What to Do When the Fuel Pump Fails to Deliver Fuel and the Engine Won't Start?
2 Answers
Apply 12V power to the relay coil to check if the control circuit closes. If it does not close, replace the relay with a new one and recheck. During startup, observe whether the tachometer on the dashboard moves. If it does not move, the sensor is damaged and needs to be replaced with a new one. Try replacing the fuel pump with another one.
Hey, last time my car wouldn't start, probably a fuel pump issue too, really annoying. I checked a few things, like whether the tank was out of gas—that's simple, just look at the fuel gauge. If there's enough fuel, it might be a blown fuse, pop the hood and check the fuse box. When the fuel pump isn't delivering fuel, can you hear the pump starting sound near the rear seats? No sound could mean the pump is broken or there's an electrical issue. At this point, try gently tapping the bottom of the fuel tank—sometimes an old pump gets stuck and can be temporarily activated. If that doesn't work, it's best not to force-start the engine to avoid damage; calling a tow truck to take it to the repair shop is the safer option. For regular maintenance, it's recommended to change the fuel filter periodically to prevent pump blockage. Older cars have more issues, so paying attention can save you a lot of hassle.
