How to change Oxygen sensors?
Oct 9, 2018 at 10:04 AM
Oxygen sensor replacement
2003 TOYOTA TUNDRA
KWORTERZ
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Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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Hello, I'm Danny.
Your truck has 4 oxygen sensors 2 that are upstream left and right side and 2 downstream left and right side. You would have to provide us with the fault code that is showing which sensor is bad because it is very rare that all 4 sensor would fail at the same time. Here are tutorials showing what is involved for testing and changing oxygen sensors:
https://www.2carpros.com/articles/how-an-oxygen-sensor-works
https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor
https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor
I've attached a few pictures below showing the oxygen sensor locations on your truck. Hope this helps and thanks for using 2CarPros.
Your truck has 4 oxygen sensors 2 that are upstream left and right side and 2 downstream left and right side. You would have to provide us with the fault code that is showing which sensor is bad because it is very rare that all 4 sensor would fail at the same time. Here are tutorials showing what is involved for testing and changing oxygen sensors:
https://www.2carpros.com/articles/how-an-oxygen-sensor-works
https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor
https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor
I've attached a few pictures below showing the oxygen sensor locations on your truck. Hope this helps and thanks for using 2CarPros.
Images (Click to enlarge)
Dec 6, 2020 at 4:17 PM
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