There are a couple reasons. First what kind of car is it? It could be a relay. It also could be an inertia switch located some where. If it tripped you won't get power to the fuel pump.
Blown fuel pump fuse or defective fuel pump relay.
Check all fuses and fuel pump relay. Check the fuel pump inertia cutoff switch in the trunk.
No , it would crank , but if there was no power getting to the electric fuel pump it would not start
fuel pump relay, fuse or wires
that can be because of the fuel pump relay,a severed wire to the fuel pump or the fuel pump fuse is blown.
If you're getting power to the pump this proves the fuel pump fuse and fuel pump relay are good. That leaves only two possibilities. Either the pump is running but it's not pumping fuel. Or possibly the fuel filter is clogged.
If the pump is getting power but not pumping, it's probably a faulty pump. It's also possible that the pump pickup screen is blocked.
In order of probablility: fuel filter, fuel pump fuse, fuel pump, fuel pump relay, control system.
Check to make sure that the pump is getting power to the Neon fuel pump. Check the pump relay, and the pump fuses.
Blocked fuel line or SOCK (pickup) inside fuel tank-fuse 2 fuel pump OR anti-rollover switch that has been bumped or in a wreck.OR the hose that connectes the fuel pump 2 the pick-up tube inside the tak.or a bad fuel pump. 1st check to see it the fuel pump is getting power. If not check if power is getting to the fuel pump relay.
No. When a fuse blows it stops power from getting to the attached devices. It would power off and stay off. IF the fuel pump was attached to a self-resetting circuit breaker, then the power might cycle on and off.
Check your fuel pump relay and fuse