How do you replace the oxygen sensor on a 1997 Jeep Wrangler?
Unplug sensor cable from connector. Use 7/8″ Oxygen Sensor socket, available at most auto supply and tool stores for around $10, to remove the sensor (It’s a deep well with a slot cut up the side to clear the four wires that come out of the end of the sensor) . Insert new sensor using the same socket. The threads should have anti-seize compound already applied to them by the manufacturer. That is adequate. Plug the sensor connector into it’s mate. That one is done. There are two Oxygen sensors on my ’97 Wrangler. One is in the downpipe just after the connection to the exhaust manifold and the other is just after the catalytic converter. Easy to do!
