6.0 No Start
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Freshman User
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From: Fort Ripley MN
6.0 No Start
I have a 2003 F350 6.0 Built 03/03 cranks but will not start. Battery voltage is 11.5 volt Fuel seem good and fuel pressure at secondary fuel filter is 50 PSI. I have a Snap On analizer connected to vehicle I have over 500 psi ICP, 48 volts FICM. I did have a logged fault for camshaft perfomance low and now during cranking the FICMSYNC stays no. Does anyone have any knowledge to further test the camshaft sensor?
Fleet Owner
Joined: Nov 2003
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Most of the time the camshaft sensor code is a result of the no-start, not the cause.
Is your FICM voltage at 48V KOEO and Cranking?
Battery voltage seems low also.
Have you checked for chaffing on the FICM wiring harness?
I don't think this is your issue w/ the no-start, but if you are at 50 psig fuel pressure while cranking, you will be well below 45 psig when running. You need a new fuel pressure regulator kit.
Is your FICM voltage at 48V KOEO and Cranking?
Battery voltage seems low also.
Have you checked for chaffing on the FICM wiring harness?
I don't think this is your issue w/ the no-start, but if you are at 50 psig fuel pressure while cranking, you will be well below 45 psig when running. You need a new fuel pressure regulator kit.
Post Fiend
Joined: Jul 2005
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Charge / load test the batteries, clean contacts, then verify that subsystem before you go on.
Any electrical issue mean you cannot do a valid FICM test, and also, low voltages have this nasty habit of screwing up PCMs, Instrument panels, introducing errors in volatile memory, or just plain glitch up the system.
Any electrical issue mean you cannot do a valid FICM test, and also, low voltages have this nasty habit of screwing up PCMs, Instrument panels, introducing errors in volatile memory, or just plain glitch up the system.
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Freshman User
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From: Fort Ripley MN
Ficm voltage is 48 volts during cranking seen on the analyizer
camshaft fault was a history code not current and is gone after diconnecting batteries for charge and load test.
I am going to look at Chafing now.
Also engine does try to fire on what seems acouple of cylinders. Seems like not enough fuel being delivered or at incorrect time
camshaft fault was a history code not current and is gone after diconnecting batteries for charge and load test.
I am going to look at Chafing now.
Also engine does try to fire on what seems acouple of cylinders. Seems like not enough fuel being delivered or at incorrect time
Lead Driver
Joined: Sep 2007
Posts: 8,180
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From: Scio, OR
I have a question about this statement. I show 50psi at key on, before starting. It maintains 50 PSI, pretty much all the time. After I start, while I'm driving, at WOT, etc. Is this not normal? It does vary slightly below and above the 50 PSI, but less than 5 PSI either way.
I have the updated spring kit, because I'd rather have it a bit higher, I just haven't had a chance to put it in yet.
Post Fiend
Joined: Oct 2009
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From: N. Fort Worth, tx
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Freshman User
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From: Fort Ripley MN
I do not have a scope But on my service tool the FICMSYNC is no and does not switch during cranking I assume it should switch to yes
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Lead Driver
Joined: Sep 2007
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From: Scio, OR
I will do that, and try to get that spring kit in there. I have the correct tools now, but unfortunately, the spirit is willing but the body is falling apart on me. It's getting a lot harder to crawl around a truck engine these days.
Fleet Owner
Joined: Nov 2003
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Man do we have a lot in common .... !!!
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Freshman User
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From: Fort Ripley MN
Well I am back on project tonight found no chafing on harness
replaced both batteries now have12.5 volts at ficm.
Fuel pressure 50
LPOP comes up to normal range during crank
HPOP pressure comes up to 530psi
ICP voltage .83V
Air filter is removed all looks normal
Performed KOEO test all ok
Perfromed injector buzz test no codes present
Engine fires during cranking but will die 5 seconds after starter disengages
I suspect 2 or more injectors This is my brother-in -laws truck and it was ran low on fuelpressure multible tiimes last winter due to fuel gelling.
Is there a way to test which injectors have failed if that is the problem
replaced both batteries now have12.5 volts at ficm.
Fuel pressure 50
LPOP comes up to normal range during crank
HPOP pressure comes up to 530psi
ICP voltage .83V
Air filter is removed all looks normal
Performed KOEO test all ok
Perfromed injector buzz test no codes present
Engine fires during cranking but will die 5 seconds after starter disengages
I suspect 2 or more injectors This is my brother-in -laws truck and it was ran low on fuelpressure multible tiimes last winter due to fuel gelling.
Is there a way to test which injectors have failed if that is the problem