Fuel Pumps

Fuel Pumps: Reliable Pressure for Consistent Engine Operation

The INFINITI of Massapequa parts team knows what it takes to keep your vehicle running great. Your fuel pump creates the pressure necessary to move gasoline from your tank through the fuel lines to your engine's injectors for combustion. This electric pump typically mounts inside your fuel tank and operates continuously whenever your engine runs or the ignition is on. Without adequate fuel pressure, your engine would starve for gasoline and lose power or stall completely during normal operation.

Electric Fuel Pump Operation and Design

Your fuel pump uses an electric motor to spin an impeller that draws gasoline through an inlet screen and forces it toward the engine under consistent pressure. Most systems maintain pressure between 40 and 60 PSI, depending on your engine's specific requirements and current operating conditions. The pump assembly includes a pressure regulator that maintains consistent fuel pressure and returns excess gasoline back to the tank through a return line. An integrated fuel level sending unit also signals your gas gauge about remaining fuel quantity for driver awareness.

Common Pump Problems and Warning Signs

Fuel pumps typically fail due to worn motor brushes, clogged inlet screens, or overheating from frequently running on low fuel levels that reduce cooling. Most pumps last 100,000 to 150,000 miles, but contaminated fuel or electrical issues can cause premature failure and expensive repairs. Symptoms include difficulty starting your engine, hesitation during acceleration, or complete power loss while driving on highways or city streets. The fuel filter protects your pump from contamination and requires regular replacement to prevent expensive pump damage from debris in your fuel system.

Genuine INFINITI Fuel Pumps Excel Over Aftermarket Options

Genuine INFINITI fuel pumps are engineered to exact pressure specifications and flow rates required for your engine's performance characteristics and fuel delivery needs. Generic aftermarket pumps often use inferior motors, inadequate filtration systems, or incorrect pressure settings that damage other fuel system components over time. Vehicles like the Q40 and QX70 require precise fuel delivery that only genuine pumps provide consistently throughout their entire service life. From routine maintenance to major overhauls, INFINITI of Massapequa has got you covered.