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
1984 Buick CenturyV6-3.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$106.49Shop/Dealer Price$130.14 - $168.40
1982 Buick CenturyL4-2.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$105.82Shop/Dealer Price$129.36 - $167.17
1987 Buick CenturyV6-2.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$105.82Shop/Dealer Price$129.32 - $167.09
1983 Buick CenturyV6-4.3L DieselService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$105.82Shop/Dealer Price$129.34 - $167.13
1992 Buick CenturyV6-3.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$98.52Shop/Dealer Price$120.18 - $152.46
2003 Buick CenturyV6-3.1LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$160.80Shop/Dealer Price$198.02 - $277.01
1984 Buick CenturyV6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$106.66Shop/Dealer Price$130.44 - $168.89
1988 Buick CenturyV6-3.8LService typeOxygen Sensor - Rear/Lower/Downstream 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. Professional, knowledgeable, courteous. He knows what he's doing.
1997 BUICK CENTURY - CHECK ENGINE LIGHT IS ON INSPECTION
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471 reviews
Peter
38 years of experience
Peter was great! knew what was wrong right away.
2000 BUICK CENTURY - CAR IS NOT STARTING INSPECTION
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Danny
6 years of experience
Another job well done by Danny. This is my second time using these services, and I am very satisfied. Danny had my car up and running again in no time. He is a knowledgeable and very competent mechanic, and also a very nice and friendly person. I will continue to use his services.
1998 BUICK CENTURY - CAR STARTER REPAIR
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59 reviews
Terry
20 years of experience
Terry showed up on time. He was friendly and professional. Inspected and determined repair that was needed. Unfortunately parts house didn't have part in stock(the car is a '91), had to be ordered so could not complete the repair.
1991 BUICK CENTURY - CAR STAYS RUNNING WHEN I SHUT THE KEY OFF INSPECTION
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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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