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1997~2012 Ford V6~4.0L~SOHC Engines have a FactoryEquipped OilPressureSwitch on the FrontLeftSide;<br>
This V6~4.0L~SOHC has an OilPressureSwitch only, not a true variable Sensor; it toggles Off~On @6~8psi;<br>
 
despite appearance, the InstrumentCluster OilPressureNeedle is Off~On only; it's not a true variable Gage.<br>
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note, this is only a simple Switch which toggles Off~On at 6~8psi; it is not a fully variable PressureSensor;<br>
  +
thus despite appearance the InstrumentCluster OilPressureNeedle is Off~On only & is not a variable Gage.<br>
 
<gallery hideaddbutton=true position=left spacing=small bordersize=none captionposition=below captionalign=left widths=215 navigation="true">
 
<gallery hideaddbutton=true position=left spacing=small bordersize=none captionposition=below captionalign=left widths=215 navigation="true">
Image:2001.Ford.ExST Engi.Lube Pres.1PNO Ford.f8af-9278-da.GIF|[https://www.google.ca/search?q=%2B%22f8af-9278-da%22&tbm=isch&ved=2ahUKEwjMiuOU7rryAhUWZ80KHeLAAzMQ2-cCegQIABAA&oq=%2B%22f8af-9278-da%22&gs_lcp=CgNpbWcQA1C3KFjjM2CqOGgAcAB4AIABf4gBkgWSAQM1LjKYAQCgAQGqAQtnd3Mtd2l6LWltZ8ABAQ&sclient=img&ei=vSMdYYy4GJbOtQbigY-YAw&bih=601&biw=1366 FordMotorCraft# f8af-9278-da]<br>* FactoryOE<br>* 12v17a1PNO 1pMalePlug~FrameCom<br>* FactorySet@ 06~08psi<br>* 0i250*18nptMale PipeConnection<br>
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Image:2001.Ford.ExST Engi.Lube Pres.1PNO Ford.f8af-9278-da.GIF|[https://www.google.ca/search?q=%2B%22f8af-9278-da%22&tbm=isch&ved=2ahUKEwjMiuOU7rryAhUWZ80KHeLAAzMQ2-cCegQIABAA&oq=%2B%22f8af-9278-da%22&gs_lcp=CgNpbWcQA1C3KFjjM2CqOGgAcAB4AIABf4gBkgWSAQM1LjKYAQCgAQGqAQtnd3Mtd2l6LWltZ8ABAQ&sclient=img&ei=vSMdYYy4GJbOtQbigY-YAw&bih=601&biw=1366 PressureSwitch Ford# f8af-9278-da]<br>* FactoryOE<br>* Off~On Only; FactorySet @06~08psi<br>* 12v17a1PNO 1pMalePlug~FrameCom<br>* 0i250*18nptMale PipeConnection<br>
Image:2001.Ford.ExST Engi.Lube Pres.1P2T Hobb.76579-4.GIF|[https://www.google.ca/search?q=pressure+switch+76579-4&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiorpPC7bryAhXGLs0KHSjRAK8Q_AUoA3oECAEQBQ&biw=1366&bih=601 HoneywellHobbs# 76579-4]<br>* Optional<br>* 12v08a1P2T 3pScrwTerm~Isolated<br>* Adjustable@ 01~20psi<br>* 0i125*27nptMale PipeConnection<br>
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Image:2001.Ford.ExST Engi.Lube Pres.1P2T Hobb.76579-4.GIF|[https://www.google.ca/search?q=pressure+switch+76579-4&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiorpPC7bryAhXGLs0KHSjRAK8Q_AUoA3oECAEQBQ&biw=1366&bih=601 PressureSwitch Hobbs# 76579-4]<br>* AfterMarket Option<br>* Off~On Only; Adjustable @01~20psi<br>* 12v08a1P2T 3pScrwTerm~Isolated<br>* 0i125*27nptMale PipeConnection<br>
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Image:2001.Ford Engi.Lube Pres.Nedl.GIF|[https://static.wikia.nocookie.net/2001fordexplorersporttrac/images/b/b2/2001.Ford.ExST_Nter.Dash_Instrmnts_0001.GIF PressureNeedle @InstrumentCluster]<br>* FactoryOE<br>* Off-On Only; Not A Variable Gage<br>
 
