FICM health check - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 07-10-2018, 06:16 PM Thread Starter
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FICM health check

Hi, I have a 2006 f250 6.0 with 210,300 miles the ficm is reading 46.5 to 47.5 volts on my edge programmer. This is a replacement unit by ford at 90,000 miles. Should i be concerned as i don't see 48v anymore? 1 battery was at 13.4v and the other 13.6. They both have been changed. At what point should i look to change it again?
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post #2 of 7 Old 07-10-2018, 06:32 PM
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Hi, I have a 2006 f250 6.0 with 210,300 miles the ficm is reading 46.5 to 47.5 volts on my edge programmer. This is a replacement unit by ford at 90,000 miles. Should i be concerned as i don't see 48v anymore? 1 battery was at 13.4v and the other 13.6. They both have been changed. At what point should i look to change it again?
I'd be looking into that asap, have the batteries load tested first, then the alternator. If you still read voltage under 48, give FICM Repair a call. Low FICM voltage can destroy injectors.
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Last edited by SparkyF250; 07-11-2018 at 06:51 AM.
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post #3 of 7 Old 07-11-2018, 05:44 AM
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Ford specs say the FICM is considered good if the volts are above 45, I believe.


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post #4 of 7 Old 07-11-2018, 05:48 AM
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Ford specs say the FICM is considered good if the volts are above 45, I believe.


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@s91ford anything above 45 is "ok" by spec

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post #5 of 7 Old 07-11-2018, 05:50 AM
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Ford specs say the FICM is considered good if the volts are above 45, I believe.


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post #6 of 7 Old 07-11-2018, 06:11 AM
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I stand corrected, but it'd still make me nervous

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post #7 of 7 Old 07-11-2018, 06:20 AM
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If it's at 45v now, it's only going to get worse over time, IMO. I'd be proactive if I were you and get it upgraded with Ed or otherwise replaced with a quality option. Also a good idea to check and/or upgrade the battery/alternator wiring while you're at it.
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