2003 Tahoe z71. I cant seem to get the o2 sensor to break loose on bank 2 lower sensor. I do have a crows foot socket for it and i have hit it with kroil... did not budge. Now i have heated the sob to cherry red and it still wont budge! Any Ideas how to get it off from there without having to cut it out?

 

e to the forum.

You need to get an O2 sensor socket and use a breaker bar.

 

That is part of the problem i have two styles of the socket both are o2 sockets, and yes i used a nice long breaker bar.

 

Sorry, I thought you said you were using a crows foot.

 

no problem it is a crows foot type o2 socket

 

i did all 4 on my suburban it a 2000.best option I can find some of them are.a 12 crestwrench

 

A crescent wrench will tend to round off the corners.

 

if the sensor is junk, cut the wires close to the end of the sensor. this will allow you to put a 6 point, deep socket on it. heat up the threaded part of the exhaust pipe, not the sensor itself.

 

Spray BP blaster on it and let soak as well... Might help