Compression Ignition Addict
Join Date: Feb 2011
Location: upstate ny
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I have a 2003 6.0 with about 120k miles purchased used about a year ago. It has always started but runs rough until warm no matter if it's 30 deg. or 100 deg. outside temp, obviously worse in the colder months especially if not plugged in. I have changed the oil and fuel filter recently. No change in starting though it seems to run quieter and smoother once it's warm. I also used RevX at the oil change.
Is there anyway to know if it had the latest flash short of taking it to Ford and what else can I check myself?
You need to check your FICM voltage. You're showing classic signs of early FICM failure.
Do a search, and start your own tread. Being new I'll give you the benefit of the doubt, but people tend to frown on thread hi-jacking. Good luck!
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2005 Lariat CCSB F-350 SRW
300,000 miles and going strong
12" fabtech lift with 40" Xterrain's on M/T classic locks, Adjustable track bar, Bilstein 7100 reservoir shocks
Edge juice/attitude CTS, SCT with ID tunes, Snow meth. injection, Diamond eye 4" exhaust, 03 turbo, ARP studs, Sinister coolant filter
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Viair 450c compressor, dual 2.5 gallon tanks, air horns rated @115db