Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello, I hate to hear you're having so much trouble. If it starts with supplemental fuel then the obvious cause is lack of fuel. There's a constant control relay module located on the passenger front strut tower that commands the fuel pump on/off. Has it been replaced yet?
Just a heads up I will not be available this evening so I will be checking my messages in the morning. Have a good night!