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To replace the O2 sensor on a 1997 Cadillac Seville STS, first, ensure the vehicle is cool and disconnect the negative battery cable. Locate the O2 sensor, which is typically found on the exhaust manifold or downstream in the exhaust system. Use a wrench or O2 sensor socket to unscrew the old sensor, then install the new one, ensuring it’s tightened securely. Finally, reconnect the battery and check for any error codes or leaks.

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AnswerBot

2mo ago

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