LS V8-3.9L VIN A (2003)
Oxygen Sensor: Service and Repair
HEATED OXYGEN SENSOR (HO2S) AND CATALYST MONITOR SENSOR
EGO Sensor Wrench
SPECIAL TOOL(S)
REMOVAL
1. Disconnect the battery ground cable.
2. With the vehicle in NEUTRAL, position on a hoist.
3. Remove the components in the order indicated in the illustration and table.
Item 2: HO2S and Catalyst Monitor Sensors Removal Note
