Jn2

iTrader: (1)

so i got my virbant header and dp in today, and it is a biatch to take the rear o2 sensor out, i took off one bolt from the header, and decided to take the sensors off first, well that second o2 is not coming out easy, it is putting up a dam good ass fight, its pissing me off...its 2:30am and i am trying to install this **** on my car, night crew any idea how to go at it, i have tried WD40, i tried kicking the rachet, pulling it down, pushing it up, none r budging it, 30 mins of trying later, and im right here...this is not the first time i do a header and dp swap i have done ir 4 times now on my car, but this time i dont have my sensors on it, i have the ones from the last guy i traded header and dp with, i got his, and i believe he had 30,000 miles on his,, and what i have had it for, and it has 32,000, mine were so easy to take off, i anti-siezed the all nicely, and pretty, and now im at this point, im just going to cut that dam thing off...and just splice it in when i get a change, cuz i want this thing on now...

outtamymind

have you tried tightening it. that helps in alot of cases to break the seal that it has created. i would try that

Mnatvyc1223

get chuck norris to roundhouse kick the sh*t outta it for u

or take some vice grips, clamp them on tight and find a thick long metal pipe that will sit on the handle and use it as a breaker bar.

06' SS2SS

When I worked on large gen-sets, I used a product called Kroil on exhaust components. It works 10X better than WD-40. It's not very common though, and at 2:30am it isn't much help anyway. Sometimes I think it is more harmful than helpful using anti-seize, sometimes it gets hard and fouls up the threads.

Smitty1017

mine came right out. maybe chuck norris was working at lordstown tightening 02 sensors when your car was built

Jn2

iTrader: (1)

well i gave up, i will retry during the dam day, dammmmm....it looks so damn good, i wanted to put it on right now...i even went theu the trouble of moving 3 cars around to make mine fit int he garage for me to do it...dam...i will have to go and find aplug for the second o2, cuz its not coming out i dont care about a CEL, i just got my inspection, im good ti'll june of 09 tommorow is another day

pacific cobalt

This is a common problem I ran across many times with older used cars I've owned
As a last resort I once had to use a mini-blow torch and Heated up the O2 Sensor Bung until it was really hot
Then Using a large 12" ajustable wrench and Heavy Mallet I went Psycho on it
The impact of the heavy mallet hitting the wrench made a cracking sound and finally loosed up the O2 sensor
Good Luck

Jn2

iTrader: (1)

yeah ima give it another shot, thing is the way i have my second o2 wired up, i can only be taken off whle on the car...the pigtail that connects the harness to the o2 tore, so i had to straight wire it all together...so yeah...next time im using a breaker bar

steddy2112

iTrader: (1)

The stuff is called AeroKroil.

We use it here on some of the bad ass valves at work.

06' SS2SS

Yep, that's the stuff. It works better than anything I have ever used.

rhanes216213

iTrader: (1)

We use aerokroil on the jet engines at work. Another good product that works well is called mousemilk.

Jn2

iTrader: (1)

well i said **** it, i took just cut thw wires off the second o2, left it on the dp, installed the vibrant stuff, and used a junk o2 to put in the bung...that way i dont have a open bung, and i dint have a plug on me so yeah, iim throwing a code, well 3 actually, oh well, i will have trifeca tune them away when i order the tune...also i am about to do something i have wanted to do since i bought the car, after 2 years, im finally going to buy lowering springs, going with tenzo's

REIGN SS

...you could have just disconnected the o2 sensor from where it plugs in about 8" from where it goes into the pipe

Jn2

iTrader: (1)

not a opton fo for me, when i had my old header and dp i accidently wrapped the second o2 wire around the steering shaft thing, i d idnt relize this, when i turned the wheel the first time, snap the connecter rip'd off, and since no one sells a o2 pigtail for our cars, i crawld in the back of the car and used male and female connectors to straight wire them, that worked just fine, but ment i coulndt disconnect it no more, so yeah, unpluggin for me wasnt a option...

also i had o beat the coolant line coming out the therm housing with a 1/2 drive rachet b/c that thing was in the way of the header, i see now why the CA one doesnt fit, lol, nothin a good old beating didnt fix, and in the end i moved it over with out breaking or denting, well i left a mark of the wack i gave it, but nothint hat will interfere with flow, so yeah, good mod, feels great

REIGN SS

oh well... that is FTL

cblt12

mine was a bitch to get out and actually stripped the threads off the o2 sensor the first time i removed it(40k down the road) i finally got it out using a vice, vice grips, and a breaker bar like someone suggested earlier. i had to replace the o2 sensor but it got the job done.

Brian MP5T

So WD40 and an O2 sensor dont play well.. Make sure you get NONE ON THE SENSOR!

Jn2

iTrader: (1)

well make no diffrence, i didnt get it off, no one could get that thing off at work, we tried heating it and than using a breaker bar on it...to no avail...used some PB blaster, didnt help...we heated it with a propane torch...made it nice and red, and nothin...the first o2 came out easy...second is now trash, wel lits good, but it going in the dumspter with the rest of my stock headers and downpipe

2.2AVC

i unplugged them from the harness and pulled my stock setup out so i could have more room to work on them, I sprayed the crap out of them with bolt out stuff, then I waited about 20 minutes, came back and used a wrench and gave it a huge pull and it broke the seal then they just twisted out,

USMCFieldMP

iTrader: (1)

Use PB Blaster... WD-40 is ****.

Oh, and my O2 Sensor was cross-threaded from the factory.

ColeJJones

https://www.cobaltss.net/forums/show...problem&page=5
start reading at post 86. i had this problem. the thread is melted probably and you cant turn it. i manned up and torqued the **** out of it. thats how i got it out

post 113 as well

umrdyldo

iTrader: (1)

and you did buy the 02 sensor removal socket from an auto parts store, correct?

Jn2

iTrader: (1)

yes i work at a autoparts store, i took both the loaner set and one off the shelf, none of them worked, i even took the dp to my buddy at wo rk, who is considerably bigger and stronger than, nothin, that thing is in there, and likei said, dumster is where its going, along with the cat and everything

umrdyldo

iTrader: (1)

see if you can sell the CAT. might be worth a little cash

outtamymind

is this DP previously used and if so perhaps someone mistakenly used thread lock on it. ya never know i've seen some pretty weird things done to cars