i was going to pick up a couch and was baking into the driveway when my truck started pouring out smoke not very thick but enough to see it i don’t know what’s going on it just idles rough sometimes in the city it doesn’t like it at low rpms i have to keep my foot on the gas and brake pedals together or it will stall then cut off or sometimes just cut off altogether the oil is fine and the water is good and the transmission fluid should be aswell sometimes i have to give it gas when starting up or it will just die out i had all the coolant hoses replaced so their about 1 month - 3 months old now with little to no use and none of them leak it smoked for about 15-25 seconds then went back to normal

 

If your truck leaks fluids anywhere, you will get some smoke.... Usual culprit is valve cover gaskets. Oil drips onto the exhaust, and burns off.