2001_Ford_Explorer_Sport_Trac Wiki
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PCV Valve Replacement

~ With engine cool, locate PCV Valve on backend of EngineLeft ValveCover, near FireWall.
~ Remove larger rubber VacuumHose elbow from PCV Valve.
~ If PCV Valve has a Coolant OxBow, Pinch+Plug the 2 small CoolantHoses with ViseGrips+BoltPlugs.
~ Using ViceGrips, slide off SpringHoseClamps & remove CoolantHoses from OxBow.
~ This PCV CoolantLoop operates parallel with Heater CoolantLoop to prevent WinterIcing.
~ Remove Old\Dirty PCV Valve with 1/3 CCW turn.
~ Clean Old PCV Valve & VacuumHoses with CarbThrottleSpray.
~ Shake Old PCV Valve; its bad if it does NOT rattle.
~ Insert Clean\New PCV Valve; 1/3 CW turn; ValveCover PlasticTabs may break, do NOT overtighten.
~ ReInstall all above items.
~ Inspect all PCV Hoses+Tubes+Clamps for Broken\Cracked\Loose items.
~ Run engine, Look+Listen for Vacuum+Coolant leaks that cause RoughIdling\Stalls\OverHeating.

Links To Related Info

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

https://sporttrac.org/mysporttrac-archive/projects/replacingthepcvvalve.pdf PCV Valv Replace
https://youtu.be/7R60WNXvcu0?t=1
https://youtu.be/_eNawAKsljU?t=11
https://youtu.be/91i0Y1ksyVk?t=36
https://youtu.be/GHWucT5J36Y?t=36
https://youtu.be/4_jq0bWHzbk?t=8
https://youtu.be/ZZxq9SCISmI?t=1 PCV VacLeak ODB2 TroubleCode p0171+p0174
https://youtu.be/yPqyOrBO-2Y?t=9 PCV VacLeak OBD2 TroubleCode p0171+p0174
https://web.archive.org/web/20210913075538if_/https://www.fordf150.net/forums/viewtopic.php?t=60399 PCV Vacleak OBD2 TroubleCode p0171+p0174
https://web.archive.org/web/20210501162209if_/https://www.explorerforum.com/forums/threads/p0171-p0174-4-0l-sohcs-sport-sport-trac.314670 PCV VacLeak OBD2 TroubleCode p0171+p0174
https://www.google.ca/search?q=+%2B%22kcv-190%22+%2B%22gates+emh153%22&tbm=isch&ved=2ahUKEwiImpOfiO3tAhUUBKwKHRDhAkgQ2-cCegQIABAA&oq=+%2B%22kcv-190%22+%2B%22gates+emh153%22&gs_lcp=CgNpbWcQA1CxwxVY8NQVYKvZFWgAcAB4AIABfIgB1gKSAQMwLjOYAQCgAQGqAQtnd3Mtd2l6LWltZ8ABAQ&sclient=img&ei=oOrnX4jKM5SIsAWQwovABA&bih=612&biw=1366 PCV HoseAssembly
https://www.google.ca/search?q=%22dorman+48011%22&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjQxcOxiO3tAhXbbc0KHW1DBcsQ_AUoA3oECAkQBQ&biw=1366&bih=612 PCV HoseElbow
https://www.google.ca/search?q=%22napa+9807%22&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjgkPTUiO3tAhWVU80KHccIDtgQ_AUoA3oECAoQBQ&biw=1366&bih=612 PCV HoseElbow
https://www.explorerforum.com/forums/threads/pcv-valve.435785
https://www.explorerforum.com/forums/attachments/mvc-028s-jpg.29849
https://www.explorerforum.com/forums/threads/pcv-valve-location.479924
https://www.explorerforum.com/forums/threads/does-this-seem-right.157614
https://www.explorerforum.com/forums/threads/2003-4-0-sohc-pcv-valve.255368
https://www.explorerforum.com/forums/threads/pcv-valve-on-a-2002-4-0l-sohc.310053
https://www.explorerforum.com/forums/threads/pcv-valve-wrap-around-pipe.303805
https://www.explorerforum.com/forums/threads/heater-hoses-around-pcv-valve.440823
https://www.explorerforum.com/forums/threads/coolant-upper-air-manifold-bypass.457412
https://www.explorerforum.com/forums/threads/2001-sport-pcv-valve-removal.167128/page-2
https://www.explorerforum.com/forums/threads/p0171-p0174-4-0l-sohcs-sport-sport-trac.314670
https://www.explorerforum.com/forums/threads/02-sport-4-0l-pcv-problem-wont-lock-in-valve-cover.201046
https://www.explorerforum.com/forums/threads/my-2001-ranger-edge-4x4-supercab.472335/page-3#post-3707870
https://www.explorerforum.com/forums/threads/fuel-pressure-too-high-pressure-regulator.262886/page-2#post-3722978
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