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Discussion Starter #1
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????
 

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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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Discussion Starter #5
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.
 
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