2005 Nissan Altima - Fuel Pump

The fuel pump removes fuel from the tank and pressurizes it for use in the fuel delivery system. On older vehicles, a mechanical fuel pump driven by the camshaft was used. On most modern vehicles, an electronic pump located in the tank pumps the fuel directly from the tank through the rest of the system. It is activated as soon as you turn the key to create fuel pressure for startup. If you try to start your car and it won't fire, listen near your fuel tank when you turn the key on. If your fuel pump is no longer turning on or is failing, you may hear a whining noise or no noise at all from the fuel tank. If it is still working intermittently, you may also notice misfires or a rough running engine that may stall. If you need a fuel pump, fuel filter, or other parts of a fuel repair, visit O'Reilly Auto Parts.