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post #1 of 14 Old 01-01-2014, 05:31 PM Thread Starter
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No Start Hot

Guys, bare with me. I know there's tons of info here and other places. I have what I think is a unique issue (doesn't everyone). Here goes...

Here's the run down:
Truck had long crank cold
Truck would not start cold (luckily in driveway)
Replaced: stand pipes, d-plugs, STC fitting, FICM
Installed IPR GENII EGR delete and up pipe.
Reconditioned turbo.
Cleaned egr and reinstalled.
All new filters and Rotela T6
Truck started and ran for a week during very cold weather.
Now truck will not start when hot.
Conducted HPOP system air leak test with adapter thru ICP port. No leaks detected.
Installed known good IPR. No change. Will not start hot.

Going thru this list just made me realize I had not conducted air test after engine was warm!!! If I have a no start after truck heats up, probably should test under that condition! Duh...


Longer thread posted here: http://www.ford-trucks.com/forums/12...sues-help.html

Thoughts?
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post #2 of 14 Old 01-01-2014, 06:41 PM
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What are your:
ICP values at hot crank
IPR values at hot crank
FICM voltages
Fuel pressure
Battery voltage at crank
RPM


2006 F250 LARIAT CCSB 4X4: Edge CS2, ARP Studs, O-Ringed Heads, X4 PHP 65 HP Custom Tow Tune, Atlas40 Ficm Tune, CAT EC-1 Coolant, IPR Coolant filter, Fass-125, turbo-back SS 4" pipe, Corsa muffler, 6.4 Banjo's, 6.4 starter,DC Power 270 amp alt, 2/0 cables, Die Hard Platinum AGM, 7" lift w: Icon Progressive Coil Springs, 2008^ Carli/Deaver rear springs on fatty-daddy 38/15.50/18 Toyo's
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post #3 of 14 Old 01-01-2014, 08:57 PM Thread Starter
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Quote:
Originally Posted by mhatlen View Post
What are your:
ICP values at hot crank - 2.6mPa
IPR values at hot crank - 84%
FICM voltages - 48V
Fuel pressure - unknown
Battery voltage at crank - 12.6V
RPM
If there's anything else, just let me know.
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post #4 of 14 Old 01-03-2014, 08:27 AM Thread Starter
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Anyone? Bump. I have made an acquaintance at the local Ford dealership with a master tech. He is going to assist in some diagnostics this evening.
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post #5 of 14 Old 01-03-2014, 09:03 AM
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The ICP figure i don't understand. Can you get that in psi ?

But the IPR value is crazy high. It is closing up trying to build pressure. Did it hit that figure at beginning of crank or was it a long crank time ?
Try to get the ICP #'s but what the truck does need to start is a minimum of 500 psi. The FICM turns on power for injectors at that pressure.


2006 F250 LARIAT CCSB 4X4: Edge CS2, ARP Studs, O-Ringed Heads, X4 PHP 65 HP Custom Tow Tune, Atlas40 Ficm Tune, CAT EC-1 Coolant, IPR Coolant filter, Fass-125, turbo-back SS 4" pipe, Corsa muffler, 6.4 Banjo's, 6.4 starter,DC Power 270 amp alt, 2/0 cables, Die Hard Platinum AGM, 7" lift w: Icon Progressive Coil Springs, 2008^ Carli/Deaver rear springs on fatty-daddy 38/15.50/18 Toyo's
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post #6 of 14 Old 01-03-2014, 09:09 AM Thread Starter
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That's roughly 300psi. I have unplugged the ICP in order to default PCM with no change. Yes, IPR # with long crank.
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post #7 of 14 Old 01-03-2014, 09:53 AM
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That's a problem fore sure. Like I said until the HPO system hits 500psi the injectors won't come on.
What I would look at first is your IPR. Pull it and inspect screen for damage and spool for any foreign material.


2006 F250 LARIAT CCSB 4X4: Edge CS2, ARP Studs, O-Ringed Heads, X4 PHP 65 HP Custom Tow Tune, Atlas40 Ficm Tune, CAT EC-1 Coolant, IPR Coolant filter, Fass-125, turbo-back SS 4" pipe, Corsa muffler, 6.4 Banjo's, 6.4 starter,DC Power 270 amp alt, 2/0 cables, Die Hard Platinum AGM, 7" lift w: Icon Progressive Coil Springs, 2008^ Carli/Deaver rear springs on fatty-daddy 38/15.50/18 Toyo's
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post #8 of 14 Old 01-03-2014, 09:58 AM Thread Starter
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Had it out three time and installed a known good one on the last. Never had any damage or debris on the screen. Worked instantly when performing air test.
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post #9 of 14 Old 01-03-2014, 10:32 AM
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What year is truck?

Did you hear any leak on air test. You most likely have a leak or bad HPOP.


2006 F250 LARIAT CCSB 4X4: Edge CS2, ARP Studs, O-Ringed Heads, X4 PHP 65 HP Custom Tow Tune, Atlas40 Ficm Tune, CAT EC-1 Coolant, IPR Coolant filter, Fass-125, turbo-back SS 4" pipe, Corsa muffler, 6.4 Banjo's, 6.4 starter,DC Power 270 amp alt, 2/0 cables, Die Hard Platinum AGM, 7" lift w: Icon Progressive Coil Springs, 2008^ Carli/Deaver rear springs on fatty-daddy 38/15.50/18 Toyo's
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post #10 of 14 Old 01-04-2014, 10:07 AM Thread Starter
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2005 lariat. No sound in air test. Had master tech confirm while engine was warm. As he was explaining the HPOP and STC, he mentioned the orings below the pump. I can't recall installing them... If I didn't, once the oil gets warm, the lpop builds enough pressure to blow the oil out the HPOP inlet. My understanding of the HPOP is it's a pressure pump only and will not suck. Does this sound logical?
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