Stuck Oxygen sensor
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New User
Joined: Dec 2004
Posts: 11
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From: Cincinnati
Stuck Oxygen sensor
Hi Guys, I'm pretty new here. Here's my problem. '93 F-150 4x2 4.9l. I'm attempting to change the oxygen sensor. It won't budge. It's been soaking in PB blaster for a day. I've tried a Big wrench I've tried the Oxygen sensor Socket. It just spreads open because of the split. Any ideas???
Postmaster
Joined: Jun 2004
Posts: 2,665
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From: B/CS, Texas!!
Heat will help. A torch or just the exhaust itself.
Heres what I did:
-Ran truck for around 5 minutes. (let pipes get hot)
-Got a wrench and put it on the O2 sensor.
-I got a hammer and hit the wrench
.
The sensor came out with just one hit. If you try this, be careful not to touch the pipes.
Heres what I did:
-Ran truck for around 5 minutes. (let pipes get hot)
-Got a wrench and put it on the O2 sensor.
-I got a hammer and hit the wrench
.The sensor came out with just one hit. If you try this, be careful not to touch the pipes.
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
Originally Posted by FoolCrzy
I've tried the Oxygen sensor Socket. It just spreads open because of the split. Any ideas???
Postmaster
Joined: Aug 2004
Posts: 4,004
Likes: 1
From: North of Boston MA
I have had luck using a box wrench with a pipe on it. You may have to jack up one side of the truck to get the pipe on it. The worst one I ever had to do was on a Bronco II - original O2 sensor, 15 years old. I had the car jacked up about 3 feet on one side and could only get one flat at a time but it came. The longer the pipe the better.
Heat definitely helps. Run it hard for a while, jack it up and go to it. Cut the wires - you can always splice them if you can't get it out.
Good luck.
Heat definitely helps. Run it hard for a while, jack it up and go to it. Cut the wires - you can always splice them if you can't get it out.
Good luck.
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Senior User
Joined: Jan 2005
Posts: 229
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From: Wichita, KS
I recently had a similar issue with the O2 sensor on my wife's Suburban. My small (about 10") pipe wrench, with a cheater on the end worked great. I did heat it some with a propane torch, as it was early spring, and pretty chilly out, I'm not sure how much the heat helped.
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Posting Guru
Joined: Jun 2004
Posts: 1,781
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From: Central NY
Originally Posted by F-Liner
I recently had a similar issue with the O2 sensor on my wife's Suburban. My small (about 10") pipe wrench...
So I'm not the only one using a pipe wrench!
Theres no need for that silly O2 socket. You don't really care if you damage the wires on removal and going in can be done with a box end or cresent wrench easy enough.
Cheers,
Popa Tim
Senior User
Joined: Feb 2005
Posts: 242
Likes: 1
From: Pittstown NJ
i just relpaced an o2 sensor on my truck it has been on there for 17 years the exhaust was hot from driving and i used a regular socket (cut the wires) with a breaker bar and a 4 foot snap-on extendawrench and it was still hard to turn but it came out
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New User
Joined: Dec 2004
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From: Cincinnati
Originally Posted by quicklook2
good for you! does it run better with new sensor? did you have trouble or codes?
And as far as the hose clamp around the socket goes, I tried that....
