6.0L problems! need some help please!
My stock 2003 6.0 started hesitating a few weeks ago after towing a car and trailer (about 5,000lbs). Then it had a long crank time that eventually turned into a no start. Checked FICM and it was bad, 38V. Swapped it out with one that was from an 06 with a rebuild on it. Dealership did the flash on it and now it blows a lot of white smoke at idle and A LOT of black smoke when driving. Even if I'm slowly accelerating. Sometimes it will idle rough, sometimes its fine. I have plenty of power, turbo spools up fine. Been about 200 mi since I changed the oil, put in a new egr valve, I'm not losing coolant. No tunes, eot/ect delta is from 5-8 deg at all times. New radiator, only thing after market is the muffler. I have about 116,5xx miles on it. Sorry for being long winded I just need to get it fixed so my wife and I can take our trip to flaming gorge, Ut and tow our boat. So any help is appreciated!!!!