter motor bracket at the rear edge.

Installing knock sensors (KS)





Caution! Tighten to the correct torque. If the knock sensor is over-tightened it may deform. If it is too loose it may disrupt the function of the sensor.

Install the new sensors with the screws in the cylinder block.
Route the cables on the outside of the starter motor bracket.
Align the sensors (looking from the front). The cable from the sensor at cylinder 3 = 3 o'clock and from the sensor for cylinder 5 = 6 o'clock.
Tighten the knock sensors. See Tightening torque Tightening Torque.
Press the knock sensor (KS) connectors together. Check that the wiring is in the correct position. Use a clamp if necessary.
Install the intake manifold. See Intake pipe/gasket, replacement Intake Pipe/Gasket, Replacement.
Connect the battery lead. See Battery, disconnecting Battery Disconnecting.