How to Replace Downstream Oxygen Sensor Ford Focus

**Check out the tools we used below. If the video was helpful, please give it a "thumbs up" and consider subscribing to the channel.**

This video goes over how to replace a downstream oxygen sensor (Bank 1 Sensor 2) on a 2014 Ford Focus with a 2.0 motor. This should also be the same process for any (third generation) 2011-2017 Ford Focus with 2.0. An oxygen sensor is used by the engine's computer to determine the correct air to fuel ratio needed so that the engine will run efficiently. There are oxygen sensors before the catalytic converter and sensors after the catalytic converter. The ones before the catalytic converter are called upstream and the ones after the converter are called downstream. This Ford Focus 2.0 has two oxygen sensors,1 before the catalytic converter and 1 after the catalytic converter. This can vary on different models and manufacturers. Some vehicles can have as many as six. You can drive a vehicle with bad O2 sensors for a period of time if you can put up with the poor performance and decreased gas mileage, but over time it will hurt the longevity of your motor and cause failure of your catalytic converter because your motor wasn’t running efficiently as the manufacturer intended. The most common signs of a bad oxygen sensor are a check engine light, decreased fuel economy, hesitation, rough idling, or misfiring.

Tools needed:

Wrench Set – – https://amzn.to/3Qrw1Sj
Oxygen Sensor Sockets -- -- https://amzn.to/2UHCgH4
Socket Set -- -- https://amzn.to/3A1dKAN
Penetrating Lube -- -- https://amzn.to/3dk6VRc
Magnetic Tray -- -- https://amzn.to/3xYA7oF

Parts:

Oxygen Sensor -- – https://amzn.to/45h2LlM

These are the tools we used or something that’s similar. There are many manufacturers and various prices. It's a good idea to buy the better tool with the best warranty and easiest exchange in case of tool failure.
Disclaimer:

The Auto Teacher assumes no liability for property damage or injury that happens as a result of any of the information contained in this video. Any information learned from this video is to be used at your own risk. The Auto Teacher recommends safety first! Protective gloves, safety glasses and jack stands are highly recommended. These tutorials are made strictly to help people with their car projects and are given to provide factual information we’ve learned over the past 40 years working on cars. We do not guarantee any particular result or any particular warranty. Any injury, loss or damage contained by the viewer while attempting to follow the video’s instructions is solely the viewer’s fault and not The Auto Teacher.

Видео How to Replace Downstream Oxygen Sensor Ford Focus канала The Auto Teacher