Join Date: Feb 2007
Location: Greenville, SC
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This morning my 2004 decided to stop running properly. On cold start (as cold as it can be in SC this time of year), the truck was not idling well. I left the truck at home for the day as a result. This afternoon, I pulled the codes with AE and got low voltage DTCs for all injectors. I ran the KOEO and injector buzz tests, both of which resulted in low voltage codes for 5 of the injectors.
The truck fired up properly at this point, but the FICM main power voltage dropped to 40v and stayed there while running. From what I have read, anything less than 47-48v implies that the FICM is faulty ... is this accurate? Should I pull the FICM and have it repaired at this point?
2004 F-250 Lariat Crew Cab FX4, Short Bed, 6.0L, PMM Coolant Filter