Okay I know this is way off topic but I really need help. I replaced the fuel pump on my buddy's 01 Lincoln Town car. It started right up. I let it run for about ten mins before turning it off. Started and turned it off about 5 times. Everything seemed fine. About 20 minutes later my friend tried to fire it up and it wouldn't start. Hasn't started again since. I can hear the pump. The relay is working the safety switch is not tripped. I checked the fuel pressure at the fuel rail and I have fuel but don't know exactly how much pressure. I don't have a gauge. I don't know what it could be. Please help. He had paid me already and I feel bad his **** isn't fixed.