trying to remove old o2 sensor on 94 civic ex, nothing seems to work tried heating up, lube, everything. took to a shop they couldnt remove either. any ideas?
thanks

 

I had the same problem on mine, when I was in the process of transfering the O2 sensor from my oem manifold to my dc one. I sprayed some rust remover/loosener on it first. I had the wrench on it, and I put my weight on it with my foot, and after a few light hops/kicks, it came loose. Then I transfered it with the O2 extension that came with my DC and it was fine. It was funny, as I tried to have a shop take it out too and they couldn't.

My friend covered the wrench with a shop cloth and started to pound away with a rubber mallet and that worked for us when we worked on his car.

Might want to try that.

 

for my o2 sensor i got a wrench.. put a long pipe over it and the sensor came out no problem... be sure to use anti-seize wen u reinstall it so u wont have this problem again...

 

thanks i will certainly try that.. come to find out the shop where i took it to used a blow tourch.now the manifold is crack so have to give em hell to try to get them to replace that thanks again

 

That sucks. I had a cracked manifold once. Gas in the cabin when the vents were open. Horrible.

Since you know that they did it, file a complaint. The Bureau of Automotive Repair handles stuff like this.
You might have to be the guy that they just FIX-IT for, just to get you to go away.

http://www.dca.ca.gov/complainthelp/...complaint.html

Good luck!