How to Replace Downstream Oxygen Sensor 2011-19 Ford Police Interceptor Utility

The downstream O2 sensor is located right here and there's also one on the back located right there. So we're gonna replace this one. Disconnect the connector, push down on the tab, and slide the connector out just like that. There's the tab. Now I'm gonna use an O2 sensor socket. This is a 7/8 and it's got a slot in it for the wire. Slide that on, take it off, slide that out. Take the new O2 sensor, and just start it by hand. That's good. And then we'll tighten this up. And I'm gonna torque this to 35 foot-pounds. Then take the connector and connect it, lock it in place.