just today my truck wont start first try after sitting a while. if i shut it off and try to start it right away it starts fine. if it sits i have to try twice. i bought this truck 4 years ago and it had the same problem at that time and the dealer said it was the fuel pressure regulator bleeding down and its was in the tank. they fixed it before i bought it. can anyone confirm this or is it something under the hood? i really dont want to dig into the tank. by the way its a 6 liter thanks!!