Since getting my 98 GT, it has been a hard starter. I figured out that I can turn the key on and off three times to the accessory position and it will start on the third turn. For this reason I have been listening obsessively to the fuel pump sound. It has sounded normal until today. It made a strange grinding sound. Should I go ahead and replace it based on this? I have not been able to have the fuel pressure checked yet. What should I do ME?