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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

2008-04-23 02:45:00
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Q: Where is the 02 sensor on a 95 Buick LeSabre and how do you disconnect it?
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