o2 sensor replacement, a do it yourself job? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-21-2005, 01:39 AM   #11
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Quote:
Originally Posted by LittleHoov
yeah it says the anti seize needs to be electrically conductive, it says something about it having glass beads in it...when it heats up whatever else is in it burns off and the glass beads stay...thats obviously not an exact quote...just me trying to remember
Ya it'* something stupid like that.
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Old 07-21-2005, 02:04 AM   #12
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ok... not to steal the thread, but it'* related. My 93 SSEi is only getting 22-24 highway. If I change the O2, would that help the mileage?
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Old 07-21-2005, 02:18 AM   #13
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If someone chages it, give us a write up! I'd love to do this!
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Old 07-21-2005, 02:44 AM   #14
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its almost self explainatory. get O2 socket and a wrench. neel on radiator frame support if you are still agile enough. Lean over engine. disconnect the O2 sensor. slide socket over the old one and twist it out. Screw new one in and tighten.

Took me 10 minutes tops including getting a wrench, opening car, poping hood, I removed the engine cover because I wanted to clean it, changing the sensor,and then the reverse process.
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Old 07-21-2005, 03:55 AM   #15
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All AC Delco O2'* already have the anti seize applied to the threads.
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Old 07-21-2005, 08:30 AM   #16
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Ok...Here'* your write up. And let me preface by saying "kneeling on the rad support" you're trying to do what? lol

Put a fender cover or towel over the passenger fender. Reach back and follow the O2 wire to the back metal piece it clips to unhook from metal bracket. Unhook connector from engine harness to O2 sensor (same wires as previous step). Using an O2 socket or crow'* foot and long extension loosen O2. Reverse procedure.

A couple of tricks..if it doesn't loosen right up. plug it back in and take the car for a small cruise around the block to heat the exhaust. Now it should jump right out...be careful now it is extremely hot.
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Old 07-21-2005, 09:32 AM   #17
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Quote:
Originally Posted by BillBost37
Ok...Here'* your write up. And let me preface by saying "kneeling on the rad support" you're trying to do what? lol
it sort of looks like this:



granted I am only 18 so I am still agile enough to do this.

My knee was on the strut mount thinger so no weight on that foot and my other knee was not touching, my weight is actually on my shin. I was doing spark plugs while in that position so the O2 was a little different, but the same basic concept.
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Old 07-21-2005, 09:58 AM   #18
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Hey... I'm older than you.... I don't think I can do that anymore...

If I do.... All I'd be able to say is " This hurts " LMAO :P

The O2 sensor change is very easy...

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Old 07-21-2005, 09:58 AM   #19
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Honestly..I'm a typical 5'10" and have no problem leaning over and doing this or sparkplugs from a standing postiion on the side of the car.

Now..if you gotta crawl into a truck to work on it I understand.. I had worked on a 75 in the rain with the hood nearly shut. Tons of room.

Thanks for the pic though...It'* worth a good chucke. I think Steven once sent me pics of a couple of the guys kneeling on their rad supports barefoot...hahaha
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Old 07-21-2005, 09:59 AM   #20
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Quote:
Originally Posted by JimmyFloyd
ok... not to steal the thread, but it'* related. My 93 SSEi is only getting 22-24 highway. If I change the O2, would that help the mileage?
The fuel rating of your SSEi is 25 mpg hwy.... But most will do better than that....

It may be worth a shot to replace it if it has never been done before...

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