In 1983, Ford started installing a useful safety feature in their Fuel Injected passenger vehicles. The Fuel Shut off inertia switch shuts off power to the fuel pump in the event of a rear-end collision or other major accident. It's purpose is to keep the pump from running, so in case of fire, fuel does not continue to flow from the tank. The switch can easily be re-set to restore proper function of the pump.
Ford Motor Company Genuine Parts, Motorcraft® Parts and Ford and Motorcraft Remanufactured Parts are all excellent choices when it comes to performance, longevity and value for your Mustang or SVT Lightning. And they’re all backed by a Ford Motor Company limited parts warranty*, so you know their parts you use are going to perform like they should. Put the same parts on your Lighting & Mustang that came from the factory!