Oxygen Sensor Replacement Estimate for Cadillac Seville

Cadillac Seville Oxygen Sensor Replacement costs $120 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$95 to $198
Labor: $70 -$80
Parts: $25 -$118
Average Dealer price
$143 to 328
Average Shop price
$115 to 230
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CarServiceYourMechanic PriceShop/Dealer Price
1986 Cadillac SevilleV8-4.1LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$97.22Shop/Dealer Price$129.43 - $168.91
1993 Cadillac SevilleV8-4.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$148.92Shop/Dealer Price$194.18 - $272.51
2002 Cadillac SevilleV8-4.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$136.19Shop/Dealer Price$178.18 - $246.91
2002 Cadillac SevilleV8-4.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$136.19Shop/Dealer Price$178.22 - $246.98
1990 Cadillac SevilleV8-4.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$114.08Shop/Dealer Price$150.53 - $202.67
1998 Cadillac SevilleV8-4.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$140.03Shop/Dealer Price$182.94 - $254.51
1985 Cadillac SevilleV8-4.1LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$108.73Shop/Dealer Price$143.97 - $192.19
1984 Cadillac SevilleV8-5.7L DieselService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$104.86Shop/Dealer Price$139.11 - $184.40
Show example Cadillac Seville Oxygen Sensor Replacement prices
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Parts required for a Cadillac Seville Oxygen Sensor Replacement

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274 reviews
Noe
31 years of experience
On time & informative about my auto .
1995 CADILLAC SEVILLE - CAR IS NOT STARTING INSPECTION
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266 reviews
Grzegorz
36 years of experience
2002 CADILLAC SEVILLE - COOLANT IS LEAKING INSPECTION
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137 reviews
Richard
6 years of experience
He get there on time and ready
2000 CADILLAC SEVILLE - OTHER INSPECTIONS
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William
20 years of experience
Outstanding service!
1992 CADILLAC SEVILLE - SERPENTINE/DRIVE BELT 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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