Today pulling a trailer only about 2600 pounds i let of the fuel and went to get back on the fuel running about 30 mph and truck tried to shut down but it pick back up started smoking real bad kinda of white smoke i was only about half mile from home it made it but was smoking like crazy when i cut in my driveway it quit but started right back up and is running fine now.What would cause this injector or turbo maybe?I am waiting on to cool down and then i was going check the oil and see if it is overfull.Any suggestions as to what you guys think it might be?