Join Date: Feb 2014
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New to the forum, and I can't find the exact issue on search, not to say it isn't there, I just don't find it exactly. I have 2005 Stock FX4 with 160,XXX miles. I monitored the batteries about 6 months ago, and they were fine. However, the first cold snap they went completely dead. That likely started my problems. Three days ago I made a 75 mile trip, with no real problems. However, the truck has seemed a little sluggish lately. I have been getting a little smoke at crank up. The cranking cycle has also been a little longer. Later in day I made a short trip, truck slightly stumbled at about 30 mph, and went dead right there. Towed home and bought a ScanGaugeII. Showed no FICM output, no FICM sync. Checked for fuses, and a 50 amp fuse in the under hood box was blown (both sides of the visible contact were black.). Replaced with same scan readings (NO other codes). I needed the truck, so I decided to go at FICM alone. Purchased a FICM board at Advanced, and cracked open the FICM. It was pressurized so I knew there had been a problem. One side of the FICM was burned and charred (there was defininetly a fire in that box).
Charged the batteries (from all the diagnostic cranking) Replaced board and put back on truck. Following reading:
FICM output (reached 41 Max dropped during cranking cycle)
FICM no sync
ICR 44 (as I recall) (it was 0 at KOEO)
I think the FICM got so hot that it caused the second board to crap the bed. I have a new FICM on order from FICM FIXER. However, could the no SYNC be an issue other than the FICM.
2005 Stock 6.0 Superduty