New Member Introductions!
hey you guys i need help. my truck is a 91 ford 7.3 idi 4x4. with 5in stack. when i gas her up in neutral it blows black smoke and its suppose to but when i let of it puffs out white smoke. you can see it here- http://www.youtube.com/watch?v=oLqk39NgpI4
when i bought it, the pump was turned up...