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How To Replace Front Upstream O2 Sensor 2000-02 Chevy Cavalier 2-4L
How to Replace Downstream O2 Oxygen Sensor 2000-02 Chevy Suburban
How To Replace Upstream O2 Oxygen Sensor 2000-02 Chevy Suburban
O2 Sensors is it Upstream or Downstream
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Tools used
A Piece of Pipe (for leverage)
Socket Extensions
7/8 Inch Socket
O2 Sensor Socket
Ratchet
1. Removing the Oxygen (O2) Sensor
Pry the grey safety clip off the oxygen sensor wiring harness with a flat blade screwdriver
Disconnect the O2 sensor wiring harness
Remove the O2 sensor with an O2 sensor socket and ratchet
2. Installing the New Oxygen Sensor
Thread the new O2 sensor into the exhaust manifold
Tighen the O2 sensor with an O2 sensor socket and ratchet
Connect the O2 sensor wiring harness
Push the wiring harness safety clip into place
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 next time you need parts for your vehicle, think of 1AAuto.com. Thanks.
In this video, we're going to show you how to replace the front oxygen sensor on a 2.2 liter model year 2000 Chevy Cavalier. In order to do this you'll need a new oxygen sensor from 1A Auto, as well as a 7/8 inch wrench, and, if you have one, it might help you to use a 7/8 oxygen sensor socket, as well as an extension and socket wrench.
Locate the front oxygen sensor right there in the front, exactly on the exhaust manifold, and then its harness that goes to the clip. I'm using a pocket screwdriver to pry off, or pry out that grey portion of the connector that's just kind of a safety lock on the connector so it doesn't come loose and then once I've got that pried out of the way I'll press in on the center of that tab to release it. I'm using a 7/8 inch oxygen sensor socket on the end of an extension and I'm going to use a socket wrench. I'm actually going to need a pipe that's going to go over the end of that socket wrench so I can get a little bit more leverage on it just to break it free, and I'm going to go ahead and fast forward as I unscrew that. You can see here the oxygen sensor as I pull it out.
Going back in with the oxygen sensor I'm going to seat it in the threads and then use the socket to turn it in and tighten it, and I'm going to go ahead and fast forward as I tighten up that oxygen sensor. Plug the connector back in and press in on the grey clip.
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
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
Flat Blade Screwdriver
Wire Cutters
7/8 Inch Wrench
1. Removing the Upstream O2 Sensor
Identify the upstream and downstream O2 Sensors
Clip the harness pin with wire cutters from the upstream harness
Disconnect the upstream harness
Pry and separate the clip from the upstream sensor with a flat blade screwdriver
Pull the O2 sensor wire free from the clips
Cut the harness connector with wire cutters
Remove the O2 sensor with a 7/8 wrench
2. Installing the New Upstream O2 Sensor
Feed and twist the new upstream O2 sensor into places
Tighten the O2 sensor with a 7/8 wrench
Push the harness over the frame and reconnect the clip
Connect the harness and push the pin in place
Re-clip the harness into the bracket
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 an upstream O2 sensor on this 2002 Chevy Suburban. We show you on the passenger's side, but the driver's side is a similar procedure. The items you'll need for this include a new upstream O2 sensor from 1AAuto.com, a flat blade screwdriver, 7/8 inch wrench, and a pair of wire cutters.
To start off, we're going to show you where your O2 sensors are. The driver's side is bank one and this is bank one, sensor one and bank one, sensor two. On the passenger's side, you have bank two, sensor one and bank two, sensor two. Both sensor ones are the upstreams, and both sensor twos are the downstreams. We're going to show you on bank two, sensor one.
The harness is on the other side of this frame. You just want to just clip the harness pin, pull the harness free, and disconnect it. Just pull the tab, pull it free, and then you want to pry at this clip with a flat blade screwdriver and separate it. You want to pull your O2 sensor wire free from that clip and then cut the harness connector at the end from the harness.
