O2 sensors stuck

[SHO_24_yamaha]

I really need some help with this one. I went to change my o2 sensors out on my mtx sho they are oem on a 95 this car was a northen car and has seen salt and sand so when i went to take them out with the o2 socket the corners on the bolts just rounded out on both of them. so now they are stuck in there and i don't what else to do get them out of there and i have to go through insecpon.

 

[Black '93]

I really need some help with this one. I went to change my o2 sensors out on my mtx sho they are oem on a 95 this car was a northen car and has seen salt and sand so when i went to take them out with the o2 socket the corners on the bolts just rounded out on both of them. so now they are stuck in there and i don't what else to do get them out of there and i have to go through insecpon.

Just use vicegrips or something on the o2 and they sould come out. Maybe put a breaker over the handle of it once you get it clamped really good.

 

[rangerj]

If it would not come loose with an O-2 socket it will not come loose with a pair of vice grips. CAREFULLY heat the area around the O-2 sensor and then try a pipe wrench with an extension pipe. If you do not have any experience with this you could go to a muffler shop and have them remove the O-2 sensors, or at least loosen them for you. To heat the front sensor will necessitate removing the fan and a few other things that could be burned, so if you try it be CAREFUL. Have a helper stand by with a fire extringuisher or a source of water in case of a fire.

 

[Black '93]

well if you stripped the edges like he said he did, then yes, vicegrips will work; just like they did for mine when the same thing happened! You just have to torque the living sh*t out of them.

 

[projectSHO89]

Soak them down with PB Blaster several times over several days.

Steve

 

[NoSlo]

PB Blaster + the opposite of heat: run the engine until the pipes are warm, hold dry ice on the sensor to shrink the sensor itself. And beat on it some with a hammer. 22mm open-end wrench instead of a 12-point socket or box-end.