hey guys I have a little problem that just started happening yesterday I noticed as I was driving yesterday that I had a mixture of white and black smoke coming out of my stacks and sometimes it was just solid white. So I threw in some injector cleaner. Today I started the truck up ran it very easily for a while then got on it to see if it would do it again and all black smoke luckily and a little more than usual. Then I shut the truck off to go into a store came back turned it on started driving and ALL white smoke I looked in the reflection of a store window and brake torqued it for a second and all that came out was white smoke! It seems to be going back and forth from solid black to solid white to a mixture. I have no idea what is going on.