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If the oxygen sensor won't break loose, try putting heat on the headpipe where the sensor screws in. If you have access to a acetylene torch, heat the pipe until it starts glowing red, and while it's hot, put the oxygen sensor socket over the sensor and use a breaker bar to work it loose. Be careful that you don't burn yourself though.

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โˆ™ 2008-11-30 17:01:03
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Q: How do you remove oxygen upstream sensors on my 1997 cadillac deville i found one and the right side but it seems way too tighthow can you loosen the nutany suggestions on loosening to come?
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