In these circumstances, the car will feel like it is unable to go or maintain the intended amount of power. The engine shuts down because weakening parts of the fuel pump cannot keep up with the car’s heightened fuel demands in these situations. Loss of Power Under StressĪnother indication of a bad fuel pump is a loss of power when the vehicle is under stress - such as driving uphill or carrying a heavy load - or while accelerating. If stalling continues to occur with an increasing temperature gauge, it could indicate the fuel pump’s deterioration and need for replacement. A rising temperature paired with stalling often indicates a problem with the fuel pump motor. Stalling can happen because of multiple problems within a vehicle but pay attention when it happens frequently at high temperatures shown on the car’s thermometer. In this case, the fuel pump cannot provide a constant stream of fuel to the engine at the ideal pressure. Should you be driving at a consistently high speed and the engine suddenly sputter before returning to normal operation, it may indicate issues within the fuel pump. One of the surest indicators of a faulty fuel pump is a sputtering engine - typically at high speeds. A weakened fuel pump can cause the vehicle to take more cranks to start than normal, and in more serious cases may even cause the vehicle to require multiple turns of the key before it will start. A weak fuel pump may still pump fuel, but the vehicle may experience difficulty starting from the lack of pressure. Because fuel pumps constantly run whenever the ignition is turned on, they can eventually wear out and weaken over time. Difficulty StartingĪnother symptom commonly associated with a problematic fuel pump is difficulty starting. There may not be enough fuel, a damaged pump, or contaminated fuel inside the system. Most fuel pumps will produce a quiet hum during their normal operation, however, an excessively loud whine coming from the fuel tank is usually a sign of a problem. An old or worn fuel pump may produce a noticeably loud whine or howl while running.
One of the first symptoms of a problem with the fuel pump is a loud whining sound.
2007 FORD TAURUS BAD FUEL PUMP MODULE DRIVER
Usually, a bad or failing fuel pump will produce one or more of the following 8 symptoms that alert the driver of a potential issue. Because the fuel pump is the component responsible for supplying the engine with the fuel required for it to run, any issues with it can cause major drivability and performance problems. However, some vehicles are equipped with inline or mechanical-style fuel pumps. The fuel pumps on most modern vehicles are electric and mounted in the fuel tank. When the key is turned on, the fuel pump is activated and pressurized, which can be heard as a quiet whine or hum in some cars. The fuel pump is responsible for delivering fuel from the gas tank to the engine at the appropriate pressure required for performance demands. Virtually all modern vehicles with internal combustion engines come equipped with fuel pumps.