Truck just died on the way home from work.

[milehighkingranch]

As the title said just quit running when slowed down for the exit ramp no refire and no glow plug light either. Anyway had to have it towed to the dealer where it now sits waiting to see what they come up with,was wondering if anyone has an idea of what i could be looking at,fuel,electrical,any help would be welcomed thanks in advance.