7.3 issue - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 06-26-2019, 07:17 PM Thread Starter
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7.3 issue

This just started this morning when I went out to start the truck to go to work. The wait to start light went out and I turned the key to start it up, but it cranked and cranked without firing up. I went through the process of the wait to start another time and the same thing. During the coldest part of the winter it rarely did this so now that summer is here Iím not sure what is going on. After the forth time it started and ran fine, but did the same thing after work. Any suggestions would be greatly appreciated.
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post #2 of 13 Old 06-27-2019, 01:35 AM
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Originally Posted by Robert W Sorensen Jr. View Post
This just started this morning when I went out to start the truck to go to work. The wait to start light went out and I turned the key to start it up, but it cranked and cranked without firing up. I went through the process of the wait to start another time and the same thing. During the coldest part of the winter it rarely did this so now that summer is here I’m not sure what is going on. After the forth time it started and ran fine, but did the same thing after work. Any suggestions would be greatly appreciated.
If you have torque or another system to monitor Icp post your PID results, if not
Try unplugging your icp and see if it starts.

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post #3 of 13 Old 06-27-2019, 04:15 AM
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Check the oil level.
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post #4 of 13 Old 06-28-2019, 06:27 PM Thread Starter
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I will try that tomorrow morning.
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post #5 of 13 Old 06-28-2019, 06:29 PM
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Could be several things, did the engine sputter or otherwise run "odd" when you finally got it started?

anything from a fuel pressure issue to low injection oil pressure -- don't think electrical since it did start, but don't rule that out yet

Have you done anything to the truck lately? service, mods, etc

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post #6 of 13 Old 06-28-2019, 06:53 PM Thread Starter
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Quote:
Originally Posted by jonathanh96 View Post
If you have torque or another system to monitor Icp post your PID results, if not
Try unplugging your icp and see if it starts.
I disconnected the icp and still doesn’t start. I don’t have any of the scanners or the ability to borrow one to use, but I was hoping to try to fix this myself, any other thoughts would be much appreciated, and I did check the oil level which is right where it should be.
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post #7 of 13 Old 06-28-2019, 07:00 PM Thread Starter
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Quote:
Originally Posted by Hydro View Post
Could be several things, did the engine sputter or otherwise run "odd" when you finally got it started?

anything from a fuel pressure issue to low injection oil pressure -- don't think electrical since it did start, but don't rule that out yet

Have you done anything to the truck lately? service, mods, etc
Once the engine did start it stalled right away and then started again and ran fine, it is my only driver so it’s getting a little harder each time and I only use it to go back and forth to work. I was wondering if the fuel was losing prime? But I really don’t know the system that well, I’m only a back yard mechanic, and most of that was always gasoline engines, so I’m learning quickly about diesels now. No modification what so ever, just changed the oil and filter, but not the fuel filter this time. I did try disconnecting the ICP and starting it then and it still didn’t start, the ICP was clean with no oil evident on the end at all.

Last edited by Robert W Sorensen Jr.; 06-28-2019 at 07:05 PM.
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post #8 of 13 Old 06-28-2019, 09:09 PM
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How old are your batteries? I had some batteries closer to the end of their usefulness. My truck would crank, but not start. Repeat, it would. When the batteries got weaker, it wouldn't start. There is a lot of stuff needing power during startup that's one of the reasons we have two.

Something to check.


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post #9 of 13 Old 06-28-2019, 10:21 PM
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BTW - I merged your two posts into one. Don't need two post saying the same thing. Please keep your discussion here.


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post #10 of 13 Old 06-28-2019, 11:35 PM
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Try unplugging the IPR (back of HPOP) this should set it to default setting. Sometimes no starts/running rough could be a faulty IPR.


in addition to that, may also be your cam position sensor which are notorious for going out and leaving you stranded. You can get to that underneath your vehicle.

'02 F-250 7.3
180/80% Stage 2 Full Force Injectors
S&B Intake
Hydra running Gearhead Tunes
5" Straight Pipe
Bellowed Up-Pipes
Bilstein 5160 Resi's
Rough Country Dual Steering Stabilizer
etc, etc
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