Oxygen Sensor Replacement Estimate for Buick Century

Buick Century Oxygen Sensor Replacement costs $112 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$96 to $164
Labor: $70 -$80
Parts: $26 -$84
Average Dealer price
$146 to 261
Average Shop price
$116 to 188
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CarServiceYourMechanic PriceShop/Dealer Price
2003 Buick CenturyV6-3.1LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$160.78Shop/Dealer Price$198.00 - $276.97
1997 Buick CenturyV6-3.1LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$145.10Shop/Dealer Price$178.46 - $245.73
1990 Buick CenturyV6-3.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$97.99Shop/Dealer Price$119.53 - $151.43
1987 Buick CenturyV6-3.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$97.99Shop/Dealer Price$119.55 - $151.47
2001 Buick CenturyV6-3.1LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$137.43Shop/Dealer Price$168.82 - $230.30
1990 Buick CenturyV6-3.3LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$106.49Shop/Dealer Price$130.13 - $168.39
1986 Buick CenturyV6-3.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$98.65Shop/Dealer Price$120.42 - $152.86
1984 Buick CenturyV6-3.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$105.82Shop/Dealer Price$129.36 - $167.16
Show example Buick Century Oxygen Sensor Replacement prices

Parts required for a Buick Century Oxygen Sensor Replacement

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586 reviews
Joshua
22 years of experience
Thank you Joshua. You sure know what you're doing. The job was completed in a timely manner. Very professional. Your diagnosis and repairs did the job. My mom's car passed smog and is now on the road again. I will be contacting you regarding my 1992 Toyota Pick-up. Thanks again so much.
1997 BUICK CENTURY - EXHAUST GAS RECIRCULATION/EGR VALVE REPLACEMENT
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Dave
18 years of experience
I now have experience with David on two occasions and he is the best mechanic I've had in a very long time. I would recommend him to anyone! And, he's a really nice guy!
1997 BUICK CENTURY - CAR IS NOT STARTING INSPECTION
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268 reviews
Richard
16 years of experience
Richard was very knowledgeable and proficient. Thank you for a job well done.
2002 BUICK CENTURY - CLEAN EGR VALVE
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256 reviews
Jay
32 years of experience
Jay went above and beyond. He is truly a honest professional and darn good mechanic. I would recommend him to anyone. He is the best you can find anywhere.
2003 BUICK CENTURY - INTAKE MANIFOLD GASKETS REPLACEMENT
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All about Oxygen Sensor Replacement

With each new model year, manufacturers are adding more oxygen sensors to better manage engine operation. Some high performance engines have an oxygen sensor for each cylinder as well as one for the rear of each catalytic convertor. The sensors are located either underneath the hood or underneath the car. The oxygen sensors are connected (screwed) to the exhaust pipe, either in front or back of the catalytic converter. The front (upstream) sensors measure the amount of oxygen in the exhaust system. The purpose of the front oxygen sensor(s) is to measure how rich or lean the gases are as the gases exit the combustion chamber. Depending upon whether the exhaust gas is lean (high in oxygen content) or rich (low in oxygen content), the amount of fuel entering the engine is adjusted by the engine management computer to try and maintain an ideal mixture that produces the lowest emissions output from the catalytic convertor. Rear (downstream) sensors are located behind the catalytic converter. The purpose of the rear oxygen sensor(s) is to monitor the oxygen content of the exhaust gases leaving the catalytic convertor. If one or more of the oxygen sensors are faulty, your car may not pass the emissions test. If you drive your car with a faulty oxygen sensor, you may get poor gas mileage and it can damage the catalytic converter.

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