Compression Ignition Addict
Join Date: Jun 2011
Location: Colorado Springs
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Looks like your batteries or alternator is going out. The FICM FLP and FMP (or whatever they are called) should be 12V. Vehicle power should be over 12.5.
Had the batteries load tested? Is alternator putting out juice? Should see 13.5 volts from the alternator...
2005 F-250 6.0L, crew cab, long bed 4x4
completed in 2011: STC update, new IPR, BPD EGR cooler, oil cooler rebuild, 6.4 banjo bolts, blue spring update, SCT X3, Insight CTS, 58V FICM, CCV Mod, DIY coolant filter (now gone), refinished turbo
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2012: ARP headstuds, OEM gaskets, standpipes and dummy plugs
2015: XDP coolant filter