Fuel Pump: Description and Operation

Fuel Pump/Gauge Assembly:

The fuel pump, located in the fuel tank, is a high pressure (64 - 85 psi/441 - 589 kPa) positive displacement electric pump. It is designed to supply more than the maximum required amount of fuel at slightly higher than required pressure. This is to insure adequate fuel supply and pressure, while fuel circulates constantly through the system and back to the tank.

The pump is installed as part of the fuel gauge unit in the tank and has a filter screen attached to its inlet to help remove some of the larger particle contaminants.