O2 sensors - 1992
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
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From: SANTA CRUZ CA
O2 (oxygen) sensors - 1992
Anyone replace O2 sensors? No room on the right side for a socket, and I can position a socket on the left side, but not a ratchet.
Can access the sensor base with a 7/8 closed end wrench, but little swing room.
Was expecting a 10 minute job, but all I accomplished was cleaning the undercarriage.
I would be interested to learn how others have performed this task.
Did several internet searches, and the job seemed straight forward.
The forum search provided zilch.
Can access the sensor base with a 7/8 closed end wrench, but little swing room.
Was expecting a 10 minute job, but all I accomplished was cleaning the undercarriage.
I would be interested to learn how others have performed this task.
Did several internet searches, and the job seemed straight forward.
The forum search provided zilch.
Last edited by don hall; May 7, 2013 at 04:29 PM.
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
I would be concerned using an open end wrench for fear of rounding, and there is still limited room for a swing of the wrench. A crescent won't work for me. The only tool I can think of is a crows foot, but even that would be iffy.
Safety Car
Joined: Mar 2005
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From: Fredonia WI
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I haven't done this yet on my 90 and it may be different from your 92. Are you trying to use just a regular wrench?
I have a kit like this http://www.autozone.com/autozone/acc...er=272729_0_0_
and I've removed a number of hard to reach O2 sensors with it.
I have a kit like this http://www.autozone.com/autozone/acc...er=272729_0_0_
and I've removed a number of hard to reach O2 sensors with it.
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
I haven't done this yet on my 90 and it may be different from your 92. Are you trying to use just a regular wrench?
I have a kit like this http://www.autozone.com/autozone/acc...er=272729_0_0_
and I've removed a number of hard to reach O2 sensors with it.
I have a kit like this http://www.autozone.com/autozone/acc...er=272729_0_0_
and I've removed a number of hard to reach O2 sensors with it.
As previously posted, I can position a closed-end wrench, but no room to swing the wrench.
Burning Brakes
Joined: Apr 2011
Posts: 917
Likes: 25
From: College Station Tx
I'm not sure if the 92 is different than the 95, but I used the crowfoot socket too. After putting the car on ramps and crawling all the way under, I found that access was rather easy on both sides.
Last edited by csthews; May 7, 2013 at 10:29 PM. Reason: missing information
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
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From: SANTA CRUZ CA
I would think that the '92 and the '95 are the same sensor locations.
Thanks for the reply.
Drifting
Joined: Mar 2012
Posts: 1,492
Likes: 61
From: New Jersey
When I did my passenger side O2 sensor, I used this type of sensor socket -
. I can't remember what brand I used but I got it locally.
This socket has an extended arm which allowed me to get a 3/8 breaker bar on it. I also added a small pipe to the breaker bar for added leverage. The sensor was really in there but this finally got it to move. I also soaked it with PBblaster for 24 hours before I tried to get it off. Good luck to you!
This socket has an extended arm which allowed me to get a 3/8 breaker bar on it. I also added a small pipe to the breaker bar for added leverage. The sensor was really in there but this finally got it to move. I also soaked it with PBblaster for 24 hours before I tried to get it off. Good luck to you!
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Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
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From: SANTA CRUZ CA
I saw this tool, but didn't understand the application until now.
You have solved this old man's dilemma. My 81 year-old creaky bones can't wait to crawl under the vette again.
Many thanks, Silver96ce!
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
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From: SANTA CRUZ CA
Thank you.......
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
Thanks for the reply.
Last edited by don hall; May 8, 2013 at 09:08 AM.
Instructor
Joined: Nov 2009
Posts: 164
Likes: 2
From: Spring Texas
To change O-2 sensors on my 95, I bought both the slotted deep socket and the crow-foot, 1/2 drive from Harbor Freight for less than $15.00. I have leant them out to many of my Corvette Club, C4 owners and they have worked great.
Melting Slicks
Joined: Jan 2009
Posts: 3,181
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From: Puyallup Washington
As I recall, my 1992 FSM says to have the exhaust hot when removing the O2 sensors. Something about it comes out much easier and the threads do not get damaged. I took one of them out on mine, which I think was on the passenger side, and there was very little room to work. I was able to do it with the O2 sensor socket sold at the auto parts stores.
Safety Car
Joined: Mar 2005
Posts: 4,471
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From: Fredonia WI
2025 Corvette of the Year Finalist - Unmodified
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I hope I'm able to when I'm your age.
Melting Slicks
Joined: Jul 2011
Posts: 2,605
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From: Trinity FL
Yes! That is exactly what I need: CTA Tools 2065 Heavy Duty Oxygen Sensor Socket - Amazon.com
I saw this tool, but didn't understand the application until now.
You have solved this old man's dilemma. My 81 year-old creaky bones can't wait to crawl under the vette again.
Many thanks, Silver96ce!
I saw this tool, but didn't understand the application until now.
You have solved this old man's dilemma. My 81 year-old creaky bones can't wait to crawl under the vette again.
Many thanks, Silver96ce!
Burning Brakes
Joined: Apr 2011
Posts: 917
Likes: 25
From: College Station Tx
You make it seem so easy, csthews. When you are 81, nothing under the vette is easy. Yes, I had my mitts on both sensors, just no room to swing a wrench. A crows foot type wrench may be the answer, but I will still need swing room, or hammer room.
I would think that the '92 and the '95 are the same sensor locations.
Thanks for the reply.
I would think that the '92 and the '95 are the same sensor locations.
Thanks for the reply.
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
It seems the body has a way of 'telling' you when it has had enough.
Thread Starter
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
At 52, it is definitely not easy....but I guess much easier than for you. But actually, when I removed the driver's side, I used 2 swivel drives with the crows foot just to get enough room to swing the ratchet. But when I put it back on, I braved up and slid all the way under. From that different viewpoint, I could see that I had plenty of room to swing the ratchet without the swivels.
The tab for an 18" breaker bar was key. I really had to lean on that bar, even with a heavy application of PB Blaster. The sensors were original (21 years), and didn't enjoy being persuaded to leave their nest. Chased the threads, and installation went smoothly.
I'm not sure why I decided to replace the sensors, as the vette has 64K miles, and I have read that 100K might be the time to change.