Fuel Pump: Description and Operation

Fig. 1 In-tank Electric Fuel Pump (Models Equipped w/TBI):

FUEL PUMP EXPLODED VIEW

Fig. 2 In-tank electric fuel pump. Models equipped w/Port Fuel Injection:

FUEL PUMP EXPLODED VIEW

The fuel pumps used on gasoline engines are attached to the fuel sending unit located in the gas tank. Fuel pump pressure will vary according to the type of engine/fuel system combination used.