hey guys wondering if you can help im new to this forum thing so..... well my truck is a 91 ford f250 4x4 7.3 diesel, pretty much stock but ip tuned up a little. well in neutral if you gas it up it blows black then when you let off it blows a puff of white. you can see here- http://www.youtube.com/watch?v=oLqk39NgpI4
so plz help me some said its the injectors.
so plz help me some said its the injectors.