Rough running with P0263 Code

[bjdutch2005]

I am having problems with my 2007 6.0 that is all stock, with 139,000 miles. Here are the symptoms:

1. Intermittent white smoke and loss of pedal. Sometimes a lot of smoke, sometimes a little. If I put the truck in neutral and let it run for about five seconds, the pedal comes back and no further problems.
2. Rough running when vehicle is accelerating around 45 and above. Usually this happens when going uphill. Can't really feel it going downhill.
3. The only codes I can pull are P1000 and P0263.
4. No check engine light.

Sometimes this all goes away. No problems trying to pass or go uphill. More often having problems than not, but still intermittent.
I have read through the posts and this is what I have done since the beginning of this problem:

1. Changed oil, filter and both fuel filters. I thought I might have gotten a bad batch of fuel with water in it.
2. Living in Colorado, I have used anti-gel additive for the cold and disperse water.
3. Removed EGR. It was a mess. I cleaned it up to the best of my ability and replaced it. I thought the truck was running better. It did run perfect for about 30 miles and then back to the same problems.
4. Checked coolant. NO loss of coolant.
5. Fuel mileage seems normal, 15 mpg+. Maybe a little low, but attribute that to the cold.
6. Batteries undone over night last night to reset anything it could.

I am thinking either an injector problem, injector pump problem, EBP sensor (if this is a player), or maybe a bad EGR. Any ideas?

Any help would be appreciated. We are on our Christmas road trip into Las Vegas, NV today if everything goes right. If anybody, knows of a reputable diesel mechanic in Las Vegas I could take the truck to Monday, I would appreciate it.

Thanks in advance.

[SMOKESKULL]

The messy EGR valve is the first clue. Is the truck using antifreeze? Perhaps a bad EGR cooler? P0263 is an #1 injector fault. Could possably be the white smoke if its not using coolant. Good luck,

[bjdutch2005]

I put the battery cables back on this morning and the truck fired right up in 8 degree weather. It started warming up and smoothed right out. I did have a P0611 code for the FICM. This is a first. I wonder if it is from having the battery off.

I still cannot see any antifreeze usage.

The EGR Valve was covered in carbon. I figured after 139000 miles having some carbon on it wasn't a bad thing. I considered it a mess since it wasn't shiny, like it was when I put it back in. There wasn't sludge like I had read about with the EGR cooler. Plus, I didn't see anything down in the hole where the sensor came out of.

Well...we will see how the truck runs today. I am still leaning toward an

[teamroper60]

The P0611 is telling you that the FICM is about to shoot craps on you.

[Liam]

My 03 was gummed up that bad in EGR housing that I had the engine shop dip it twice to get clean, Also replaced cooler at same time. Cured my problem.