Long crank time only when cold - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 09-22-2013, 07:30 PM Thread Starter
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Long crank time only when cold

Just wondering if anyone can help me with this issue? I have a 2006 ford f250 it has 111000 miles. I have 4" exhaust s&b intake and a sct livewire, egr delete and new oil cooler. If I let the truck sit overnight when I go to start it in the morning it cranks for 10+ seconds and after it fires sometimes it lets out a puff of white smoke, the truck runs fine doesn't miss or idle weird and once it has been started the first time it will restart without a problem, another issue I have noticed is sometimes on WOP the truck feels like its cuts in and out a little bit like its searching for fuel.
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post #2 of 6 Old 09-22-2013, 08:10 PM
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WELCOME to the site! What are your FICM volts? If the ficm is weak it can effect you start up a lot. Also what oil are you running? I was running the plain ole Rotella and then switched over to t6 and that gave me a big difference!

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post #3 of 6 Old 09-23-2013, 03:35 AM Thread Starter
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I am running mobil 1 full synthetic 5w-40 and my ficm volts are from 47-48. On my livewire I have seen it bounce down to 46.5 a few times but usually its always at 48
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post #4 of 6 Old 09-23-2013, 03:41 AM
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What about ICP volts and IPR duty cycle %? You should be seeing at least .84 volts while cranking...

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post #5 of 6 Old 09-23-2013, 03:47 AM Thread Starter
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I guess I havent checked that. I will check that tomorrow morning. Wouldn't that cause it to always start hard not just the initial start
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post #6 of 6 Old 09-25-2013, 05:01 PM
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have you had the time to look at your truck and have you figured out your problem yet. my truck has been doing the same thing for the last year to almost 2 years i haven't had the white smoke yet but anyways i took my trucks to ford and had them look at it and they said everything look good. on my truck they think it might be dummy plugs and stand pipes so i am going to try that and see what happens. my stc has been replaced so i now it not that. let me now if you figure it out. thank you so much i have been chasing this for a while now. thank you for your help if you can.
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