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O2 sensor
I was wondering if anyone who has changed the bank 1 sensor 1 O2 sensor on a 2001 Buick Century had an issue with it not coming loose and the socket wanting to slip and feel like it wants to round off. I have sprayed PB Blaster on it over and over, ran the car to get it warm and still have same issue. I have the O2 socket the looks like a deep well with section cut out for the wire.
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