Lb7 with a bad knock and white smoke.
I just bought a 2002 duramax that has a real bad knock and lots of white smoke, still runs just no power and it has a lot of fuel in oil. I was thinking it could be injectors so I replaced one side (the side I think the knock was coming from) but it still done the same thing once I started it. Does this sound like injectors? Or will I be wasting money putting in the other side?