For the past yearI have had problems with my truck (2001)not starting at times, I orginally thought I had fuel pump problems but after checking the pigtail connections at the fuel pump and fuel tank pressure switch I could get the truck to start. After this when the truck failed to start I could just unplug and replug the fuel tank pressure switch and the truck would run fine. I never have a problem when the truck is running only when I start. I replaced the pressure switch and thought I had the problem fixed untill yesterday. I did the usually unplug and replug and it starts fine. I have no SES light on.