Install Tip: You may be required to reset the vehicle computer after installation of this part.
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How to Replace Downstream O2 Oxygen Sensor 2000-02 Chevy Suburban
How to Replace Downstream O2 Oxygen Sensor 1999-2006 Chevrolet Silverado 1500
How to Replace Downstream O2 Oxygen Sensor 1999-2006 Chevrolet Silverado 1500
Created on:
Tools used
7/8 Inch Wrench
Flat Blade Screwdriver
Wire Cutters
1. Removing the O2 Sensor
Pry out the clip and pin from the sensor
Disconnect the O2 sensor harness
Cut off the harness connector and sensor with wire cutters
Remove the O2 sensor wire with a 7/8 wrench
2. Installing the New O2 Sensor
Twist on the O2 sensor to the exhaust pipe
Tighten the O2 sensor with a 7/8 wrench
Reconnect the O2 sensor harness
Replace the pin and re-clip the harness to the vehicle
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Don from 1A Auto. I hope this how-to video helps you out, and the next time you need a part for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace a downstream O2 sensor on this 2002 Chevy Suburban. We show you on the passenger's side, but the driver's side has a similar procedure. You'll need a new downstream O2 sensor from 1AAuto.com, a flat blade screwdriver, a 7/8"� wrench, and some wire cutters.
To start off, we're going to show you where your O2 sensors are. On this side, on the driver's side, it's the Bank 1, Sensor 1. This is Bank 1, Sensor 2. This is on the passenger side: Bank 2, Sensor 1 and Bank 2, Sensor 2. Both Sensor 1s are your upstream, and both Sensor 2s are your downstream. We're going to do Bank 2, Sensor 2, which is the passenger side downstream O2 sensor.
You just want to pry out this clip, pull the harness down, pull out that pin, then pry up the tab, and disconnect the harness. Use your wire cutters to cut off the harness connector at the bottom of your O2 sensor. We do this so we can get the closed end of the wrench onto the O2 sensor. Now slide your 7/8-inch wrench into place and using another wrench for leverage you want to pry it and break it free, and then twist it out the rest of the way. We'll fast-forward as Don does this.
Obviously, we have the vehicle up on a lift, but, actually, there's enough clearance on these vehicles that you don't even need to jack them up to do this. On the left is the old downstream O2 sensor; on the right is the new one from 1AAuto. You can see they're going to fit exactly the same.
Take your new downstream O2 sensor, feed it into place, and just twist it in. I'll fast-forward as Don does this and then tightens it up with the wrench. Now just reconnect your harness and then push that pin back into place. Then re-clip the harness to the vehicle. You're all set.
We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
Tools used
Gloves
Jack Stands
Wheel Chocks
22mm Wrench
Floor Jack
Safety Glasses
Tools used
Gloves
Jack Stands
Wheel Chocks
22mm Wrench
Floor Jack
Safety Glasses
AFS106
In Stock
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Customer Q&A
is this for driver, passenger side or either?December 8, 2017
Kevin B
10
Either side post cat. Meaning after the catalytic converter. Hope this helps.
December 8, 2017
Edward M
10
This will be for either side downstream application.
December 8, 2017
Alex P
Description says upstream or downstream. So will this work for all 4 areas? Passenger front and rear, driver front and rear? Prior question only seems to be for rear not front.October 2, 2020
Shea D
10
Hi Shea6975
The upstream (front) and downstream (rear) sensors have different connectors. The connector displayed here if for the downstream. It will not work on all four areas. Just the passenger/driver rear. Hope this helps.
October 2, 2020
Jose M
10
Thank you for your inquiry! The location of the sensor will differ depending on your vehicle. Please feel free to provide your 17-digit VIN so we can confirm which sensor this is for your application. Thank you!
October 2, 2020
Jessica D
Customer service
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