Two notes: this is going to allow you to get the closed end of the wrench over the harness and also you can do this without having to jack up the vehicle; the clearance is good enough on these vehicles to get underneath.
Now, using your 7/8 inch wrench, just slide it up into place on the O2 sensor, and, using another wrench for leverage, just break it free. Then loosen it up the rest of the way with the wrench and remove it. We'll just fast-forward as Don does this.
On the left is the old upstream O2 sensor; on the right is the new one from 1A Auto. You can see they're going to fit exactly the same. Feed your new upstream O2 sensor into place and just twist it in. We'll fast-forward as Don does this and then tightens it up with the wrench.
Now put your harness back over the frame and reconnect it into that clip. Then pull it over the other side, reconnect the harness, and push that pin back into place. Then re-clip the harness up here into this bracket, and 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
No Tools Needed
1. Identifying your Oxygen Sensors
Upstream oxygen sensors are located in between the engine and the catalytic converter
Downstream oxygen sensors are located in the catalytic converter or farther away from the engine than the catalytic converter
Locate your vehicle's firing order diagram
The bank that contains cylinder one is bank one
The bank that does not contain cylinder one is bank two, even if it does not contain cylinder two
Hi, I'm Mike from 1A Auto. We've been selling auto parts for over 30 years. We're dedicated to delivering quality auto parts, expert customer service, fast and free shipping, all backed by our 100% satisfaction guarantee. Visit us at 1AAuto.com, your trusted source for quality auto parts.
In this video I have a couple of oxygen sensors with me. While there are some aesthetic differences here, the wire lengths are a little different, the actual body and tip of the sensor are a little different, the threads and gasket are the same, and on the other end the connections are actually the same. I can plug these into either position on our vehicle. But if I had to ask you which one's upstream and which one's downstream, you probably can't tell just from looking at them. That's true of most oxygen sensors. The way you determine whether or not an O2 sensor is upstream or downstream is all done visually.
Your oxygen sensor position can be determined relative to your catalytic convertor. As the name suggests, upstream sensors will be located upstream or ahead of, in front of, above, closer to the engine than your catalytic convertors. This means that they see the exhaust gasses first. They then go through the catalytic convertor and to the downstream oxygen sensor, which will either be located in the catalytic convertor like our vehicle here, or after the catalytic convertor to monitor the gasses coming out of the cat and make sure that it's being efficient relative to the readings of the upstream O2 sensor.
The other determination you need to make is bank one versus bank two. Determining which bank is which can be done by looking at a picture of your vehicle's firing order. Whichever bank contains cylinder one is going to be bank one, and the other one, regardless of whether or not cylinder two is in it, is going to be bank two by default. These banks are true of V engines like V8s, V6s, and flat engines like Porsches and Subarus that have individual banks.
On inline four-cylinder engines, as long as they have one exhaust manifold like a Jeep four-liter or a four-cylinder Honda engine, you'll only have one bank with an upstream and downstream O2 sensor. There will be no bank two on the engine.
On our vehicle here, this is the passenger side, which we've already determined from the firing order is bank one. We have our upstream sensor here closest to the engine ahead of the cat. Then we have our downstream or sensor two here inside of the catalytic convertor. This could also be located somewhere after the cat. Here I have my two sensors for the vehicle. While they are aesthetically different, we can now tell this is my upstream sensor because it looks just like the upstream sensor I have up there. This is my downstream sensor. Now that we know which one's which, we can order the right part, correct the problem, and fix you up right.
Thanks for watching. Visit us at 1AAuto.com for quality auto parts, fast and free shipping, and the best customer service in the industry.
AFS75
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OEM O2 Sensor
Alex
March 8, 2021
Got OEM O2 sensors! Came with copper anti seize and easy to install!
Marilyn
September 28, 2024
Perfect , exactly as described.
Customer Q&A
Will a bad o2 sensor cause a slight hesitation when accelerating?August 24, 2016
Kevin B
Does this fit Canna models?September 21, 2021
Ricky W
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