PB or WD40
Heat
I used large crescent wrench with a pipe on the end for leverage
Above socket is good

But remember heat and pipe or breaker bar if you have the O2 socket for leverage

Heat softens the metal. Just watch the guys at the muffler shops they always use a torch. Not as much heat though for the O2 sensor as you would for regular bolts. You can wet a rag and put it over the wires and exposed end of the sensor. That will help it not overheat.

 

 

Well my bad becuz my local shop don't carry any O2 Sockets. Plus if you use your head you can get the O2 sensor off in a few minutes and save a few bucks but whatever...

 

yeah, maybe, but I would rather be safe! 5 bucks is better than a 100 for a new 02 sensor@!

 

I have no problems using alternate methods or saving a few bux, hell I'm all for it, It's the passing of bad info without looking into it that gets me, we have waaaaay to much of that on here.

 

The 02 sockets work, buy one and get a long handle ratchet for some leverage and it will come off.

 

Here's an idea.
Just drive your car into those jiffy lube places and drive over the pit area and loosen it from the bottom.
You can get more leverage standing up.

But whatever is more convenient for you.
.

 

pblaster, the tool above and a breaker bar.

 

^ exactly

 

Thanks for all the responses. I ordered an oxygen sensor socket, and I'll give it another try with PB when the socket thing comes.

 

is that strong enough to take it off? It looks somewhat weak with the slit on the side... But I mean, if they make it, then it must've passed the test.

 

if that break, than i guess your o2 will never going to come off

 

02 socket works, but if you're out of ideas, just do it from the bottom of the car where you use a standard wrench to torque it real good.

you need a long one though.

Get the 02 sensor socket. It makes a world of difference. summit racing sells them for a decent price.

 

if you don't have an o2 socket then use a flare nut wrench, it will give you just as much holding area. then use impact force, don't just pray on it, IMPACT will get it loose, then it's easy. remember, impact, that means tap with a hammer, tap with your fist, tap with something heavy, but impulse... just pulling is gonna bend something else... you need to use a sudden force.

 

i use a torch to heat up the metal around the o2 bung then use an open end wrench and it comes right out.