Random long crank
Fleet Owner
Joined: Nov 2003
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Not trying to argue, but I just don't see how a high pressure oil leak will be worse with cold thick oil than with hot thin oil. Glad it fixed yours.
Regardless, I would check the ICP and IPR values before starting the job to replace the dummy plugs - just makes sense not to guess when you don't have to.
Regardless, I would check the ICP and IPR values before starting the job to replace the dummy plugs - just makes sense not to guess when you don't have to.
Junior User
Joined: Feb 2017
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I'm not trying to argue either? It makes sense to me that one of my.oil rails would leak down from the o ring not sealing and would have to crank an extra 3 to 5 seconds more then usual to build the pressure back up for the injector's my truck had less then a 100k also at that time maybe around 90k
Junior User
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Agree also as stated updated parts that are recommended by the OEM that have not been performed should be done as well regardless of any other issues that actually maybe the real problem. I am a professional actually so I'll always prefer to perform all possible related TSB's as well as other problems you may find. I guess I could say and did not post that my FICM was new as well as the STC fitting being updated and I did perform other diag. Before changing my dummy plugs and stand pipes it's all that was left
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New User
Joined: Dec 2017
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Checked ficm voltage,was 47.5 to 48.ficm sync was good. Icp voltage was .2. noticed earlier today when the long crank occurred that icp was slow to build and ipr maxed out near 84%. Thinking high pressure oil leak somewhere. May air test it when it warms up a little. Been near zero in the mornings with highs in the teens
Junior User
Joined: Feb 2017
Posts: 62
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Checked ficm voltage,was 47.5 to 48.ficm sync was good. Icp voltage was .2. noticed earlier today when the long crank occurred that icp was slow to build and ipr maxed out near 84%. Thinking high pressure oil leak somewhere. May air test it when it warms up a little. Been near zero in the mornings with highs in the teens
Ya check and do the obvious stuff the TSB's for high pressure oil leaks is where I'd start
Fleet Owner
Joined: Nov 2003
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Got an issue with a long crank situation. Doesn't happen all the time, mostly when cold. Will usually start immediately when it starts to turn over but sometimes will take several seconds of cranking before it starts. Once it starts it runs perfect. If I shut it off after it's warmed up and start it back fine if you don't let it cool back down. Usually starts fine if it is plugged in. Was thinking possibly dummy plugs but am open to suggestions.
This is a perfect thread for demonstrating how important engine data is vs just troubleshooting symptoms.
Junior User
Joined: Feb 2017
Posts: 62
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Still just trying to prove a point ? I'm a professional seriously we do it all but ok pay the diag time................. Or just waist time whatever works for you
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Fleet Owner
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Show me the Ford or Navistar procedure for troubleshooting a no-start cold that is assisted with plugging in the block heater. I don't believe that it will directly point you to a HPO leak. I am glad you are a professional (I guess), but to replace parts on a guess without taking data, which is what you seem to advocate, is not helpful .. or wise for that matter.
Anyway, I was serious with the question - one of the symptoms was "starting improved when plugged in". I am all about learning - and I don't see the connection (and I have all the manuals and I know the troubleshooting procedures). He either has another issue, additional issues, or a rare issue that doesn't match the expected symptoms. Trying to prove a point is, well, "pointless" - I am still trying to help the OP.
Laughing Gas
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Professional what tho, we have all kinds of those on here,pro fireman to fisherman
Junior User
Joined: Feb 2017
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Wow - you are quite unbelievable.
Show me the Ford or Navistar procedure for troubleshooting a no-start cold that is assisted with plugging in the block heater. It will not directly point you to a HPO leak. I am glad you are a professional (I guess), but to replace parts on a guess without taking data, which is what you seem to advocate, is not helpful .. or wise for that matter.
Anyway, I was serious with the question - one of the symptoms was "starting improved when plugged in". I am all about learning - and I don't see the connection (and I have all the manuals and I know the troubleshooting procedures). He either has another issue, additional issues, or a rare issue that doesn't match the expected symptoms. Trying to prove a point is, well, "pointless" - I am still trying to help the OP.
Show me the Ford or Navistar procedure for troubleshooting a no-start cold that is assisted with plugging in the block heater. It will not directly point you to a HPO leak. I am glad you are a professional (I guess), but to replace parts on a guess without taking data, which is what you seem to advocate, is not helpful .. or wise for that matter.
Anyway, I was serious with the question - one of the symptoms was "starting improved when plugged in". I am all about learning - and I don't see the connection (and I have all the manuals and I know the troubleshooting procedures). He either has another issue, additional issues, or a rare issue that doesn't match the expected symptoms. Trying to prove a point is, well, "pointless" - I am still trying to help the OP.
Times money keyboard warrior honestly guys like you never pay my bills so it is what it is !! Quite ignorant of you to not at least take care of the OEM Ford. Recommend high pressure oil leak updates on top of taking care of what issue he may or may not find good luck with your truck mine runs great!
