OK, here's the story:
Shortly after delivery and in service, the
engine would die when lifting the
plow via central hydraulics.
Dealer stated RPM's too low, reflashed it, problem went away until this year. Problem is back again. Can't tell for sure but it sounds and looks like the RPM's are a couple hundred less on this
truck than my other 2. RPM's drop to around 400 when raising plow under no load, so it's not a surprise that it will stall under lifting the plow while there's a load out front. So, bring it in to the dealer, they can't find a problem other than EGR, no kidding it's unplugged. They replace the EGR and I go plow with it. Truck has virtually no power, can't even spin the
tires in snow. And takes about 10 seconds for the turbo to spool. I get slightly pissed and unplug the EGR again. Truck is now 100% better. I can actually get the tires to spin now and turbo lag is slightly decreased.
Problem is, the
truck is still a complete dog compared to my other 2. And a severe dead spot to the point I'm going to grenade the tranny as my '05 engages immediately and that is what I normally
plow with so once I shift I'm stepping on the go pedal and this one don't go.
Any ideas? I'm going to try to find an
aftermarket shop as the dealers in my area are idiots and have no technicians that have a clue. Case in point, in the above story, the
dealer called Ford and was told to install a 140 amp alternator (which I'm 99% sure it has) until I informed this rocket scientist of a service manager (the second time) that my plows don't run off electric, but the
clutch pump and that is what is killing the engine.

Not low voltage. Complete and total morons. I'm about at the point of throwing the
warranty out the window and just having someone with at least half a frickin' clue work on my trucks.
So any other ideas as to why I can get out walk around the truck, take a coffee break and get back in then the turbo spools and away I go? Turbo has been replaced once, and 4 injectors replaced. I think it might be 1 or 4 of the other injectors, but the dealer says they're all within normal operating range.
PS To get the original dealer to replace the 4 injectors, I almost had to hold a gun to their head, seriously. After almost a full year of living with the problem, I told them it wasn't right, fix the problem and I'm not taking it back until you do. Then magically they found the problem. Maybe it's just my charming personality. But I'm a little sick of dealers who can't start a work order on my trucks without contacting Ford first to see if that's OK to use up the paper.