Question about 2007 Ford Explorer Sport Trac

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How do I replace Oxygen sensor for 07 Explorer Sporttrac

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First a question for you? Intake side or exhaust?. Most cars are just a bolt-on type of o2 sensor. If you know which one then simply unbolt it after disconnecting car battery ground and disconnecting o2 sensor. Some sensors from autoparts stores Dont have original plug/jack. You will have to splice the wires/jack to the new one. But if just trying to pass smogcheck I recommend a full tune-up including fitlers for motor and a fuel system treatment. If diagnostic computer says replace probly just replace. Too many things can fail a smog check but no reason stated so this is all I can really say without more info. Good luck.

Posted on Nov 30, 2014

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  • Anonymous Nov 30, 2014

    You do not have to disconnect the battery to replace an oxygen sensor Do that you loose all your data to even find a problem You do not buy a sensors that is not vehicle specific so you won't be slicing anything why would you There is no professional tools that tell you to replace anything

  • George Robles
    George Robles Dec 12, 2014

    depends on car. liability, no thank you. just suggesting a solution. Now if there is problem with o2 sensor then I would highly recommend disconnecting battery/ reset computer. Your computer now has a correctly working sensor and will make adjustments to engine. you will notice your milage first get worse then it will get better over time. IF SENSOR WAS BAD THEN THE READINGS IT GIVES ARE INCORRECT THEN ENGINE NOT RUNNING AT OPTIMUM. I WOULD RECOMEND REFFERING TO A REPAIR MANUAL FOR YOUR VEHICLE. SORRY ALL CAPS GLITCH.

  • George Robles
    George Robles Dec 12, 2014

    now as for the data you lose when disconnecting the battery its usually the case that if you know you had a bad o2 sensor its cause you already pulled the codes. you disconnect the battery after you pull all the info you can. but if you can some how tell that you have a bad o2 sensor without first hooking it up to a computer if some sort then you need to share that with the mechanic's of the world cause that would be a neat trick. I sometimes don't state super obvious steps in my answers. you should reset the computer so you can get maximmaximum performance that you did not have before with a bad sensor. and if your smog checking then you have to drive about 50-100 miles before you try to smog again.

  • George Robles
    George Robles Dec 12, 2014

    and it sounds like you never bought a o2 sensor at autozone. I have personally had to splice one for my moms 1990 corolla like 15 years ago. Or you only worked on one car or something..... idk.....anyways, God bless you.

×

Reach up there with a 22mm oxygen sensor
wrench & unscrew it

If it is a rear one, it is in the open in the converter

Posted on Nov 24, 2014

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  1. Disconnect battery ground cable.
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  3. On 3.0L, 4.0L and 5.0L raise and support vehicle.
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Heated Oxygen Sensor (HO2S)- The Bank 1 Sensor 1 tells me that it's an upstream O2 sensor. The larger the number the further down the line of the exhaust it is. Removal & Installation 4.2L Engine ford-04-42-2750.gif
To Remove:
  1. Raise and safely support vehicle.
  2. Disconnect battery ground cable.
  3. Detach electrical connector from right inner fender splash shield (if necessary).
  4. Remove right inner fender splash shield (if necessary).
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To Install:
  1. Apply anti-seize lubricant to heated oxygen sensor threads.
  2. Install heated oxygen sensor. Torque to: 34 ft-lbs (46 Nm)
  3. Connect heated oxygen sensor electrical connector.
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  5. Attach electrical connector to right inner fender splash shield (if necessary).
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  7. Lower vehicle.
4.6L and 5.4L Engines ford-04-46-2751.gif
To Remove:
  1. Raise and safely support vehicle.
  2. Disconnect battery ground cable.
  3. Disconnect heated oxygen sensor electrical connector.
  4. Remove heated oxygen sensor.
To Install:
  1. Apply anti-seize lubricant to heated oxygen sensor threads.
  2. Install heated oxygen sensor. Torque to: 34 ft-lbs (46 Nm)
  3. Connect heated oxygen sensor electrical connector.
  4. Connect battery ground cable.
  5. Lower vehicle.

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