How Long Does an Oxygen Sensor Last? | YourMechanic Advice

How Long Does an Oxygen Sensor Last?

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Today’s automotive exhaust systems are much more complex than they once were. They must be in order to comply with much stricter environmental controls and the requirement to create less pollution. Your car’s exhaust includes many different components that must work in hand in hand to reduce emissions and enhance fuel economy. One of those is the oxygen sensor.

Depending on the make and model you drive, you could have one, two or even more oxygen sensors located throughout the exhaust system. This sensor does pretty much what the name implies – it measures the amount of oxygen in the exhaust and sends this information to the car’s computer. The computer then determines if the engine is running too rich (too much gas) or too lean (too much air) and adjusts to compensate.

Your oxygen sensor (or sensors) fit into the exhaust pipe. The most common location is just ahead of the catalytic converter, but some also have a sensor in the exhaust manifold on the engine itself. No matter where it is located, the sensor is exposed to immensely high temperatures any time the engine is running (and the sensor operates as long as the engine’s running, even if you’re just parked and idling).

In addition to high heat, the sensor can be affected by other things, including contaminants in the exhaust, excessive amounts of unburned fuel in the system and more. Generally speaking, your oxygen sensor should last somewhere between 50,000 and 60,000 miles. However, if your engine is properly maintained, the sensor(s) may last much longer, up to the life of the vehicle. On the other hand, if the engine is not properly maintained, the sensor could fail well before that point and the sensor will have to be replaced.

If the sensor fails, you’ll experience a number of problems, ranging from rough engine operation to not passing your emissions test. Given the importance of this sensor, it’s vital that you know a few of the common signs to watch for that indicate it is either failing or has already failed. These include:

  • The Check Engine Light is on
  • The engine idles rough, or sputters when letting off the gas pedal
  • Reduced fuel economy
  • Loss of power from the engine
  • Sluggish engine operation

If you’re experiencing any of the symptoms above, it’s important to have your car inspected and the oxygen sensor (or sensors) replaced if necessary.


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Recent Oxygen Sensor Replacement reviews

Excellent Rating


YourMechanic Oxygen Sensor Replacement Service

Average Rating

4.9/5

Number of Reviews

1,258

Rating Summary
1,184
43
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16
1,184
43
8
7
16

Breck

19 years of experience
654 reviews
Breck
19 years of experience
Cadillac DTS - Oxygen Sensor Replacement (Front/Upper/Upstream) - Spring, Texas
Best Mechanic In The Business!!! Arrived on time and got the job done quickly. All issues resolved. This guy is amazing!
Mazda 3 - Oxygen Sensor Replacement (Front/Upper/Upstream) - Houston, Texas
Breck was able to replace a worn belt on my vehicle, and drove out to find another sensor needed for the repairs during the service appointment when he discovered he was sent the incorrect item for my car. I will continue to book Breck for future service appointments.

Andrian

31 years of experience
133 reviews
Andrian
31 years of experience
Honda Accord - Oxygen Sensor Replacement (Rear/Lower/Downstream) - Pompano Beach, Florida
Personable, fast, knowledgeable and professional! I felt like I was in good hands. I didn’t have a mechanic and now I know I can count on one. Thank you, Andrian!
Toyota Camry - Oxygen Sensor Replacement (Front/Upper/Upstream, Rear/Lower/Downstream) - Fort Lauderdale, Florida
Performed the work completely in a professional manner. Andrian is a genuine nice guy and your company is very lucky to have him.

John

26 years of experience
630 reviews
John
26 years of experience
Ram 3500 - Oxygen Sensor Replacement (Front/Upper/Upstream) - Pearland, Texas
John does excellent work I want John to do any work that I may need on my vehicle in the future. Thanks John
Isuzu Trooper - Oxygen Sensor Replacement (Front/Upper/Upstream) - League City, Texas
John is the man. Super friendly, keeps you in the loop on everything he’s doing and fixed all my issues quick and under my budget. I will recommend John to everyone I know. Thanks again John.

Pierre

8 years of experience
117 reviews
Pierre
8 years of experience
Hyundai Elantra - Oxygen Sensor Replacement (Rear/Lower/Downstream) - Brockton, Massachusetts
Pierre is the best. He came Friday and today June 1st I passed inspection. He is the best. He saved me $1000. That money I am going to have him do my struts and shocks. Your the best.
Hyundai Elantra - Oxygen Sensor Replacement (Rear/Lower/Downstream) - Brockton, Massachusetts
Pierre is by far the best mechanic I ever had. He explained everything to me. Was thorough and went more than the extra mile to work on my car. I will definitely use Pierre for everything for my car.

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