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Fuel Pump Strainer Replacement - Houston's Premier Auto Repair Facility

Fuel System Home Page > Parts of the Fuel/Engine Management System > Fuel Strainer

Function: Prevents larger contaminants inside the fuel tank from entering the fuel line.

Signs of Wear: Poor acceleration, low power.

The fuel system is responsible for supplying fuel to the engine so that it can be burned along with the incoming air charge. The fuel pump is located inside the fuel tank, with a fuel strainer normally connected to the inlet of the fuel pump, to filter out any debris found in the tank. Fuel is pressurized by the fuel pump and sent through the fuel filter, which removes fine particles found in the fuel so as not to damage the fuel injectors. The fuel injectors attached to the fuel rail, which usually also includes a pressure regulator. The fuel injector sprays a measured amount or pressurized fuel into the intake manifold. A valve in the pressure regulator allows excess fuel to return to the fuel tank via the return line.

A slight variation on this system is to place the fuel pressure regulator in the tank as part of the pump assembly, making the fuel return line unnecessary.

Have your vehicle fuel and engine management system checked by an ASE Certified Technician in Fuel System Services. Schedule service today to visit our repair facility on the southwest side of Houston.