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Buick LeSabre

Where is the 02 sensor on a 95 Buick LeSabre and how do you disconnect it?


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Wiki User
2008-04-23 02:45:00
2008-04-23 02:45:00

In the exhaust manifold or near the pipe, must raise car to get at it . better to work on when engine is cool,easer to to remove and you won't get burned.use never sieze if using old one again (new ones already have it on ) simply unscrews with wrench, do not force may damage threads

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When I had that problem on my 1997 buick lesabre, I had to replace the catalyst converter and the 02 sensor on it. It resolved the issue with the code.

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It has a conector, just un plug it. Then remove the 02 sensor from the exhaust.

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replace them both, if u reset n sends bad code replace otherone 4 real or go 2 a shop n spend 74 - 100 4 diagnostic

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Disconnect positive cable first then negative. Reconnect the negative cable first then positive.

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Bank 1 sensor 1 was the upstream 02 sensor located before the catalytic con on my 03.


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