i have searched most of this evening for any ideas on what could be wrong with a customers vehicle at my shop its a 03 f350 6.0 stock, he bought the truck used last year and it was doing great but recently he took it to a local ford dealer for something minor and they told him he had 2 injectors bad, so he payed to have them replaced and now the truck runs with a miss and has become in 30-40 degree mornings hard to start but no smoke while cranking or when it fires. He thinks its glow plugs but i'm not completely sold on that idea, but it has a dtc in the truck but i can't pull them and i'm using a genesis scanner updated to 4.0 and all i get is communication error so i'm a lil stumped these 6.0s are still fairly new to me (cummins guy) but i'm willing to learn, so any help i'd love guys this is his bread and butter truck for his business
-Jon
-Jon