cranking issue

  1. A

    Longer than usual cranking time

    I have a 2006 Chevrolet duramax LBZ 200,000 miles. I only drive the truck about once a week. And for the last few weeks, it takes longer than usual to fire up. I’ll turn the key and let the glow plugs warm for about 5-10 seconds. When I try cranking, it will turn over for a solid 5 seconds or so...