legacyak Posted December 29, 2007 Share Posted December 29, 2007 I'm going to change the front oxygen sensor in my 2000 Outback manual transmission. Do I just need an open ended wrench? Is it much easier with any other tools? Link to comment Share on other sites More sharing options...
ericem Posted December 29, 2007 Share Posted December 29, 2007 Some PB blaster is another good tool. Let it sit for a hour or so. That should help. Link to comment Share on other sites More sharing options...
porcupine73 Posted December 30, 2007 Share Posted December 30, 2007 22mm or optionally 7/8" 6pt wrench is your friend on this job. On '00obw though, connector might not fit through the wrench, in which case 22mm or 7/8" flare nut wrench would be helpful. Link to comment Share on other sites More sharing options...
Dickensheets Posted December 30, 2007 Share Posted December 30, 2007 A close quarters O2 sensor tool is a big help. Available at the parts store. Running the engine for about a minute will aid in loosening the sensor. Plus if you are in canada you can warm your hands on the pipes. Link to comment Share on other sites More sharing options...
NOMAD327 Posted December 31, 2007 Share Posted December 31, 2007 I had a proper sensor socket and full set of combination wrenches, and the best tool on my 99 was a box end with a sawed off (shortened) handle. I believe it was a 22 MM. Link to comment Share on other sites More sharing options...
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