Oxygen Sensor Replacement Estimate for Pontiac G8

Pontiac G8 Oxygen Sensor Replacement costs $184 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$176 to $205
Labor: $70 -$80
Parts: $106 -$125
Average Dealer price
$304 to 343
Average Shop price
$215 to 239
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CarServiceYourMechanic PriceShop/Dealer Price
2009 Pontiac G8V8-6.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$184.13Shop/Dealer Price$227.18 - $323.67
2008 Pontiac G8V8-6.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$182.02Shop/Dealer Price$224.61 - $319.57
2009 Pontiac G8V6-3.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$202.39Shop/Dealer Price$250.03 - $360.24
2008 Pontiac G8V6-3.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$202.39Shop/Dealer Price$250.05 - $360.27
2008 Pontiac G8V6-3.6LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$204.89Shop/Dealer Price$253.14 - $365.20
2008 Pontiac G8V8-6.0LService typeOxygen Sensor - Front/Upper/Upstream ReplacementYourMechanic Price$184.13Shop/Dealer Price$227.18 - $323.67
2009 Pontiac G8V8-6.0LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$184.66Shop/Dealer Price$227.93 - $324.88
2009 Pontiac G8V8-6.2LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementYourMechanic Price$182.02Shop/Dealer Price$224.61 - $319.57
Show example Pontiac G8 Oxygen Sensor Replacement prices

Parts required for a Pontiac G8 Oxygen Sensor Replacement

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432 reviews
Patrick
22 years of experience
This was a third appointment with Patrick ... an inspection for my wife's car. Very worthwhile! Patrick great, as usual.
2007 PONTIAC TORRENT - CAR IS OVERHEATING INSPECTION
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283 reviews
Patrick
27 years of experience
Patrick did a great job he is a very well qualified mechanic. And he is most pleasant to work with very courteous and helpful. We had one oxygen sensor that the GM company sent us that was the wrong plug and part. Patrick noticed it right way and I had to reschedule him to come back when I receive the replacement. WILLIAM L CRAYTON William L Crayton
1998 PONTIAC FIREBIRD - OXYGEN SENSOR REPLACEMENT (FRONT/UPPER/UPSTREAM, REAR/LOWER/DOWNSTREAM)
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268 reviews
Richard
16 years of experience
Very satisfied
1998 PONTIAC GRAND PRIX - SPARK PLUG REPLACEMENT
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44 reviews
Tim
25 years of experience
Friendly , Knowledgeable and Professional........ He will be my mechanic from this day on.
1993 PONTIAC GRAND AM - IGNITION SWITCH 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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