Low voltage FICM...during am startup - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 10-13-2012, 03:12 PM Thread Starter
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Low voltage FICM...during am startup

The voltage goes down to 42-42.5 for a few seconds..then creeps up to normal. Been doing it for a few weeks! Is FICM going south????

2007 F-250 King Ranch SD SWB 4x4....
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post #2 of 5 Old 10-13-2012, 03:34 PM
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I would say so.

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post #3 of 5 Old 10-13-2012, 04:02 PM
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Could the batteries be getting weak, causing weak voltage to the FICM until the alternator kicks in?



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post #4 of 5 Old 10-13-2012, 04:12 PM
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Good question. I'm curious as well.


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post #5 of 5 Old 10-13-2012, 04:58 PM Thread Starter
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Will load test batteries.changed alternator last year,along with new interstate batteries for a powerstroke.i have been looking at atlas 40 for a while.guess with 155,000 its time to rebuild unit.

2007 F-250 King Ranch SD SWB 4x4....
155,000 miles
Edge CS..turbo timer..EGT..FP
Looney Wild tune dd
EGR Delete
New Ford updated oil cooler
New Ford HG's
ARP's
New ICP
Leveling kit
35" Mt's
4" MBRP Alum. tb exhaust
PMM coolant filter
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