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I have a 2012 F150 ecoboost. Need to replace upstream 02 sensors. Any suggestions on how to do this look like a pain to change out.
 

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I have a 2012 F150 ecoboost. Need to replace upstream 02 sensors. Any suggestions on how to do this look like a pain to change out.
The one behind the firewall can be a beotch. I went in from underneath and borrowed a O2 sensor ratchet from AutoZone. Tried about every other option before that and just couldn't get it to turn enough to break free. Put on the borrowed ratchet and it broke free like butter. Good luck! My 14 purs like a kitten now running.
 
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