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1A Auto Lifetime Warranty
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Part Details
TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is isostatically-pressed for improved strength and durability, and plasma-sprayed to improve sensitivity and prolong the service life of the sensors. Oxygen sensors wear out over time and should be replaced every 60,000 miles to prevent poor engine performance. TRQ recommends replacing the oxygen sensors in sets to optimize fuel economy and reduce overall emissions. All products are fit and road-tested in our Massachusetts R&D facility to ensure we deliver on our promise of Trusted Reliable Quality.
Product Features
What is Upstream vs. Downstream?
Install Tip: You may be required to reset the vehicle computer after installation of this part.
Item Condition:
New
Attention California Customers:
WARNING: This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
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Tools used
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
The O2 sensors are located right here on the exhaust. This one is in front of the converter. And then there's another one in front of this converter. These are the two upstream O2 sensors and then the downstream after the catalytic converter, there's one on the right side, and there's one on the left side. And the procedure to replace these is the same for all of those. Connector is right there, there may be a lock on the connector, you might have to pull that out and then just disconnect the connector, just like that. Then there's a retainer that holds the connector on, just use a trim tool and take that retainer off. Or you might have to cut it, the new one has one. I'll just cut this one off. And just pull that through. And take a 7/8 wrench or you can use a O2 sensor-specific wrench or even a socket and loosen it up, and just loosen that up. And take that out. I'll take the new O2 sensor and get it started. Start it by hand. Then you can tighten this O2 sensor. And do the best you can, if you can fit a torque wrench in there, you wanna tighten that to 31 foot-pounds. And resecure the connector into the retainer. And connect the connector. And then if you have that lock, put that lock through, and then you can do the same with the other O2 sensors.
Tools used
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.
