I have a 1996 2500 chevy pickup with a 454. yesterday i went to the mall, it was running just fine, but when i tried to start it back, it wouldnt. the starter turns but the motor wont turn on. i thought maybe i flooded it so i waited a while. still wouldnt start. then i noticed the fuel pump wasnt coming on. so i figured it was either that or the fuel relay. i bought a new relay, wasnt that. so i bought a new fuel pump and put it on. still wont work. usually when i turn the key on it will come on for about 2 secs then shut off. its not coming on at all. ive tested all the connections and fuses. theyre good. does anyone have any idea why my fuel pump isnt coming on? ill probably have to take it to a shop but if its something i can fix i'd rather do it myself. thank you for any help you can give.