i have a 2000 jimmy,and i got the call from the wife telling the truck wont start shes stuck at work. when i got there i had an idea it was the fuel pump because the night before the car wouldnt start,but after a few min it started,today it will not turn over. i cant hear the pump prime when i put the key on run.the car is cranking fine and shows no signs of catching or wanting to catch,im very sure its a fuel issue. i had no tools or much time to look at it when i picked her up,i quickly swapped the fuel replay under the hood with another relay and nothing changed so i can rule out a relay issue.before i spend a million dollars on a fuel pump and all the BS involved getting it out,does anyone have any other ideas what it could be? like maybe a bad ground? ECU issue? anything that might be common with these trucks to check first? thanks.