The Buick Century is a mid-size car manufactured by the Buick division of General Motors. The 1993 model belongs to the fifth generation of the Century, produced from 1982 to 1996. The engine in a 1993 Buick Century may be a four-cylinder 2.2L engine or a six-cylinder 3.3L engine. Both of these engines use fuel injection, requiring a high-pressure fuel pump. The fuel pump in the 1993 Buick Century attaches to the fuel tank, which you must remove in order to replace the fuel pump.
Tools Used: Tools, Socket wrench set, Jack stands
Replace a Fuel Pump
Loosen the filler cap of the fuel tank and raise the the vehicle on jack stands. Disconnect the electrical connector from the fuel pump and lower the vehicle. Start the engine and allow it to run until the engine stalls. Crank the engine for three seconds to consume any remaining fuel in the fuel lines.
Disconnect the cable for the negative battery terminal with a socket wrench. Raise the vehicle on jack stands and drain the fuel tank. Detach the electrical wiring from the fuel tank, including the ground wire under the body of the vehicle. Disconnect the fuel lines from the fuel tank.