I got a 99 blazer 4.3, I got a starting issue. If my blazer sits overnight for several hours, it starts up fine. But if I drive it to the store, shut it off, and then try to start it again, it takes 2 or 3 tries to start and I have to pedal it and it will finally start. Runs fine after that. I have had the fuel pressure checked and it is getting in the high 50's and running drops a little, not much, so I don't think it is the fuel pump. So what do you think might be the issue?