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.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$94 to $146
Labor: $70 -$112
Parts: $24 -$34
Average Dealer price
$141 to 198
Average Shop price
$113 to 159
Get an instant quote for your car
Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing
Get a quote
CarServiceYourMechanic PriceShop/Dealer Price
1987 Oldsmobile FirenzaL4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$95.92Shop/Dealer Price$116.92 - $147.25
1987 Oldsmobile FirenzaV6-2.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$95.44Shop/Dealer Price$116.39 - $146.42
1985 Oldsmobile FirenzaL4-2.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$133.82Shop/Dealer Price$163.14 - $205.27
1985 Oldsmobile FirenzaV6-2.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$133.82Shop/Dealer Price$163.16 - $205.32
1985 Oldsmobile FirenzaL4-1.8LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$123.92Shop/Dealer Price$150.75 - $185.45
1986 Oldsmobile FirenzaL4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$123.92Shop/Dealer Price$150.72 - $185.41
1985 Oldsmobile FirenzaL4-2.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$124.04Shop/Dealer Price$151.00 - $185.87
1986 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

Meet some of our expert Oldsmobile mechanics

Real customer reviews from Oldsmobile owners like you.

586 reviews
Joshua
22 years of experience
He called me the day of the appointment and said that he had a cancellation and asked if he could come early. I told him that would be great...the sooner he fixed my car, the sooner I'd be back on the road. He did such a great job! When I need more work done on my old car, I hope I can get Joshua. He is excellent....very professional, friendly and does great work!
2000 OLDSMOBILE ALERO - OTHER INSPECTIONS
Want Joshua's expert advice? Ask your question now. Its free!
341 reviews
Honorio
14 years of experience
Honorio was on time, tested for exactly what was needed, and identified the starting issue quickly. Would definitely recommend!
2000 OLDSMOBILE INTRIGUE - CAR IS NOT STARTING INSPECTION
Want Honorio's expert advice? Ask your question now. Its free!
223 reviews
Joe
38 years of experience
Joe was very prompt. Very efficient and courteous. A friendly and knowledgeable person. The whole repair experience was a pleasure.
2001 OLDSMOBILE ALERO - WINDOW REGULATOR REPLACEMENT (DRIVER SIDE FRONT)
Want Joe's expert advice? Ask your question now. Its free!
145 reviews
James
26 years of experience
it was good.
1994 OLDSMOBILE CUTLASS CIERA - ELECTRICAL COMPONENTS ARE NOT WORKING INSPECTION
Want James's expert advice? Ask your question now. Its free!

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.

Oxygen Sensor Replacement Estimates for Popular Oldsmobile Models