New hpop, still no start. - Ford Powerstroke Diesel Forum
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  #1  
Old 10-04-2012, 08:28 AM
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New hpop, still no start.

2006 f250

Had a bad hpop in it, changed it and new ipr, got plenty of pressure now. Calling for 1350 and producing 1355. I've got FICM sync while cranking, and crank/cam sync. It tries to fire, but still won't start. Any suggestions?? We tried to start it off and on for 2 hours last night. Thanks in advance.


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Old 10-04-2012, 09:03 AM
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Do you have injector buzz?
What is your ficm pwr?
Ficm logic?
Did you pull the cap off of the top fuel filter and verify it is filling to top with fuel?
Sounds like the hpop has filled being you have icp pressure.
What values do you have with the IPR: KOEO/while cranking if you have a leak in hpop system the % will be high #s because the IPR will be closing trying to gain pressure in hpo system
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Old 10-05-2012, 04:21 AM
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Isn't there a small round screen in IPR that the oil passes through? If it get's clogged would that affect oil pressure enough to cause no start? Just thinking
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Old 10-05-2012, 04:27 AM
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Yea if its plugged bad enough, not uncommon for screen to get pushed in and small holes.

Do you have a scanguage?

Last edited by mhatlen; 10-05-2012 at 04:35 AM.
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Old 10-05-2012, 11:04 AM
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It's not clogged, it's new. We pulled it just to check and it was good. My ipr pressures are 1300 range. Getting a ton of white smoke while cranking, and it tries, but no go. I thinking a FICM problem honestly, just my .02 though.


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Old 10-05-2012, 08:52 PM
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See you have some kind of scan tool, is it able to read ficm logic/power?

ScanguageII is cheap and on the shelf at Auto Zone will read everything from pcm.
Best $160.00 bucks I ever spent on the truck.
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Old 10-05-2012, 10:07 PM
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Yeah I've got a computer. Ill post all readings In the morning. Any others that would help?


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Old 10-05-2012, 10:21 PM
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Yeah I've got a computer. Ill post all readings In the morning. Any others that would help?


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Old 10-06-2012, 04:20 AM
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You need to see the FICM main power, should be 48ish while cranking.
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Old 10-09-2012, 03:51 PM
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Okay, here's my reading while cranking. The injector buzz is very faint on 2 different ficm modules.

Before cranking
Inj control press-37.95 psi
Inj ctrl press desire-0.00 psi
Fin main power- 47.92 volts
FICM vehicle power- 12.48 volts
FICM logic power- 12.48 volts
Vehicle power volts- 12.44 volts
Inj press reg duty cycle- 15%
FICM sync- no
Sync cmp/ckp- no

While cranking-

Inj control press-1314.63 psi
Inj ctrl press desire 1336.15 psi(battery lasted 5 seconds)
Ficm main power-46.43 volts
FICM vehicle power-8.99 volts
FICM logic power-8.49 volts
Vehicle power volts-6.50 volts
Inj press reg duty cycle-50%
FICM sync- yes
Sync cmp/ckp - yes

Help me. This truck is kicking my tail end. Lol


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