Electrical Short. Pinch wire. Grounded Wire. exc.
Fuses.
theres a fuel pump relay located undr the hood left hand side near the fire wall if your fuses are good this will be your problem it your fule pump relay drive safe
no gas
Is there spark? Is there fuel pressure? Is there fuel injector pulse? Are fuses good? Is there compression? Is timing correct?
first check your fuses and fuel relays make your power to the pump. check the fuel reset swich. i good manual would be a good start..
Methane gas is highly flammable which makes it a good fuel source for gas burning.
check all fuses. there are 2 fuses that can prevent engine from firing if they are blown
check your fuses if all good check to see if there is power going to the fuel pump if so then replace the pump
Don't know for sure for a 2007, but for a 2002 expedition it is the top left fuse (25 amp) in the fuse compartment to the left and under the steering wheel.
If all the fuses are good, then that is not your problem. If the pump has shut down, then check the relay in the trunk. drivers side, might need to be reset.
most likely the turn signal flasher, located under the steering column to the right.
i have also replaced the throttle body with the fuel injectors the i have tested the fuel rely and it does work