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Safe to use penetrating oil when removing O2 sensors?

  • Sure thing -

    Votes: 3 42.9%
  • No way!

    Votes: 1 14.3%
  • Won't make a difference

    Votes: 1 14.3%
  • Buy new sensors just to be on the safe side

    Votes: 2 28.6%
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348 Posts
With a 02 sensor tool, it should come right out. A little wd40/ pb blaster, a little tapping, will unseize those that are stuck. If not, I agree, heat. Either let the exhaust get hot, wont take more than a few minutes. Then just worry about breaking it loose. Let it cool off, then remove it completely.
Depending on location, it can be difficult to stick a torch for those stubborn ones. I have used mini and pencil torches (cheap o's from Harbor Freight). Takes several minutes to heat the sensor, but works fine.
1 - 2 of 2 Posts
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