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Old 08-10-2013, 10:47 AM
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I have a 2004 F350, It has been having stumbling issues when I first start it for about a week and a half. Having driven it in about a week and went to start it and it wont start. Hooked up computer to it got codes crank position sensor open and low voltage on all 8 injectors and ficm. Batteries tested and are good. Any info would be great. I'm thinking the ficm has taken a crap.
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Old 08-10-2013, 01:55 PM
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Agreed. ^^^
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Old 08-10-2013, 09:57 PM
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So I take it you agree with the bad ficm, what about it reading crank position sensor reading ope
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Old 08-11-2013, 01:24 AM
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Bad crank sensor or wire problem to the sensor. Visually inspect harness for broke wire or chafe spot.
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Old 08-11-2013, 04:53 AM
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Since you were trying to start, the crank sensor code could just be from extended cranking. Normally it would pop up with cam sensor as well though. But the FICM could be confusing the heck out of it too if it went belly up on you, which it sounds like
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Old 08-11-2013, 12:01 PM
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Do you have a scanner? Can you check cmp ckp ficm sync?


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Old 08-12-2013, 11:44 AM
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my buddy hooked up his scanner and the codes I listed earlier are the only things that came up. Nothing about the cam sesor. I tried starting it several times so that would make sense about the crank position sensor.
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Old 08-12-2013, 02:31 PM
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well, its possible that your crank sensor is bad then. As said before check the wiring and if it looks good, I don't think the crank sensor hurts the wallet that much...I can't recall the price but I think it was under 100. But before I even went back to that, I'd figure out that FICM issue...or maybe the entire harness is bad..but I would put money on the FICM being bad first. Sometimes if you take it to ford, they'll even put a known good FICM in just to be sure before charging you..then you can have it rebuilt yourself (much cheaper) or buy bullet proof so you know you never have the problem again. Once you have that angle straightened, then see if it starts and if that crank keeps popping up, if so, replace it. At least that's what I would do.
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Old 08-14-2013, 02:02 PM
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So I was able to check the ficm voltalge today, when I first turn the key to on postion while its buzzing it's at 30V then it goes up to 48.2V then when turning it over it drops to 24V. Guess I'm ordering a new ficm. Thanks for the help guys
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