Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Knock Sensor: Service and Repair

Removal Procedure
1. Remove the intake manifold.
2. Disconnect the knock sensor electrical connector.
3. Remove the knock sensor.

Installation Procedure
1. Install the knock sensor. Tighten the knock sensor to 19 Nm(14 lb ft).
2. Connect the knock sensor electrical connector.
3. Reinstall the intake manifold.