Discover Best Subaru Impreza in tank fuel pump. Shop Subaru Impreza Fuel injection pump replacement & Subaru Impreza Electric fuel pump. For your Subaru Impreza, maintaining the electric fuel pump is crucial for performance and longevity. Regularly check for signs of wear, such as sputtering at high speeds, loss of power under stress, or a whining noise from the fuel tank, which could signal the need for replacement. Opt for high-quality materials when selecting a new pump, and consider options like turbine pumps for efficiency or gerotor pumps for reliability. Proper installation is key, so follow manufacturer guidelines to ensure optimal function. Extend your fuel pump's life by keeping the gas tank at least a quarter full to prevent overheating and avoid contaminants by replacing the fuel filter as recommended.