As most all of us have discovered when the tank ran dry, an engine requires fuel to run. As this fuel is flammable and generally explosive, it is kept in a tank away from the combustive action going on inside the engine. This setup presents the problem of how to get the fuel from the tank to the carburetor or fuel injectors that feed the engine fuel. Enter the fuel pump. The fuel pump draws fuel from the fuel tank and delivers enough to the engine to keep things moving.
When cars used carburetors, the fuel pump was usually a mechanical deal bolted up to the side of the engine. Carburetors are now about as common as console black and white console televisions with built in hi-fi phonograph and stereophonic sound. Fuel injection is the fuel delivery standard. A modern fuel pump is capable of maintaining the pressure and flow required by the electronic fuel injection system, itself powered by electricity created by the alternator. If the fuel pump quits? Game over.
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