RepairPal is your advocate for car care advice and guidance

Q: REPLACE OXYGEN SENSOR on 1992 Buick LeSabre

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
how do you replace the oxygen sensors in a buick lesabre?
02 sensor is mounted on the exhaust pipe below the exhaust manifold, it comes with a pigtail that must be protected, disconnect the negative battery cable, disconnect the sensor and replace it make sure not to contaminated the new one. for visual aids sent your request to
It will be much easier to replace if you go the local parts store & buy the O2 sensor socket. It should cost about $10 & could save you a lot of trouble. It has an opening on the side of the socket to allow the wires to go through. O2 sensors can be very stubborn because they sit in the hot exhaust under the car which causes rust. If you can't get it out warm up the car first. The exhuast will be hot but the sensor should come right out.
It is very simple. It is located on top of the exhaust manifold close to the firewall. Just spray with WD40 or equivalent and let set overnight. Should pop right out the next day.
Didn't find what you were looking for?