Pontiac G6 Oxygen Sensor Replacement at your home or office.

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Oxygen Sensor Replacement Service

How much does a Oxygen Sensor Replacement cost?

On average, the cost for a Pontiac G6 Oxygen Sensor Replacement is $213 with $73 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2006 Pontiac G6V6-3.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$481.12Shop/Dealer Price$566.25 - $813.54
2008 Pontiac G6L4-2.4LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$337.95Shop/Dealer Price$387.77 - $533.12
2006 Pontiac G6V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$506.47Shop/Dealer Price$598.45 - $870.20
2009 Pontiac G6L4-2.4LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$337.95Shop/Dealer Price$387.80 - $533.16
2009 Pontiac G6V6-3.9LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$535.95Shop/Dealer Price$636.77 - $931.74
2009 Pontiac G6V6-3.9LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$506.47Shop/Dealer Price$598.59 - $870.45
2009 Pontiac G6V6-3.6LService typeOxygen Sensor - Rear/Lower/Downstream ReplacementEstimate$535.95Shop/Dealer Price$635.31 - $929.19
2005 Pontiac G6V6-3.5LService typeOxygen Sensor - Front/Upper/Upstream ReplacementEstimate$506.47Shop/Dealer Price$598.45 - $870.20
Show example Pontiac G6 Oxygen Sensor Replacement prices

What is the Oxygen Sensor all about?

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-MATROX-1

When replacing the oxygen sensor remember:

  • Many oxygen sensors are damaged by leaking oil or coolant. If that is the case, the cause of that leak needs to be identified and repaired, or else the replacement oxygen sensor will be damaged as well.
  • New vehicles require specific oxygen sensors, and not the universal sensors that were common prior to 1996.

How it's done:

  • Scan the computer in the car for codes.
  • Inspect for vacuum leaks and holes in the exhaust system.
  • Remove and replace the oxygen sensor if it is bad.
  • Check electrical connections.
  • Check for proper operation of oxygen sensors.
  • Clear diagnostic codes.
  • Test drive car.

Our recommendation:

Keep up with the tune-ups. If check engine light is on, don't drive the car too long without getting it inspected. If check engine light is flashing, pull over and get the car towed to avoid costly repairs. Ask the mechanic to inspect the vacuum hoses and leaks in the exhaust system. If the vacuum hose or exhaust system is leaking, it will display an oxygen sensor fault code. Replacing an oxygen sensor may not fix the problem.

What common symptoms indicate you may need to replace the Oxygen Sensor?

  • Check Engine light is on.
  • Car is getting poor gas mileage.
  • Emission test fails.

How important is replacing the oxygen sensor?

Your vehicle has multiple oxygen sensors, and they all help the car run optimally. The front sensors measure how much oxygen is in the exhaust stream to measure how rich or lean the gases leaving the gas chamber are. The rear sensors measure the oxygen content of the gases as they leave the catalytic converter. The oxygen sensors then relay this information to your vehicle’s electronic control unit, so that it can adjust as necessary. Because cars depend on an ideal fuel-to-air ratio to function optimally, the oxygen sensors are leaned on for engine performance. When your oxygen sensors fail your car will run less smoothly, get worse mileage, and have worse emissions.

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Real customer reviews from Pontiac owners like you.

Excellent Rating

(410)

Rating Summary
387
10
4
1
8
387
10
4
1
8

Ernesto

30 years of experience
28 reviews
Ernesto
30 years of experience
G6 2008 - Check Engine Light is on - Oconomowoc, WI
This was the most pleasant, interesting, educational and satisfying experience I've ever had with a mechanic. He was so thorough and knowledgable of what he was doing to solve the problems of my vehicle. He is a gift to all of us that need help with car problems. I rated Ernesto great because that what he is as a mechanic and as a person. He will be highly recommended by me in the future.

Augustine

10 years of experience
110 reviews
Augustine
10 years of experience
G6 2006 - Starter - Albuquerque, NM
Arrived on time, and quickly exchange the starter. Friendly and helpful. We will call again for further repairs

Bryant

8 years of experience
568 reviews
Bryant
8 years of experience
G6 2005 - Battery will not hold a charge - Indianapolis, IN
I really appreciate bryant he was quick he told me whats wrong and what i meed to do i will be calling for him in the future

Collins

8 years of experience
362 reviews
Collins
8 years of experience
G6 2007 - Tie Rod End - Atlanta, GA
Collins is easy to be around. I kept him company and chatted him out. He responedd very kindly to me

Excellent Rating

(410)

Rating Summary
387
10
4
1
8
387
10
4
1
8
Number of Pontiac G6 services completed
4510+
services done by our mechanics
TOTAL NUMBER OF EXPERT Pontiac MECHANICS
800+
experts on our platform

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