Oxygen Sensor Replacement Estimate for Pontiac G3

Pontiac G3 Oxygen Sensor Replacement costs $232 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$217 to $256
Labor: $77 -$88
Parts: $140 -$168
Average Dealer price
$383 to 438
Average Shop price
$267 to 302
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CarServiceYourMechanic PriceShop/Dealer Price
2009 Pontiac G3L4-1.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$228.75Shop/Dealer Price$282.66 - $408.45
2009 Pontiac G3L4-1.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$255.23Shop/Dealer Price$315.83 - $461.54
Show example Pontiac G3 Oxygen Sensor Replacement prices

Parts required for a Pontiac G3 Oxygen Sensor Replacement

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excellent experience Patrick is a very good mechanic and is courteous and cleans up afterwards and is just a pleasure to work with. I want to keep him as my only mechanic with Our Mechanic. William Crayton
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After the initial repair, James found what caused my belt to go faulty in the first place. In a non pushy way he showed me where the problem was and the possible fix for it or I had the option to leave it as it was. I knew it had to be an issue because I had placed coolant in the car days prior and it was already gone out. I'm glad I took his advice and got the water pump replaced before it became a major issue later on.
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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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