Well, my truck is on the flat bed headed for Bud at OC Diesel Shop in Mission Viejo CA. I will put up the symptoms and see who has the best diagnosis as compared to what Bud tells me in a couple days. First best guess gets a Navy Seabee T shirt.

Few weeks ago started getting a "miss" at 3/4 throttle and higher, in the mid RPM range. Only had it when I ran my street or tow tune. Ran great with the Extreme tune. (SCT Tuner, Innovative Diesel Tunes)

Changed out ICP and checked ever wire and connector i could for chaffing. Nothing.

On Monday morning it developed what I would call a lope. Sounded and felt like one injector was not firing. Once you got the RPMs up, it straightened out.

I parked it for 3 days will I was out of town. This afternoon I flew back in and jumped in the truck. Started it up. Lope was VERY pronounced. But seemed to subside when the operating temps came up.

A block out of the parking lot. I had ZERO power and tons of black smoke. Pulled over, let it sit. Started again. Ran great for a block. Same thing.
Pulled into a parking lot and thought what the hell, let me change out fuel filters.

Did that. Fired up, but still had no power. Now it wont start. Called tow truck, now it is off to Bud.

So what's the call?

Here is what I have done to the truck so far.

2004 F350, August 2003 Build on Truck and Motor
SCT Tuner
Full Gauges
Air Dog Pump and Filter
EGR Delete
2005 Intake (Got rid of the toilet Seat)
64 mm Non VGT Turbo
ARP Studs
New FICM (2 mos ago)

Only one question per contestant. (yeah, like that will work)

 

Wire harness isn't locked into the FICM.

 

I think your ficm went out again.

 

i second the ficm being out. has nearly the same issues. they were spread out over a month or two. i was really nervous when i started the truck and had zero pedal response and i was up in the mountains where i about 30 miles from the nearest town that had a mechanic much less a car lot. and 400+ miles from home

 

injectors and possibly ficm. Black smoke can be a stuck open or shorted injector, cold start miss that gets better is usually injector related. Get ficm voltages.

 

Back up camera isn't functioning........do I win?

 

You just might!!

 

My personal guess is injector related. I hope the FICM is not the issue. If it is, gonna have a talk with Swamps.
I've went through the connectors and harness multiple times, not that I couldn't have screwed it up, but I sure hope not. If it is the connector, I'm gonna give up shadtree'ing.

 

You might just win!

 

I would hope not injectors, the FICM is easier......

 

Just got a call from OC Diesel Shop. Looks like the FICM was mis programmed. They are reflashing now. Keep fingers crossed it is not hardware.

 

No luck. Injectors 1-3-5. Uhhgg. Is there any potential that a mis programmed FICM can damage injectors?

 

I think this gentleman won.

 

well heres the question did they do a ballon test to see if its all 3 injectors or just one. IMO with 1,3,5 down and the truck not starting....
I would have them replace 1,3,5,7 and install NEW INJECTOR HOLDDOWNS. failed injector hold downs is the biggist cause of this type of concern.

 

Not sure what tests they did run. I will ask. But I do trust Bud at OC Diesel Shop.
They are going to replace all four on that side. Is there any benefit of doing the other bank now? What is the likely hood the other side is gonna have probs?

Is there any possibility that the mis-programed FICM caused the injector failures? I know it is a stretch.

Oh well, play those games win those prizes.