Help I have a 93 E-150 Van with a 302 V-8. The engine was installed 14 months ago. It is a Ford Factory Rebuilt. I had new injectors, new plugs, new wires, new EGR valve, new Purge Valve, new cap and rotor(replaced again recently) new Fuel Pressure Regulator, new MAP sensor, new Air, Gas, oil filters, new water pump.
It was running fine no problems. two days ago after the van sat for three days I started it up and headed home, about a 75-80 mile trip. First after about 15 minutes the Check Engine light came on, and after another minute or so it started to bog down when I excellerated. Each time I tried to push hard it would not respond, it felt like a fuel problem. I replaced the fuel filter the next day and checked for any vacuum and fuel leaks, everything seemed fine. I took it out for a hard road test, it responded fine excellerated fine plenty of power and no hesitation. It was running and idleing fine.
I went to start it on the next day and it started then died out after about a minute, I restarted and the same thing, it will keep restarting then dieing out. Can it be the ignition module? or is it more likely fuel problem? Please some one help!!!
PS I no longer trust the dealer that installed the engine, as they kept diagnoising wrongly when the engine was first replaced. The kept telling me the cap and rotor was bad and the air pump was shot, when it was running irradically. it was actually the fuel pressure regulator that was no good.