Thats what we are trying today. Headed over there now. Thanks

 

Well we did this today

https://www.ford-trucks.com/forums/at...5&d=1278472409

Figured I would post that for all that may find it useful

Still nothing- This is the second time I tested them.

Also did the CC test today and ----- yep you guessed it all good.

Man what a pain. So its unplug one inj at a time rev to 2k and see what happens.

But first were gonna drive it around and see if we can get some codes to reshow.

I thought you only had to run about 20 miles or so before the pcm reactivates code storage. Not sure about that one. That maybe a gasser I am thinking about. But just for the heck of it we will do that.

Oh man while typing this Gary got his hands on a scan gauge so I am headed back over there.

See you in a few

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The link is broken, and doesn't go anywhere.

By the CC test I assume you mean the cylinder contribution test?

I don't know about the 20 miles before it will store codes again. Unplug the MAP sensor and see if you get a CEL. If you do, I would guess it is storing codes!

 

Okay here is the link again
https://www.ford-trucks.com/forums/a...5&d=1278472409


Okay that should work- You have to click okay on the pdf once it opens so if this FTE screen is open it may be in your way and you may not see the other. So after clicking minimize this thread so you can okay the pdf to open.

Let me know if it still does not work.

 

Worked for me. Thanks

 

I reviewed the video's and it sure sounds like a complete power loss for a split second, especially at higher rpm ... more vibration? If it was PCM then you would see the wait to start light recycle, and that is not happening, correct?

So ... what did you find with the scan gauge?

 

Thats right

Well the guy that was bring it had something else come up. I told him that was fine and maybe we can get to it tomorrow. Dang sure did not like the 28 mile trip for nothing. And I decided not to pull the Inj indivdually either, I thought about it and waited on the scan. But then that fell through and it started to rain. So more waiting. My wife told me to get it fixed and buy another one. Shes tired of me working on it; but even more tired of me using her car all the time. I told her okay where can I find 67 thousand at? And that was the end of that conversation.

 

HaHa, that's the only way I get my wife to understand! Good Luck

 

Rock, your kinda far from me, but I have AE and a scan gauge if nobody closer has anything. Be nice to know ICP and IPR DC% when it misses. Also look at the oil spouts when it misses out. See if you can find one of the injectors not discharging oil when it misses.

 

Much appreciated Travis
I tried to see something on the oil when it does it and I tried sveral times and just cant pin point it. I think (just guessing) It could be inj 7 and kinda looked like #3.

Hopefully I will get the icp and ipr DCand some other info today. Still trying to get the scan. Anyhow I guess I should just buy one but I am a little low on cash now. Went and bought all of the xmas gifts this moning for everyone and last month I had to do a rebuild of my sons transmission. So my cash funds are a little depleted to say the least. Trying not to go broke while I figure this out. So I know its dragging out and its been 3 weeks now but it is what it is.

I will post back when I get some more info. I did see a thread started awhile back and I think RICK was helping the guy he ahd the same stutter miss and that post went dead. I guess I could hunt that one down and email the guy and see if he ever fixed it.

 

Rock pm me your address and I'll put my scangauge in the mail in the morning

 

Mike thanks for the offer but the guy came through and I left you a note at your public profile a while back.

Anyhow we have found nothing.

So today I was able to swap pcms and you guessed it, the other truck ran fine and mine ran the same.

So I tried a test pulling the ICP and it still has the hiccup.

So IDM & PCM swap good. CCT was good.

So I will be running a single source power supply to the IDM relay just in case that COULD BE popping open some how and see what happens.

I got the idea from here, but want some thoughts on it.
I have a 1999 Ford van diesel 7.3; hard starting when warm. - JustAnswer

My truck does have a lot of after market electrical circuits.

So here is the condensed list of checks
I can not find a short anywhere
Grounds are all good
ICP/IPR/CCT good
UVCH changed
GPR good, all wires good all GPs are new
CPS good and new still ahve the old one to
IDM relay PCM relay were good but I put some others in for grins
All fuses goodm ohmed good and cleaned and reinstalled. I unplugged the FB heater too.
Both Batts are new-- wires are in great shape, connections too
Voltage relay is good
All pins everywhere are good
IDM swap and pcm swap and still had same issue.

I am sure I left something off that I have done. But anyhow I will be trying the pwr supply to the IDM relay as mentioned and see it anything happens.

I took it by the Ford dealership and left it for a couple of days and they could find nothing but they wanted to replace the pcm and the ipr for 1675.00 or so. So I went up there and asked them to provide the proof that the pcm was the issue and you know what happened and I asked them why they wanted to change the IPR and there was a lot of loooks going around and finally they said well were now in the process of ellimination. Ah ha I actually respected the guy that said that and I told him so.

So I found another pcm and swapped it and still have the problem and I already swapped the IDM. Anyhow I plan on trying to power the idm relay side with a 30A fused supply and see what happens.

I am not too confident that I will fix it with that either. Man what a ordeal...

Any comments are appreciated and welcomed. Read the thread above and let me know what you think.

 

Did you run any live data while you had the scanner ? EOT , ICP , IPRDC% while running ?...

 

Rick I was not there when they tested it; I assume so. They told me everything looked fine. I am not real confident how they determined that.

 

Stop by , I'll get to the bottom of it for you ...