Checking the fuel pump ensures your engine receives consistent fuel pressure for smooth operation. Symptoms of a failing pump include engine sputtering at high speeds, difficulty starting, or loss of power under load. To inspect, listen for a humming sound when turning the ignition to the 'on' position. A fuel pressure gauge can measure output against manufacturer specifications. Low pressure may indicate a worn pump, clogged filter, or electrical issue. Regularly replacing the fuel filter helps protect the pump from debris. If the pump fails, it must be replaced—often requiring removal from the fuel tank. Proactive inspection during routine service prevents unexpected breakdowns and keeps your vehicle running reliably on the road.