So I have a 2001 jeep grand Cherokee with a 4.7. I had a no start but cranked over. spark was good. had no fuel pressure and pump was not pressurizing. checked all fuses and relays changed relay with a know good one still no pressure or start. so I exposed the fuel pump/sending unit and applied power to the orange wire for the fuel pump with a power probe and the fuel pump pressurized and it started and had about 55 psi of fuel pressure. now the jeep starts every time and has good pressure. thinking maybe something was stuck. thoughts?