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o2 sensor replace

  1. F

    O2 Sensor and Catalytic Converter Replaced Light Still on 2014 Explorer

    We bought a used 2014 Ford Explorer 3 years ago. Has 177,000 miles today. About 18 months ago started having issues with O2 sensors. To date we have replaced 6 O2 sensors. All 4 were replaced and 2 were replaced again. Couldn't pass emissions without a new catalytic converter, also had...
  2. C

    2013 Explorer XLT Blues

    JUST Picked Up a 13 XLT with 105k on it. Drives like a dream minus the engine light that pops up on the way home from the used car lot that’s a P0430 code. Where the Hell are the O2 sensors and should I just do all?
  3. S

    Bank 1 & 2 O2 Sensor ‘03 4.0L

    Hi everyone! I’m going to attempt to replace the O2 sensors on my sister-in-law’s ‘03 Explorer 4.0L. The dealership used a code reader and advised that the bank 1 & 2 O2 sensors were bad. I don’t have the code. I’m wondering if those are upstream sensors or downstream? Also, I have never...
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