Good morning folks! I have a stock '96 Cherokee with a new fuel pump. When I turn the key, the fuel pump runs for a minute or two before turning off. The Jeep will not start until the pump turns off. After that it starts and runs fine. Fuel pressure is 48 psi as soon as the key is turned on, and holds at 45 psi for hours after key is turned off. After the first delayed start, it starts and runs all day with no issues. The problem is only after sitting overnight. What do you think?