Oxygen sensor replacement

Tiny
KWORTERZ
  • MEMBER
  • 2003 TOYOTA TUNDRA
  • 4.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 55,000 MILES
How to change Oxygen sensors?
Tuesday, October 9th, 2018 AT 10:04 AM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
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.
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Sunday, December 6th, 2020 AT 4:17 PM

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