2003 Ford Explorer where to find my O2 sensor

Tiny
JOHN WEL35
  • MEMBER
  • 2003 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
Check engine light is on and code says its an o2 sensor. Where is my o2 sensor and is there a way to tell which one needs replaced since I believe here are 2?
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Saturday, February 7th, 2009 AT 12:37 PM

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Tiny
ZACKMAN
  • MEMBER
You have 4 O2 sensors. What code did you get exactly? I need to actual code number. Example: P0301 is misfire cylinder 1, P0133 O2 sensor bank 1 sensor 1, slow response.
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Sunday, February 8th, 2009 AT 3:33 AM

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