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How to Replace Downstream O2 Sensor 2008-09 Chevy Equinox

Created on: 2017-01-16

Find out how to replace the downstream O2 Sensor quickly and easily yourself with this short how-to video

  1. step 1 :Removing the O2 Sensor
    • Jack up and secure the vehicle on jack stands
    • Disconnect the O2 sensor connector
    • Remove the O2 sensor with an O2 socket or 22mm wrench
  2. step 2 :Installing the O2 Sensor
    • Remove the cap from the new sensor
    • Install the sensor into the threads as far as possible by hand
    • Tighten the O2 sensor with a 22mm wrench
    • Connect the electrical connector

Tools needed

  • Jack Stands

    22mm Wrench

    Floor Jack

Hi, I'm Mike from 1AAuto. We've been selling auto parts for over 30 years! We're dedicated to delivering quality auto parts, expert customer service, and fast and free shipping, all backed by our 100% satisfaction guarantee. So visit us at 1AAuto.com, your trusted source for quality auto parts.

In this video, we're going to be working with our 2008 Chevy Equinox, 3.4-liter V6. We're going show you how to remove and replace your downstream O2 sensor.

If you like this video, please click subscribe. We have a ton more information on this and many other vehicles. If you need this part for your car, you can follow the link down in the description over to 1AAuto.com.

Here are the items you'll need for this repair: 22mm wrench, jack and jack stands

Raise and support your vehicle. We're using a lift to make it easier to show you what's going on, but this job can easily be done in your driveway or garage at home, on a jack and jack stands.

Disconnect the electrical connector for the O2 sensor. Using an O2 sensor socket or a 22 mm wrench, remove the O2 sensor from the exhaust pipe.

Here we have our old O2 sensor that we removed from the vehicle and our new part from 1AAuto.com. As you can see, these parts have some minor aesthetic differences, but all the major components are the same. We have the same threads and the same socket size. The new harness is actually a little bit longer, but does have the same four pin connector at the end.

If your vehicle is throwing a code for a cat efficiency issue or an air fuel mixture problem, or a code just for a downstream O2 sensor, this part could be at fault. This new part from 1A Auto is going to go in direct fit, just like your original equipment and fix you up right.

Remove the cap that comes on the end of our new sensor. Install it into the threads as far as you can by hand. Finish snugging it up with your 22mm wrench, and reinstall the electrical connector.

Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.

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2011 - 2011  GMC  Sierra 3500 HD
2011 - 2011  GMC  Sierra 2500 HD
2010 - 2010  GMC  Sierra 3500 HD
2010 - 2010  GMC  Sierra 2500 HD
2008 - 2009  GMC  Sierra 3500 HD
2008 - 2009  GMC  Sierra 2500 HD

O2 Oxygen Sensor

O2 Oxygen Sensor TRQ OSA61746

Part Details:

  • 18.11 in
  • Square
  • M18x1.5-6e
  • 22 mm
  • Specific
  • 4
  • 18 mm
  • Threaded
  • Heated
  • Narrow
  • 4
  • 341 mm
  • Female
  • 460 mm
  • Thimble
  • Female
  • Standard Replacement
  • 13.43 in
  • Pressure Contact
  • 0.87 in
  • 0.71 in
$46.95
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