How do you replace the front oxygen sensor on a 2001 Subaru Forester?

Answer 1

The simplest and most direct answer is to 1) remove old one, and 2) install new one. Oxygen sensor is on the exhaust at the front of the front catalytic converter. It is on the top side so it is not easy to access from under the hood or under the car, but you will likely end up removing it from the underside. Most auto parts stores have a set of sockets that they will lend. The job isn't hard, but it is frustrating since you can see the thing from under the hood and you can easily touch it from under the car, but it is darned difficult to get the tools in there and then get enough leverahe and swing to remove it. Good luck! --Ken