I need help, I can't egt the o2 sensor out. Im trying to change my downpipe, I have 2 hours till work, any tips?

bump

 

Do you not have the correct size wrench? Is it stuck?

 

it won't budge, and I don't know where to un clip it

 

It unclips behind the motor near the black crossmember under there. Penetrating oil should help you unscrew it, Mine was not that tight.

 

I had to unclip mine on the old Cobalt I had. then took the whole DP out and put it in a vice

 

Hey.. not sure where you ordered the DP from, but if it was Clear Image, they are always very helpful.. just give them a call and they could probably walk you through it.. GL

 

Do you have a O2 sensor socket? They really help in taking them off.

 

Did you let the exhaust cool down first?

 

 

use a small pipe wrench, works everytime!

 

A judicious application of propane and a spark works well.. (aka heat around the o2 sensor with a torch, it will come right out)

 

just man up a heeve that sombitch

 

i used an adjustable wrench and mine came right out. had to unclip it though. just follow the wires.

 

Oh yea, make sure you re-apply anti-seize before putting it back in. Anything that screws into an exhaust should have anti-seize on the threads.

 

Not really

 

Why not? All that heat equals a lot of oxidation over time which will cause seizing especially if you live near saltwater or up north. Just dont get the antiseize on the O2 sensor itself just the threads.

 

agreed. Can't hurt anything. Only helps you down the road.

 

Thats how it goes when you actually are trying to make things so that they are servicable. All the heat and moisture in an exhaust will rust everything eventually, anti-seize will make it to its more of a breaker bar job, not a torch/breaker bar/hammer job.