Oxygen Sensor Replacement Estimate for Buick LaCrosse

Buick LaCrosse Oxygen Sensor Replacement costs $197 on average. Following is a breakdown of the labor and parts estimates.

Skip the repair shop - our mechanics come to you
YourMechanic Price
$125 to $402
Labor: $70 -$200
Parts: $55 -$202
Average Dealer price
$203 to 636
Average Shop price
$152 to 460
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
2005 Buick LaCrosseV6-3.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$287.91Shop/Dealer Price$356.90 - $531.23
2008 Buick LaCrosseV6-3.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$217.67Shop/Dealer Price$269.18 - $390.87
2007 Buick LaCrosseV6-3.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$217.67Shop/Dealer Price$269.13 - $390.79
2009 Buick LaCrosseV8-5.3LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$199.85Shop/Dealer Price$246.87 - $355.18
2007 Buick LaCrosseV6-3.8LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$153.00Shop/Dealer Price$188.28 - $261.43
2010 Buick LaCrosseV6-3.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$220.45Shop/Dealer Price$272.58 - $396.31
2005 Buick LaCrosseV6-3.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$221.15Shop/Dealer Price$273.54 - $397.86
2012 Buick LaCrosseL4-2.4L HybridService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$140.00Shop/Dealer Price$172.09 - $235.53
Show example Buick LaCrosse Oxygen Sensor Replacement prices

Parts required for a Buick LaCrosse Oxygen Sensor Replacement

Meet some of our expert Buick mechanics

Real customer reviews from Buick owners like you.

586 reviews
Joshua
22 years of experience
2011 BUICK LACROSSE - AC CONDENSER REPLACEMENT
Want Joshua's expert advice? Ask your question now. Its free!
274 reviews
Noe
31 years of experience
Noe went above and beyond the service I requested (oil change and tire rotation). He gave my car a thorough inspection, and took detailed images of several areas I need to put additional maintenance into. He was fast too - in and out in less than an hour! Thank you Noe for an excellent job!
1999 BUICK CENTURY - OIL CHANGE
Want Noe's expert advice? Ask your question now. Its free!
192 reviews
Rocco
17 years of experience
I had great experience. I will definitely book Rocco when I need mor work done on my car.
2007 BUICK LUCERNE - COOLANT IS LEAKING INSPECTION
Want Rocco's expert advice? Ask your question now. Its free!
66 reviews
Kyle
8 years of experience
VERY PROFESSIONAL.
2011 BUICK REGAL - OTHER INSPECTIONS
Want Kyle'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 Buick Models