I went to my buddies shop the yesterday and when I came out I couldn't get my pick up to fire up. I finally switched tanks and got it to fire up. I drove to the gas station and shut it off and got fuel. I fired it back up and drove to the store. I came back out and it wouldn't start again. I couldn't get the fuel pumps to kick on. I checked all the fuses. It eventually started and I drove home. I shut it off and then fired it back up a few minutes later. I pulled it in the garage and shut it off and have not been able to start it since. I changed the pump relay, checked all the fuses, changed the fuel filter and fuel pressure regulator and still nothing.....I'm lost on what to do now.