Your oxygen sensor helps your catalytic converter keep emissions low and the engine running smooth. The fuel and air mixture in your combustion chamber are adjusted by the readings that the oxygen sensor takes. This helps your Buick Lesabre to get its best possible combination of low emissions, fuel economy and maximum power.

How can you tell if it is doing its job correctly? A fuel and air mix that is too “lean” can cause you to experience lower mileage because your gas is passing into the exhaust unburned. Your Buick’s emissions will then go way up.

If your fuel and air mix is too “rich”, it can cause a car to idle roughly and be sluggish. Your spark plugs may also get damaged because of the fitful starts. Either way, it’s not going to go away or get better. Ignore it and be prepared to spend more money on your Lesabre than you want to. We have the oxygen sensors you need to keep your car running like it should in our online catalog. All of our oxygen sensors are in stock and ready to ship to you. An oxygen sensor isn’t a “special order” to us. We are available to you day or night, weekends and holidays. Your local dealership or auto parts store can’t promise you any of that. Don’t you deserve that kind of service? Look over our selection of Buick Lesabre oxygen sensors right now and get the part you need at a price that’s right.Keep your Lesabre running efficiently and smoothly like it was designed to do with a new oxygen sensor today!