It may have a little extended cranking but it starts every time. This is a 2003 GMC extended cab 4X4 with a 6.6 Durmax 6.6 diesel with a automatic trans. The fuel mileage seems to be ok but it is does seem to be lazy.
No. I have replaced to fuel filter and the air filter. If I steadly increase te speed it does ok, but when the throdle is open quickly It stalls but does not die out.