cowman79
Full Access Member
Well today I noticed that when I started my truck when it was cold I had a black puff of smoke. I also noticed later that I evidently blew black stuff into the gravel when this happened. When looking at the gravel next to my exhaust it was speckled with black. I have never seen this before today. Also I drove the truck to town and when I restarted it after leaving my destination it puffed black smoke again. I am wondering if you could tell me what the black smoke would be caused from. I have new BB's and my injector pump is turned up two flats.