Operation CHARM: Car repair manuals for everyone.

Knock Sensor: Service and Repair




Knock Sensor (KS)

NOTE: 6.8L shown, 4.6L and 5.4L similar.











Removal and Installation

1. Remove the intake manifold. For additional information, refer to Engine - 4.6L (2V) Removal and Replacement for 4.6L, Engine - 5.4L (2V) Removal and Replacement for 5.4L or Engine - 6.8L Removal and Replacement for 6.8L engines.

2. Disconnect the Knock Sensor (KS) electrical connector.

3. Remove the bolt and the KS.
- To install, tighten to 25 Nm (18 lb-ft).

4. To install, reverse the removal procedure.