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: http://youtu.be/alHgRzCSJKI?t=4
 
: http://youtu.be/alHgRzCSJKI?t=4
 
: http://web.archive.org/web/20200425104211/http://autodiyonline.com/ford-diys/ford-explorer-diys/ford-explorer-1995-2003-sport-oil-pressure-sensor-diy
 
: http://web.archive.org/web/20200425104211/http://autodiyonline.com/ford-diys/ford-explorer-diys/ford-explorer-1995-2003-sport-oil-pressure-sensor-diy
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: <br>
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: https://www.explorerforum.com/forums/threads/accusump-install-question.498865 PreOiler
 
: https://www.explorerforum.com/forums/threads/pre-oiler-to-save-timing-chain-guides.377315 PreOiler
 
: https://www.explorerforum.com/forums/threads/pre-oiler-to-save-timing-chain-guides.377315 PreOiler
 
: https://www.explorerforum.com/forums/threads/dont-buy-this-pre-oiler.484187/#post-3808999and PreOiler
 
: https://www.explorerforum.com/forums/threads/dont-buy-this-pre-oiler.484187/#post-3808999and PreOiler

Latest revision as of 16:12, 1 June 2022

1997~2012 Ford V6~4.0L~SOHC Engines have a FactoryEquipped OilPressureSwitch on the FrontLeftSide;
note, this is only a simple Switch which toggles Off~On at 6~8psi; it is not a fully variable PressureSensor;
thus despite appearance the InstrumentCluster OilPressureNeedle is Off~On only & is not a variable Gage.

EngineColdStart Procedure

If V6~4.0L~SOHC Engine hasn't run for 12 hours or longer, this EngineColdStart routine is recommended
for general PreLub of the Engine critical components & specificly to PrePressurize the TimingTensioners.

  • Turn Key To RUN Not START, Let InstrumentCluster Lamp+BuzzerTest Complete
  • Push+Hold GasPedal To Floor, InstrumentCluster OilPressureNeedle Should Be At Zero
  • Turn Key To START, Let Engine CRANK Without Starting Until OilPressureNeedle Moves Or ~10secs
  • Let Key SpringReturn To RUN, Engine CRANK Should Stop
  • Release GasPedal, Turn Key To START; When Engine STARTS, Let Key SpringReturn To RUN
  • OilPressureNeedle Should Quickly Rise+Hold At MidGage Position

Links To Related Info

Thanks go to the brave souls who've preceded me in similar adventures & freely shared their experience:

http://youtu.be/Q7Vj85Ioj48?t=1
http://youtu.be/3_aEd-AaNOM?t=23
http://youtu.be/p4ZlOwzbOWM?t=1
http://youtu.be/alHgRzCSJKI?t=4
http://web.archive.org/web/20200425104211/http://autodiyonline.com/ford-diys/ford-explorer-diys/ford-explorer-1995-2003-sport-oil-pressure-sensor-diy

https://www.explorerforum.com/forums/threads/accusump-install-question.498865 PreOiler
https://www.explorerforum.com/forums/threads/pre-oiler-to-save-timing-chain-guides.377315 PreOiler
https://www.explorerforum.com/forums/threads/dont-buy-this-pre-oiler.484187/#post-3808999and PreOiler
https://www.explorerforum.com/forums/threads/2001-ford-explorer-sporttrac-oilpressurized-timing-tensioners-replaced.488855/page-2 PreOiler Piping+Wiring
https://www.explorerforum.com/forums/threads/timing-chain-rattle-resolution-process-sohc-v6.278100/page-3#post-3508792