How to un-seize 02 sensor?

Asked by May 21, 2013 at 08:27 PM about the 2001 Mitsubishi Eclipse GT

Question type: Maintenance & Repair

I just sprayed some bolt buster on it and am going to let it sit over night.  Any other suggestions?

2 Answers

287,315

Heat the bung that the sensor screws into enough to remove the sensor without getting it red hot. A big wrench helps too.

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106,715

Try a mixture of 30% acetone (nail polish remover) and vegetable oil. Keep it capped when not in use so the acetone doesn't evaporate. https://www.engineeringforchange.org/news/2012/08/14/how_to_make _penetrating_oil.html

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