When a fuel pump works without fuel, this usually is an indication of an malfunction or problem with the fuel delivery system. A major cause for such a situation includes a clogged fuel filter that blocks off the passage of fuel. Indeed, studies have shown that as many as 40% of all fuel-related problems are filter-related, where the pumps are forced to overwork while being starved of fuel. In addition to putting extra pressure on the pump, this can bring about overheating of the said pump, which can be another major cause of pump failure.
This may be caused by air in the fuel lines due to leaks and/or bad connections. A report by the Society of Automotive Engineers estimated that air in the fuel system can drop system efficiency as much as 30%, over-stress the pump, and contribute to an overall decline in performance of the vehicle. An automobile with air in the lines may also exhibit rough idling or stalling under load.
Sometimes, the fuel pump itself may have developed a fault. Failure of the pump can result in a situation where the pump turns on but sucks nothing-a condition whereby it fails to draw fuel properly. The Journal of Automotive Engineering cites internal wear and tear as the cause of almost 25% of the failures occurring in fuel pumps. According to Mike Johnson, an automotive expert, "A faulty fuel pump can pose serious problems with the performance of an engine, including stalling and poor acceleration." Such performance problems underline the need for regular servicing and timely diagnosis of problems regarding the fuel system.
If you find your fuel pump running without fuel, you first need to check the fuel level in the tank. It might be the silly season, but you will be astonished at how many people do not check to see that the tank is not empty. Providing the tank is full and the pump continues to run dry, inspection of the fuel lines for leaks or blockages becomes paramount. A basic visual check can often show cracked lines or loose fittings that allow air to enter the system.
Other signs may also come from testing the voltage of the pump. Voltage irregularities hint at deeper electrical problems that could easily prevent the pump from working as intended. Normally, a good fuel pump works within the range of 12 to 14 volts of voltage. If the reading is higher or lower than this, then there could be an issue with the wiring or the pump itself.
In other words, what happens is that the fuel pump runs out of fuel due to poor filtering, air may leak in, or if the pump itself has a problem. These can be prevented through routine checks of your vehicle to ensure it serves you efficiently and effectively. Keep your fuel pump in good condition for reliable delivery of fuel and optimal performance. You can look at your options in top-grade fuel pumps at Fuel Pump, where solutions will be made available that can exactly fit your car's needs. A properly running fuel system gives extra longevity to your engine and makes driving more enjoyable.