Crank no start, read no start thread - Ford Powerstroke Diesel Forum
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Old 06-04-2013, 07:46 PM
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Crank no start, read no start thread

Hello, I have a 2005 6.0 all stock, I've had my fair share of crank no start issues.

1st it was the FICM which was replaced
2nd I replaced 4 injectors that were bad, did standpipes and dummy plugs along with blue spring update.

Yesterday driving home file guage read 1/4 full. Truck started sputtering and loosing power, pulled into the fuel station and it died, had to coast to the pump. Thought I could be out of fuel so I filled it up. Did a KOEO cycle 3 times then tried to start to no avail. Tried this a few time. Still no start so I had it towed home. Bought a scan guage 2. Opended fuel blow and it is filling up pretty quickly with fuel and filter looks clean.

ICP - 800+ when cranking
FICM - 48.6V KOEO 49V cranking
Batteries are new.

Help would be much appreciated.
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Old 06-04-2013, 08:19 PM
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Next step, you need to check the SYNC. If you get rpm, it isn't the crank position sensor it is more than likely the camshaft position sensor, plug or wiring.
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Old 06-04-2013, 08:22 PM
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I was just outside checking that. looks like my SYC is not working. i will go out right now and check the RPM.
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Old 06-04-2013, 08:25 PM
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RPM registered at 148
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Old 06-06-2013, 07:35 PM
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Quote:
thanks for your help yesterday. she still wont start, replaced the CMP sensor. but then i realized the ICP wasnt plugged in , so i plugged it in and cranked. ICP read 0 KOEO, and 1 cranking, do you think this is the IPR, or HPOP? I took off the IPR, screen was intact, but it looked like there were a few little black particles on it. any help will be much appreciated.
I may not understand what you are saying. Just to confirm:
the SYNC at "1" during crank . If so, this is good.
If the ICP (with it plugged in) is "0"during cranking then you have a HPO issue. Unplugged it is a false signal (800ish psi) to rule out a bad ICP sensor.
What is the IPR reading during cranking?

If it is an HPO issue, you need to get air to it to find the problem.
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Old 06-06-2013, 07:37 PM
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ICP - 0-1 durring crank
IPR - 44-45% durring crank
SYNC was 0 durring crank

just replaced the Camshaft sensor. have the turbo pulled out right now so i could pull the IPR valve and visually inspect, screen is in good condition.
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Old 06-06-2013, 07:46 PM
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Sometimes you will get "0" sync and it will still start as long as it gets one FICM sync. Your biggest problem is the ICP. The longer the crank, you will probably get more IPR but with 45% you should have 1500psi in a good HPO system.

If you can, bench check the IPR. If not, put it back in and air test your system. it will take a few seconds to purge oil out of the rails before you hear any air. Once you do, command the IPR closed and listen for leaks. At 0 ICP, you should easily find it. You may need to take the cover off the oil filter to hear a pump failure. 0 pressure is a massive failure, so it may be STC.
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Old 06-06-2013, 07:53 PM
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Think imma order up a STC update fitting and a new IPR. ill let you know what I find.
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Old 06-15-2013, 03:30 PM
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Little update, and hopefully some help?

Today I replaced the IPR valve, and the new was read the same as the old. 44.4-46 or so
I updated the STC fitting. and still it does not want to start. could anyone possibly guide me as to what i should do next? what else to check for.
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Old 06-15-2013, 04:33 PM
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How long did you crank on it? It takes awhile for these motors to build enough oil pressure to fire it after working in the HPO system

Sent from AutoGuide.com App
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