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Does fuel pump run ? Remove fuel cap. Have someone crank it for you,you should hear fuel pump running. If not bang on bottom of tank while cranking. If it starts fuel pump will need replacing , if not check for power to pump, if it has power,replace pump. If no power, check relay for operation
If you're referring to a fuel injected gasoline vehicle, self prime takes place at key start. If you still feel the need to have the computer repeat this process (or re- self prime), turn the key all the way until the dash lights come on, then turn off. Repeat this 5 times then attempt to start. If all the windows are closed and the radio is off, when you turn key on with engine off, you'll hear the fuel pump at the rear of vehicle buzz or hum as it's priming the system.
Turn the key and listen for a hum (keep doors closed but a window down and radio off). Don't turn the key all the way to try to crank it, just the turn to get all the lights in the dash on. If you hear a slight hum or buzz that last a second or two that is your fuel pump. If you don't hear it, check your fuse for the fuel pump, if that is not blown, your fuel pump may have gone out.
Do you have sufficient power to the vehicle? Do the lights work and radio? If not your battery is low, if yes than your starter solenoid may have failed. Since there is absolutely nothing, I take it you hear no cranking or igniting. correct?
U have lost the battery, check the cables, if they are clean (no corrsion) replace the battery, modern sealed batteries fail like this, crank fine and then puff nothing, happened to at least 5 times over the years and saw it all the time at work.