Where is the o2 sensor located?

1989 OLDSMOBILE CUTLASS
60,000 MILES • 2.8L • V6 • 2WD • AUTOMATIC
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DENNISLA365
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  • 1 POST
i have a bad O2 sensor but can find specifics about the location.
Feb 25, 2022 at 12:14 PM
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SQM
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 6,383 POSTS
Hello,

The oxygen sensor is located on the back of the engine, at the base of the exhaust manifold.

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

I have attached a diagram showing the location and replacement steps.

Please let me know if you have any questions.
Thank you.
Feb 25, 2022 at 12:35 PM