How do you replace the oxygen sensor on a 1999 Subaru Forester?

Answer 1

This question has been asked and answered many times in this forum. Oxy sensors are on the exhaust system, one before and one after the front catalytic converter. Most auto parts stores have a set of sockets they will lend which help, but the oxy sensors are difficult to access due to their location. You will want to do this from under the car. They come out easier when they are hot, but you will need the exhaust cool so you won't burn yourself. Yes that is a contradiction. Be patient and try every tool at your disposal. Eventually you will get the sensor out, or take it to a professional to have done. Follow instructions on the package insert that comes with your new oxygen sensor. Good luck! --Ken