Where are the oxygen sensors located?

Tiny
MACKDADDY07
  • MEMBER
  • 1994 OLDSMOBILE CUTLASS
  • 3.4L
  • V6
  • 2WD
  • AUTOMATIC
  • 116,000 MILES
Can't find oxygen sensors?
Wednesday, April 30th, 2025 AT 1:05 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 51,603 POSTS
The oxygen sensor is at the rear of the engine on the right-side exhaust manifold closest to the firewall. This guide will help walk you through the replacement steps. Check the image below to see the sensor location.

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

Check out the images (below). Please let us know what happens.
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Thursday, May 1st, 2025 AT 10:08 AM

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