Fuel Pump Sump Step 2 - A connector is located near the top of the fuel tank, which is used to supply power and ground for the fuel pump and sensing wires of the fuel level sender.
Fuel Pump Wires Step 3 - A corrugated fuel tube is used to connect the pump to the top of the tank through the cap plate.
Fuel Pump In Tank Step 5 - The pump body is where an electric motor is mounted to a small vein pump which picks up gas and then pressurizes the fuel system.
Fuel Pump Body Step 6 - The fuel level sender is attached to the fuel pump housing. This float rides on the fuel level while the sensing resistor provides feedback data for the computer.
Fuel Level Float Step 7 - A pre-filter is used to keep large debris from the pump inlet which would hinder pump performance.
Fuel Pump Pre Filter Step 8 - Once the fuel has been pressurized, the fuel filter cleanses it before traveling into the fuel injection system.
Fuel Filter Step 9 - A fuel pressure regulator is used the control pressure maintained in the system.
Fuel Pressure Regulator Helpful Information A fuel injection system is more efficient than its predecessor, the carburetor, and can better operate in extreme conditions. Electric fuel pumps can experience wear and tear on the armature, brushes or bearings, which causes a gradual loss of pressure. An inlet filter sock is designed to block tank sediments. Running the fuel pump out of gas can cause premature failure. Best Practices
- Inspect the fuel tank for sediment when replacing the pump.
- To extend pump life replace the fuel filter at regular intervals.
- Service the throttle body and idle control valve when replacing the fuel filter.