dccarpenter
Member
- Joined
- Jan 19, 2019
- Messages
- 39
- Reaction score
- 22
- Points
- 8
- Location
- Owings, MD
- Vehicle Year
- 2000
- Make / Model
- Ford
- Engine Type
- 2.5 (4 Cylinder)
- Transmission
- Manual
- 2WD / 4WD
- 2WD
About a week ago I set about to change my upstream O2 sensor as it was throwing a code , I tried getting it off with a variety of open end and crows foot wrenches and it was not happening even with multiple PB Blaster soaks. I finally got an O2 sensor socket and it took all 220lbs of me and a pipe breaker bar to get it out, the threads on the old sensor were completely toasted.
Of course the new sensor was not threading in after all this, thankfully my old f250 was running well enough to get me down to the parts store for a oxygen sensor thread chaser.
I had to play around with this for a good 10 minutes trying to get it started, finally I got the right angle and gave it several good hard hammer taps to secure it then was able to thread it in using anti-seize on it and making a point to back it out every 3 full turns or so.
The new o2 sensor threaded on nicely after this, I pulled the negative battery cable for a bit and on starting up I was rewarded with no more check engine. About to take a evening drive to see if there is any actual performance benefit.
Just wanted to share this experience so if anyone sets out to do the upstream o2 sensor located on the manifold , buy the oxygen sensor socket and buy a thread chaser to have on hand (at least if it is your only ride that is). I've always had fine luck with my mini torch and pipe breaker leverage for the downstream o2 sockets with no tap/thread chaser needed.
Of course the new sensor was not threading in after all this, thankfully my old f250 was running well enough to get me down to the parts store for a oxygen sensor thread chaser.
I had to play around with this for a good 10 minutes trying to get it started, finally I got the right angle and gave it several good hard hammer taps to secure it then was able to thread it in using anti-seize on it and making a point to back it out every 3 full turns or so.
The new o2 sensor threaded on nicely after this, I pulled the negative battery cable for a bit and on starting up I was rewarded with no more check engine. About to take a evening drive to see if there is any actual performance benefit.
Just wanted to share this experience so if anyone sets out to do the upstream o2 sensor located on the manifold , buy the oxygen sensor socket and buy a thread chaser to have on hand (at least if it is your only ride that is). I've always had fine luck with my mini torch and pipe breaker leverage for the downstream o2 sockets with no tap/thread chaser needed.