installing rear 02 sensor

[bjoseph04]

Can anyone give me a brief walk through I have to do this tomorrow and I have never done it before all I know is it screws into a hole and connects somewhere

 

[DSMcrazy3]

Simple process. Disconnect(the connection is rather close to the sensor) and unscrew it from the hole

It's a pretty good sized wrench, I can't think of the size right now though. It will be a little tough to break loose at first, considering it hasn't been disconnected ever probably.

 

[bartels903]

Run to autozone (or whatever you perfer) and ask for a 02 sensor socket, it will save your life. Some people say it is easier to do when the car just turned off from running to heat it up, but i never got that mentality because when an object heats up doesn't it expand.

 

[Scott_S]

its a 22mm. easiest way to to heat up the old sensor with a torch and it SHOULD come right out. I emphasize should because it doesn't always work

 

[MelloEclipse]

so time for me to be a newb. what about the front 02 sensor. what all does that take.

 

[zippyshoe]

Installing a front O2 sensor basically follows the same process as installing the rear O2 sensor. As mentioned by bartels903, rent an O2 sensor socket from your local Autozone before you begin. Also, be sure to put some anti-seize compound on the threads of the new sensor before installing - if you purchased a factory replacement, it should already come with anti-seize already applied to the threads.

 

[Apeximprt2nr]

Taking out the front O2 sensor is the same as the rear. Just get an O2 socket and break it loose. Then disconnect the connection on the other end of it. (It's located right below the water neck on the left side of the head).
I would make sure the car is hot, and PB Blast the sensor before you try to break it loose. A breaker bar will do the trick.

Woops, wasn't paying attention when I posted this. I thought you wanted to know how to remove it.

But yeah, once the old was is removed, just plug the new one in the connection, and put antiseize on the threads then torque it down.