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

Oxygen Sensor: Service and Repair

EGO Sensor Wrench:






SPECIAL SERVICE TOOL(S)

REMOVAL
1. Disconnect the battery ground cable. For additional information, refer to Battery.







2. Disconnect the Heated Oxygen Sensor (HO2S) electrical connector.







3. Using the special tool, remove the HO2S.

NOTE: If removing the HO2S on a 6.8L engine, raise and support the vehicle. For additional information, refer to Maintenance/Service and Repair.

INSTALLATION
1. To install, reverse the removal procedure.