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How many O2 sensors for my car?

Tiny
J2WICE
  • MEMBER
  • 2011 CHEVROLET MALIBU
  • V6
  • 2WD
  • AUTOMATIC
  • 111,345 MILES
Changed out O2 sensor while I changed out radiator fan. Now check engine light is on so trying to figure out how many O2 sensors there are.
Saturday, July 15th, 2023 AT 3:19 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,940 POSTS
This engine has four oxygen sensors, two primary and two secondary sensors. Here are the locations and how to change them out. Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car:

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

Bank 1 is on the right side of the engine near the firewall. Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Sunday, July 16th, 2023 AT 10:23 AM
Tiny
J2WICE
  • MEMBER
  • 2 POSTS
Thanks, will attempt to get these changed. Appreciate it.
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Monday, July 17th, 2023 AT 6:48 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,940 POSTS
Use 2CarPros anytime, we are here to help. Please tell a friend.
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Monday, July 17th, 2023 AT 11:20 AM

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