Greetings to everyone. Today, we are going to replace the O2 sensor on a 2003 Dodge Ram truck. We have our quality replacement sensors with genuine caps. So it would be much easier to connect it to the factory wiring harness. For this you’ll really need a 22mm open-end wrench or one of these neat little open-sided O2 sensor plugs, which can be purchased at any auto parts store. And we’ll just lift the truck off the ground a bit, crawl down, remove the sensors, replace them with new ones, and we should be good to go.Attempting to change an oxygen sensor? View written guide here to make sure you have the tools and equipment necessary. Follow Grade Auto Part Guide

So today, on this truck, we will be replacing 4 sensors as a preventive maintenance measure. We found an error for bank 2, sensor 2 and you can hear it when you read on the internet when you buy your parts. Bank 1 will actually be the driver side of this vehicle, and bank 2 will be the passenger side. In different cars, they refer to these things differently. If you have a front-wheel drive car, it’s actually front and back instead of left and right. That’s why you need to be specific with this when ordering your parts. And if you have any questions, of course, you can call and speak to one of our service representatives and they will help you. Bank 1 and Bank 2, and then you also have a sensor 1 and a sensor 2 in each bank in this case.

So there are 4 sensors in total. By sensor 1 we mean the one that comes before the catalytic converter; And sensor 2 is the one that comes after the catalyst. It has two catalytic converters; One on the driver’s side and one on the passenger’s side. Right now, because we have the easiest access to sensor 2 on the bank 1 side, let’s start there. And we will only use 22mm open end wrench to free it.

And it should be finger tight now and we can go ahead and twist it. Again, if you live in an area where rust is a problem, you’ll want some sort of PB blaster or WD-40 solvent soaking to help soak it up. I’m going to go ahead and now reach the wrench here and go ahead and loosen our other sensor. And it’s going to be a little difficult to see because the connectors are here in the transmission tunnel. And then I’ll put my hand there.

It’s basically a standard clip here where there is a small connector lock that you just need to push down. So those that are there, we’ll push that tab down and take it out. And then we put the new one. Make sure it is installed correctly. Push until it clicks and you’re all set.

Ok, we remove the old sensor and we are going to install the new sensor. And we’re going to start from the top with the Bank 1 sensor. Screw it in, I have my keys. Make sure it is nice and comfortable. simple as that. Get there and plug in. We’ll go to Bank 1 Sensor 2 here. Fix it and catch it. Plug it in here. He is. Then we pass the passenger side along bank 2. Okay, and now we’re going to start with sensor 2 from bank 2 on the passenger side. Putting the key there. Pin it up. sensor out. adjust it. Replace the last of the 4 sensors. Now we are here on sensor 1 of bank 2. get rid of it. bad. key back there. So we go back to our connector. And we are on the way.