Oxygen Sensor Replacement Estimate for Saturn LW2

Saturn LW2 Oxygen Sensor Replacement costs $190 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$190 to $200
Labor: $70 -$80
Parts: $120
Average Dealer price
$333
Average Shop price
$233
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
2000 Saturn LW2V6-3.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$199.70Shop/Dealer Price$246.64 - $354.81
2000 Saturn LW2V6-3.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$197.30Shop/Dealer Price$243.71 - $350.13
Show example Saturn LW2 Oxygen Sensor Replacement prices

Parts required for a Saturn LW2 Oxygen Sensor Replacement

Meet some of our expert Saturn mechanics

Real customer reviews from Saturn owners like you.

283 reviews
Jason
12 years of experience
I especially appreciated his commitment to find the problem and fix it. Keep up the good work, and your guys will grow.
1996 SATURN SL1 - FUEL PUMP REPLACEMENT
Want Jason's expert advice? Ask your question now. Its free!
274 reviews
Noe
31 years of experience
Noe did a great job. When I need service again, I will definately contact hom.
2000 SATURN SL - CAR IS NOT STARTING INSPECTION
Want Noe's expert advice? Ask your question now. Its free!
256 reviews
Jay
32 years of experience
Jay was quick and very professional. Gave me honest advise on other items regarding my vehicle. Very knowledgeable and amicable. Recommend him to anyone!
1996 SATURN SL2 - CAR STARTER REPAIR
Want Jay's expert advice? Ask your question now. Its free!
48 reviews
Juan
5 years of experience
Juan Vargas was very knowledgeable, took the time to answer all my questions. He made helpful suggestions to help keep my fifteen year old car running for a few more years. I am glad to have found yourmechanic.com Thank you Paula. from Ca
1999 SATURN SL2 - SERPENTINE/DRIVE BELT REPLACEMENT
Want Juan'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 Saturn Models