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Old 06-16-2010, 05:25 AM
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2005 F250 6.0 Wont Start Please Help!!!

I owe 2005 F250 which is Stock.. This issue started couple of months after I had my batteries replaced… Batteries were going out so I jumped it one or two times and went to ford and bought two brand new batteries and replaced them… Truck ran fine with no problems, couple of months later I started having issues with starting up the truck, I will drive it fine come to the store turn it off came back from the store turn it back on and it will not start, batteries have plenty power, it turns over fine, no engine codes it appears like it’s not getting fuel, it appears like it wants to start but then it will start up for 10 second work on 100 to 200 RPMs very low and turns off. I tired starting it couple of times and it once it starts it starts fine, run perfect no power loss or anything. Well that started happening more often and sometimes it does not won’t to starts right away I have to let it sit for couple of hours and then try it again and then starts perfect again. I change my oil regularly, change oil and fuel filters, I have also cleaned my EGR valve….. Could it be my Fuel Pump or could it be FICM?? Thank you…
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Old 06-16-2010, 05:42 AM
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I'd say FICM. I'm no expert though

Is it more of an issue when the engine is warm, or does that not make a difference?
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Old 06-16-2010, 05:51 AM
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It could be a bunch of things, but I would lean towards a High Pressure Oil leak at the STC fitting. Do you have a diagnostic tool to measure ICP, ICP demanded, IPR duty cycle and FICM voltage while cranking? This will help you determine which system you need to look at more closely.
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Old 06-16-2010, 06:17 AM
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Quote:
Originally Posted by 2006PSDSD View Post
I'd say FICM. I'm no expert though

Is it more of an issue when the engine is warm, or does that not make a difference?
it's more when the engine is warm.....it starts up good when it's cold
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Old 06-16-2010, 06:19 AM
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Quote:
Originally Posted by Evil Eye View Post
It could be a bunch of things, but I would lean towards a High Pressure Oil leak at the STC fitting. Do you have a diagnostic tool to measure ICP, ICP demanded, IPR duty cycle and FICM voltage while cranking? This will help you determine which system you need to look at more closely.
I do not have the tool, i can take it to the dealer and let them scan it...
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Old 06-16-2010, 06:19 AM
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Definitely sounds like STC fitting on the High Pressure Oil Pump.
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Old 06-16-2010, 06:19 AM
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Quote:
Originally Posted by 0CooL View Post
it's more when the engine is warm.....it starts up good when it's cold
I'd do what Shawn said then, check oil pressures when the problem happens. STC fittings go out somewhat regularly, and they now have an updated fitting for a remedy
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Old 06-16-2010, 08:54 AM
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Should I just go ahead and replace the STC fitting with the updated kit that I have read about on the forum here kit # 4C3Z-9B246-E (does anyone have step by step installation for this kit). How do I check my oil pressure?
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Old 06-16-2010, 09:19 AM
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You'll need a scan tool to check it
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Old 06-16-2010, 11:34 AM
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Quote:
Originally Posted by 0CooL View Post
Should I just go ahead and replace the STC fitting with the updated kit that I have read about on the forum here kit # 4C3Z-9B246-E (does anyone have step by step installation for this kit). How do I check my oil pressure?
Which has now been superceded to 4C3Z-9B246-F to include new IPR valve screen and o-rings.
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