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DIY: Replace Oil Pressure Sensor

Discussion in 'Under the Hood' started by yourpalmike, March 16, 2008.

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    1. yourpalmike

      yourpalmike New Member

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      Whenever I started my 2001 Explorer Sport the oil pressure gauge sat at zero (which is quite scary) until a few minutes later when the gauge jumps up to a normal reading.

      Since there was no pinging and my Explorer hadn't exploded I decided it was probably the oil pressure sensor.

      Go to FORD to fix it? F-that.

      Fix it yourself for $15 and 20 mins of your time:

      [​IMG]

      Start by taking the drivers side tire off and peeling back the small upper bit of the rubber wheelwell


      [​IMG]

      Look in from the wheel well. This is the culprit with the single white/green wire comming out of it. Start by unplugging the connector.


      [​IMG]

      Unplug that sucker and unscrew it using a deep socket.


      [​IMG]

      Old and new. Screw it in using your hand first, then tighten with a wrench. Put everything back in reverse order (plug it back in, replace the wheel well, put on your tire, etc.)


      [​IMG]

      The gauge pops right up every time you start it up. Problem fixed.
       
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    3. 99SportX

      99SportX Well-Known Member

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      I had this same problem on my V8. The sensor is in about the same location. It was a little tight getting a socket in there, but I used a really long extension.

      Great pics.
       
    4. ttbit

      ttbit Elite Explorer

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      Waited for nice weather I see. :) Great write-up.
       
    5. wrigley_1285

      wrigley_1285 Active Member

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      Great write up. Now I can get mine working right.
       
    6. Yaco

      Yaco New Member

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      Where is it on 99 5.0 Mountaineer? I took a 3 min look during lunch and could not find it.Got a picture?
      Thx
      Lee
       
    7. 99SportX

      99SportX Well-Known Member

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      It is real hard/impossible to see unless you look through the drivers fenderwell. It is at the front of the block drivers side.
       
    8. Yaco

      Yaco New Member

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      Pics look good

      Hi,
      Could not view the pics at work so I guessit is pretty much the same as the 4.0? I should just remove the wheel, it is in basically the same place ?
      Thx
      Lee
       
      Last edited: March 24, 2008
    9. mackgoodman

      mackgoodman New Member

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      Thanks!

      Thanks so much for the pictures of where this is and how to fix.. I have been needing to do for a while and have just put it off because I wasn't sure where the sensor was, etc.
      :salute:
       
    10. Yaco

      Yaco New Member

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      Sensor replaced

      Hi,
      Sensor was the problem.. Now to Fix the bulbs in the dash, Front Pass. side Door acctuator, Right Rear Door Window motor, and the pinging.
      With the pinging 99% goes away 89 Octane gas. I have not changed the plugs or wires inat least 75-80k miles. I got it used from the dealer and they said they replaced them @25k. Could this be the Pinging issue?
      Thx
      Lee
       
      Last edited: April 4, 2008
    11. Blazepet7

      Blazepet7 Active Member

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      i didnt know anyone would have the same problem if i went to the auto parts store what is it called , oil pressure sensor? nice write up
       
    12. 99SportX

      99SportX Well-Known Member

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      Yeah, I think it is officially called "oil pressure sender" but they will know what you are talking about.
       
    13. Blazepet7

      Blazepet7 Active Member

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      Going to do it this weekend mine usually shoots back to normal when i rev the gas if not when it warms up like you said.
       
    14. 2doorsplor

      2doorsplor New Member

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      Mine is normal when the engine starts, but when I hit the Gas the pressure drops to 0 pressure. Does anyone think simply changing the sensor would fix this?
       
    15. martin123

      martin123 Active Member

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      Hello maybe a dumb question but what did you use on the treads to make a seal? Just want to know so I do not use something that the oil will eat away at. Also can it be used on other areas of the vehicle. Thanks
       
    16. yourpalmike

      yourpalmike New Member

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      Its just teflon tape.
       
    17. 2doorsplor

      2doorsplor New Member

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      I just replaced mine. The unit I bought already had the coating on the threds. It looked like teflon, it was red and seemed thicker, but i thought i read earlier in this forum that a "semi-conductive" style tape should be used.
       
    18. Cobraguy

      Cobraguy Elite Explorer

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      Now if Ford would have just put an actual gauge in these things I would be happy. My understanding is these "gauges" are nothing more than glorified idiot lights. On and off...that's it. It does nothing to read actual pressure. I actually had to start my new engine with a manual gauge installed so I could see what my actual pressure was.
       
    19. briwayjones

      briwayjones Manual Master Elite Explorer

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      That is correct. There is a write-up on here somewhere on how to make it an actual real oil gauge.
       
    20. FordCastle08

      FordCastle08 New Member

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      Excellent Post--Thanks!!

      I did it...I am official do-it-yourself-er. Thanks to your posting and the excellent picks, I managed to get the job done and save myself some money. I did have some help though because I could not loosen the sensor myself. I need to work on my muscles I guess :D...thanks again!!! :salute:

      Vera
       
    21. Turdle

      Turdle Step-buddy Staff Member Moderator Elite Explorer

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      We'll have you swapping cams and transfer cases in no time-;)
       
    22. FordCastle08

      FordCastle08 New Member

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      Funny you mentioned Transfer Cases..You must be psychic!!

      Indeed, this is another issue I am about to explore in the forums. My vehicle is displaying symptoms of transmission failure but not all the time. For example, sometimes during acceleration the vehicle sounds as if it is winding and it does not accelerate with full force and power. But, if I slow down or stop the vehicle then it accelerates with full power and force. I am skeptical that this is a transmission failure because when the vehicle is in cruise control mode, it drives great with power and acceleration force, without the winding noise. I mentioned this problem to a friend and he suggested maybe the problem lies in the transfer case. :dunno:
       
    23. Pearcematt

      Pearcematt New Member

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      I did it. Worked Great!
       
    24. spitfiresk822

      spitfiresk822 Member

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      ?

      I don't know if this is the right thread to ask this question, but I'm gonna give it a try.
      I'm planning on installing an oil temperature gauge, and everything I have been reading says you either have to get the oil filter sandwich plate (I don't really understand how it is held up there), or drill through your drain pan (which isn't happening).
      So, my question is could you tap into the oil temp by going through the stock oil pressure sensor?
      Any help would be appreciated it, Thanks
      Joey:usa:
       
    25. SoonerMatt

      SoonerMatt New Member

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      Excellent post. Just bought an Explorer. This started happening right away. (I swear it didn't happen on my test drive.)

      On my way to work in the morning the light stays on and it the needle is buried until I'm 1/2 mile down the road. At first I thought everything was fine as it would eventually shoot straight up to the perfect level. My thinking was that if it were a failing oil pump the pressure would gradually increase.

      Anyway, this part is $5.99 here. Looks like a quick and cheap fix. I'll repost after I install the part.
       
    26. garye

      garye New Member

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      just did it . hardest part is getting the wire off and on
       

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