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What is the Life Expectancy of an Oxygen Sensor?

30,000 to 50,000 miles is typical. However, constantly exposed to the harsh environment found in an automobile's exhaust system, the oxygen sensor must sustain a constant barrage of harmful exhaust gases, extreme heat, and high velocity particulates, and that is under normal operating conditions.

Sometimes contaminants such as coolant, oil, or silicone particulates will find their way to the sensor as well. This contaminates the sensor and renders it inoperable. An oxygen sensor's life is long in some applications up to 100,000 miles, but whether by contamination or normal use, its effectiveness will inevitably decrease over time.

At Walker Products, we recognize the need to keep vehicles running clean. A bad oxygen sensor can cause unacceptable emission levels, affect performance, and ultimately damage the catalytic converter. Make it a point to check oxygen sensors at each tune-up and replace faulty sensors with a new Walker oxygen sensor.

For the end user and repair shops performing a vehicle tune-up, remove the oxygen sensor and check for these symptoms:

- Lead Poisoning

- Ethylene Glycol (Antifreeze) Contamination

- Rich Fuel Mixture

- Silicone Poisoning

Replace for better performance and a cleaner environment