Heated Oxygen Sensor (HO2S): Removal

WARNING: This page is about a different car, the 2018 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Removal steps in this procedure may contain installation details.

NOTE: Do not pull the engine appearance cover forward or sideways to remove. Failure to press straight upward on the underside of the cover at the attachment points may result in damage to the cover or engine components.
1. Place your hand under the engine appearance cover at each grommet location and push straight up to release each grommet from the studs.
2. After all of the grommets have been released from the studs, remove the appearance cover from the engine.
Courtesy of FORD MOTOR COMPANY
Remove the air cleaner outlet pipe. Refer to: Air Cleaner Outlet Pipe .
Disconnect the HO2S electrical connector.

Courtesy of FORD MOTOR COMPANY
Apply penetrating oil to sensor, using the special tool remove the HO2S. Use Suggested Tool: 303-476 (T94P-9472-A) Socket, Exhaust Gas Oxygen Sensor. Tool shown or a commercially available equivalent can be used.
Material: Motorcraft® Penetrating and Lock Lubricant / XL-1

Courtesy of FORD MOTOR COMPANY