Upstream O2 sensor replacement
#21
#25
Upstream O2 sensor replacement
I have to do this replacement too. I read somewhere it makes it easier to unbolt the "dog bones" so the engine will rotate forward. Any advice on this or maybe better ways to get the clearance to get to the O2 sensor?
#28
Join Date: Apr 2010
Location: Mentor, Ohio
Posts: 12,217
Some need to rock the engine forward, I have not yet had a need to do so. A good ratchet (or breaker bar), the O2 sensor socket and a matching deep well is all I have needed thus far. When I did my O2, I had to cut the cord of the original and use the deep well socket. I used a long extension to connect it to a breaker bar above the engine. No problems. Then re-installation used the O2 sensor socket.