Hi guys I have a problem with an 06 f-350 with the 6.0. It will start fine but real bangs and misses after I have let it sit from 5 to 25 min warming up but it makes a minimum differance. When i try to drive the truck misses and bangs still with no power at all until it is driven for a few min then it warms up somemore and goes like normal. It has gotten more severe with the colder months approaching. Any ideas.