2004 or 2006?
I know the earlier 6.0L had some troubles, wondering if the 2006 engine might be better. 2006 should also have the 5spd auto, would I see any better fuel mileage from the 2006?
2004 Powerstroke - Ford Truck Enthusiasts Forums
2004 depends on the build date of the engine for updates over 2003 and 2006 was known for the high pressure snap to connect fitting failure. Cold starts with a minor leak, no start when hot. If you can run an OASIS report from the dealer on the 2006, the Snap to Connect may already have been done.








