03 only starts when cold!! - Ford Powerstroke Diesel Forum
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  #1  
Old 12-28-2013, 11:35 AM
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03 only starts when cold!!

I have a 2003 6.0 with 105k on it. My truck will only start when it is cold. It runs great once it starts as well as starts up with a little bit of starting fluid. Any ideas on what this can be?
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  #2  
Old 12-28-2013, 04:09 PM
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Hpo oil leak for sure. Could be injector I rings to dummy plugs if so equipped.
You need to air test.
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Old 02-19-2014, 11:40 AM
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Mine is doing the same thing. Did you have any resolution?
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Old 03-08-2014, 09:23 AM
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I replaced the FICM with one from Bulletproof Diesel and no change in the truck. Where should I be looking now?
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Old 03-09-2014, 12:43 PM
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IPR Valve, ICP Sensor or FICM sync is usual suspects if FICM voltage is at 45-48V at key on and during crank. See below below videos for excellent troubleshoot on this subject

6.0 Crank - No Start Diagnostics:

Last edited by 5-Salt; 03-09-2014 at 12:46 PM.
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Old 03-09-2014, 05:35 PM
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Its sounds like a High Pressure Oil leak. Do you or know of someone that can hook up a scanner with data to check the high oil pressure while cranking?


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Old 03-19-2014, 08:15 AM
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Update: Bad ICP sensor. Unplugged it and it would crank right up. Replaced it. Also had 4 bad injectors. Truck runs great now.
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Old 03-19-2014, 10:58 AM
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Glad you got it goin


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