im changing the o2 sensor in my 85 iroc. i got the old one out fine and i got the new one installed but i dont have enough clearance to get it tight so some exhaust leaks. anybody know if there is a special tool or wrench or something that has enough room to run it in all the way? ive been using a line wrench but i keep running into either the manifold or the a arm on the other side and cant finish it off. its a stock manifold by the way. thanks for any help you have.

 

O2 sensor socket. Autozone, Checker, Shuck's, Kragen, Murray's, Advance, etc. All have it. That, and I think I used a 10" wobbly extension. Worked like a dream.

 

thanks. do you know how much it costs? and if i have the wiring all hooked up on it already do i need to disconnect it or is it fine to leave it?

 

yea you might need to torque those down to a certain specification too. I did some on my truck and they needed to be torqued to about 30. just fillin ya in.

 

It's not cheap. Was like, $8-9 something IIRC. But it's pretty much essential. I once made due with a crow's foot socket, but that's because I had one on hand. Crow's foot sockets are more expensive than the O2 socket.

And it's recommended to disconnect the wire, so you don't end up damaging your new sensor.