02 sensor removal

[Shawn1112]

Gotta throw a new 02 sensor on my Denali, going to just replace both sides post cat. They arent that expensive and figure why not just replace both.
I have never ever had any luck removing these fucking things. I have used open ended wrenches, and the socket thats made for 02 removal.
Used that socket on the Cat when I removed the cats and completely destroyed the 02 and the threads in to the mid pipe. So will have to re-tap if I ever throw the cats back on.

So what's the trick is it heat, use an impact with the 02 socket, oil penatrater
All of the above? Velasquez will do it for $80, but fuck that rather do it myself and save the $80.

Click to read more...

 

[Yaj Yak]

 

[FESTER665]

I always use the closed end of a wrench, slip the connector through it and wrap it around the sensor... Then use anti-sieze on the new one going in....

 

[Chester Copperpot]

Yeah, I've always just used the closed end as well. Heat and a lot of torque. 4' cheater bar on 7/8-13/16 wrench. I swear they put those O2s in with a 400ftlb impact at the factory.

 

[cdh027]

penetrating oil spray is your friend.

 

[boostedguy05]

yup. tons of liquid wrench. spay let it sit, spray let it sit, spray let it sit, spray and go to town. use as long of a bar as you can. i have an 18 inch (i think is 1/4 drive) breaker bar if you need.

 

[Shawn1112]

yup. tons of liquid wrench. spay let it sit, spray let it sit, spray let it sit, spray and go to town. use as long of a bar as you can. i have an 18 inch (i think is 1/4 drive) breaker bar if you need.

I have a pretty decent size bar, but will let you know if I need to borrow yours.

 

[boostedguy05]

sounds good. i'm just a few minutes away. shoot me a text whenever if needed.

its nothing special, just a HF breaker with pivot head.

pretty sure its this one. 3/8 head if it is.

https://www.harborfreight.com/38-in-drive-17-in-breaker-bar-67931.html

 

[CMNTMXR57]

Penetration oil... I just had to use that word.

I use both the special sockets, as well as wrenches, it just depends on how much space is available.

 

[LikeABauce302]

I guess I've been lucky and haven't ever really struggled with an O2 sensor. If the sensor is junk, I wouldn't hesitate to just cut the pig tail off of it and put a regular impact socket over it and use an impact gun. I've never had to go that far though. They always come free for me with penetrating oil, a breaker bar, and an O2 socket. If you have room, you can put a hose clamp around the O2 socket, once it's over the sensor, to help prevent it from spreading.

 

[1quick]

if its junk I cut the wires off and use a closed end wrench, few taps with mini sledge and give it hell

 

[CMNTMXR57]

That was another suggestion I was going to make, hold the wrench steady and a few light taps usually work wonders instead of loading up the wrench with 100ft/lb of torque as you try to muscle it loose. It's just the heating/corrosion holding it up, so a few taps will break that "bond".

 

[Mr_Roboto]

fuck the special socket you're putting in a new one. I tend to lop the cord off and put a box end on it, if I have to I'll use a cutoff wheel on the top and stick a bar/socket on the net. Cheater pipe is your friend regardless. The only way they could make em more of a pain in the ass is to MIG em in.

 

[LikeABauce302]

Also, try tightening before loosening. For whatever reason that usually works.

 

[Pewter-Camaro]

And once you wrestle with the rear O2’s and get them replaced and still get rear O2 codes.., refer to post #2.

 

[Handsome Jesus]

Liquid wrench and lots of heat with a 6pt socket on it. Grunt away!

 

[Mr_Roboto]

And once you wrestle with the rear O2’s and get them replaced and still get rear O2 codes.., refer to post #2.

 

[DEEZUZ]

What is the status

 

[Ron Vogel]

None of those o2 tools work on everything, some work on nothing. I've had to make a few special wrenches...sacrificing my 7/8" wrenches to the tool gods. if you have a new o2 to pop on absolutely cut the pig tail off...more options

 

[Mr_Roboto]

oh and if you're hitting this thing with a wrench/bar 6 point is GREALY preferred over 12 point.

 

[Ti28]

Cut the harness off, and 6 point wrench or deep well. Those sockets are a waste of money.

 

[boostedguy05]

What is the status

Postponed, he needed one of these wrenches

 

[DEEZUZ]

Can you get someone to lift it off the shelf for you and ship it to him

 

[boostedguy05]

No need. I can put it in the van and take it t to him.

 

[Shawn1112]

What is the status

Doing it this weekend, way to busy at work this week.
I'm also going to be doing the front speed sensors and might as well do the front brakes since they will be off while replacing speed sensors.