04. 5, had to replace engine at 98k, dealer replaced with long block?, also replaced #5 & 6 injector. They damaged injector pump on reinstall and had to replace it also. I took it back for excessive black smoke and oil leaks. They replaced trans lline damaged during engine replacement and said front seal was leaking so replaced it also. Service manageer stated smoke would go away once broke in. Well smoke got worse, engine oil leak still present and now over 100k and dealer says no longer any warranty. Took it to local diesel mechanic who had injectors tested, tested fuel pressures and flow, checked turbo boost, all tested okay. Mechanic also swapped MAP sensor from good running truck but made no difference. Inspection revealed dealer had used globs of silicone around front to stop/slow down leak (obviously to avoid more warranty work). Previous engine ran an Edge EZ chip and a muffler eliminator pipe, current engine is stock except for muffler eliminator. Any help as to the smoke/high egt would be appreciated.