Oxygen Sensor Replacement Estimate for Oldsmobile Firenza

Oldsmobile Firenza Oxygen Sensor Replacement costs $118 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$94 to $146
Labor: $70 -$112
Parts: $24 -$34
Average Dealer price
$141 to 198
Average Shop price
$113 to 159
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CarServiceYourMechanic PriceShop/Dealer Price
1986 Oldsmobile FirenzaL4-2.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$134.49Shop/Dealer Price$163.95 - $206.56
1985 Oldsmobile FirenzaV6-2.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$123.44Shop/Dealer Price$150.23 - $184.63
1987 Oldsmobile FirenzaV6-2.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$105.82Shop/Dealer Price$129.32 - $167.09
1987 Oldsmobile FirenzaL4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$95.44Shop/Dealer Price$116.37 - $146.37
1986 Oldsmobile FirenzaL4-1.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$123.92Shop/Dealer Price$150.75 - $185.45
1988 Oldsmobile FirenzaL4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$95.92Shop/Dealer Price$116.92 - $147.25
1985 Oldsmobile FirenzaL4-1.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$124.04Shop/Dealer Price$151.00 - $185.87
1985 Oldsmobile FirenzaV6-2.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$133.82Shop/Dealer Price$163.19 - $205.37
Show example Oldsmobile Firenza Oxygen Sensor Replacement prices

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Steven
9 years of experience
Steven was fantastic! He finished it in half the time that was suggested, and he charged me a lot less. He let me know about any other issues that might be wrong, and he was super friendly. Definitely looking for his help again in the future.
1996 OLDSMOBILE 98 - RADIATOR HOSE REPLACEMENT (LOWER, UPPER)
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12 years of experience
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1997 OLDSMOBILE SILHOUETTE - OIL/FLUID LEAK INSPECTION
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1994 OLDSMOBILE CUTLASS SUPREME - EXTERIOR DOOR HANDLE REPLACEMENT (DRIVER SIDE FRONT)
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Terry
20 years of experience
Terry was amazing, showed up 10 minutes early and got the job done quickly and efficiently. He was very friendly and glady answered any and all questions I had for him offering easy solutions that I would be able to do myself. I will be calling Terry for all my cars mechanical needs.
2003 OLDSMOBILE ALERO - WINDOW MOTOR / REGULATOR ASSEMBLY REPLACEMENT (DRIVER SIDE FRONT, PASSENGER SIDE FRONT)
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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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