oxygen sensor replacement - 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 12-20-2002, 04:16 AM   #11
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MaDD RuSSkiY is on a distinguished road

I bought mine @ RockAuto.com for $35.
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Old 12-28-2002, 09:03 PM   #12
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Default Re: oxygen sensor replacement

I replaced mine in my 95 Bonnie. It is not hard. You can do it from reaching over the rear (between the fire wall and the engine) and using a properly sized wrench. I think I used a large cresent wrench. You may have to break it loose - but mine wasn't hard to do. Are you knibble/flexable You may have to streach a little.

Don't forget to disconnect the wire to the connector. You'll see it.
If you bend over from the drivers side of the car, you should have a pretty clear view of the O2 sensor. It is located not too far down from the exhaust manifold centered on the exhaust pipe. It has one wire coming off the top of it.

Most everyone says to use a O2 sensor made by Delco. Better gas milage. You can ask around and/or search this site to see what others have to say.


Originally Posted by MaDD RuSSkiY
Hey all,

Quick question: how hard is it to replace an oxygen sensor on a '95 Bonneville SE Is it accessible without going under the car?

Thanks in advance,
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