I have an 02 3500. I had all the injectors replaced at the dealer just over a year ago. Now, about 15000 miles later, the injectors are starting to mess up again. The truck is blowing white smoke. I took it to the dealer today and they said 2 of the injectors needed replace, but it wouldn't be covered, so I'd have to pay $1400. I told them not now. When I picked up the truck, I talked to the mech. and he said that they were clogged up. He said that one was stuck wide open. So, what would anyone recommend to clean the injectors and also, what would cause it? Bad fuel?
