Im new to the site and was wondering if anyone else has had the same problem as me and found a fix for it. I have a 1998 gmc 2500 with the 454 in it. I only drive it around 4 times a month and it sits in a heated garage. It will always start fine just seems like after its warm and i shut it off it takes a little more cranking to get it started agian then it should. Maybe 4-5 seconds before it starts. It also idles a little ruff and gets about 9 miles to the gallon. It has 107,000 on the clock. Truck has newer wires, plugs, fuel,and air filter within 8,000 miles but still same problem. Any help would be much much appreciated, love the truck just hate the starting problem!!!