Fuel Pump Failure Causes

Fuel Pump

A Vehicle is comprised of many components that work together to function smoothly. Multiple systems are integrated into one automobile to achieve the objective of vehicle manufacturing.   

Any malfunction of one component affects the working of many other car parts; hence the vehicle’s overall performance is deregulated. Therefore, it is suggested to sell the vehicles with damaged components for instant cash for cars sydney and drive a safer and more reliable automobile.  

The fuel pump is one of the vital parts of your vehicle, and it is responsible for delivering fuel from the gas tank to the engine. This process creates a spark and generates horsepower for any driving.   

If the fuel pump starts to function low, it can lead to ineffective engine performance. In this article, we will discuss the basic reasons for fuel pump failure and the common indicators that can help you identify the problem.   

Causes Of Fuel Pump Failure

Here are some of the most common causes of fuel pump failure:  

  • Contaminated Fuel   

The fuel saturated with rust and other particles can cause the fuel pump to fail. These particles can clog the fuel filter and damage the sensors on the pump. The vehicle sitting idle for an extended period can also cause fuel contamination. Therefore, it is recommended that customers buy quality fuel from trusted stations.   

  • Fuel Starvation   

People must know that driving vehicles with little fuel can threaten the fuel pump. The component needs oil for lubrication; therefore, with less fuel, the fuel pump gets dry out and overheats. To save your fuel pump from failing, it must be refilled with the required level of lubrication.   

Insufficient flow limits the cooling and lubrication of the pump, leading to permanent damage to the fuel pump.  

  • Clogged Fuel Filters   

The role of the fuel filter is to prevent contamination from entering the engine through the fuel pump.. If the filter gets clogged with dust, rust and debris, the pump must work overtime to push the fuel to the engine.   

Therefore, the bad quality of fuel usage must be avoided to keep the fuel pump safe from getting clogged. With the choked fuel filters, the fuel pump’s performance can become adverse, impacting the engine’s overall efficiency.   

  • Electrical Wear  

The low-quality fuel not only damages the sensors, but it can also wear out the brushes and communicator on the pump. This will require extra amperage, which can burn the connectors, leading to pump failure.   

It is to ensure that one must check the connectors when replacing the pump because a damaged connector harms the fuel pump.   

Symptoms Of Failing Fuel Pump

Some of the common symptoms of a failing fuel pump are discussed below. If any of them starts appearing, you must take your vehicle to the expert auto mechanic for instant inspection and replacement service.   

  • Poor Engine Performance   

A person having years of driving experience can easily indicate unusual sounds from the damaged engine. If the engine doesn’t receive adequate gasoline from the fuel pump, it will be challenging to produce power as intended.   

The engine had a failed fuel pump that exhibited unusual sounds, leading to poor performance. This produces an unpleasant sound, and the internal engine starts to get damaged due to insufficient fuel availability.   

  • Overheating of Engine  

Overheating is the common symbol of a malfunctioning fuel pump. A bad fuel pump gets overheated frequently and delivers gas to the engine, causing it to run hot and turn off while on the road.   

The vehicle might start after getting cooled off, but this problem must not be avoided as it can cause issues in the long run. If you face the problem of an overheating engine, a mechanic must be consulted to resolve the matter immediately.   

  • Decreased Fuel Efficiency  

There are many reasons for decreased fuel efficiency, and fuel pump problems can be one of the reasons for lower mileage. This means that the pump sends too much gasoline to the engine, using up all that’s available in the tank.   

The reasons for high fuel consumption must be evaluated, and if the fuel pump of the reason why the vehicle is consuming more fuel, it must be replaced.   

  • Car Jerking or Sputtering at High Speed  

You may have a failing fuel pump if you notice your engine jerk or sputter. This is because the fuel pump cannot deliver the smooth flow of fuel to the engine; hence, the engine only receives air. In such cases, it forces the engine to jerk.   

  • Losing Power While Driving Uphill   

If your vehicle starts to lose power when you climb a hill or tow a load, the failing fuel pump can be the reason. Activities like driving cars upward place extra strain on the engine and demand more fuel to deliver the same performance. When the fuel pump is not working efficiently, it cannot keep up with the increased fuel demand.   


The fuel pump is one of the components required for a safer and more reliable drive, so its prime condition is important for vehicles. If your car is struggling with weak or inconsistent power, it must be replaced with a better version of the fuel pump to keep the performance optimal.  


Daniel booked an appointment. 1 hour ago   verified Verified by Cash For Cars Sydney

Car For Cars Sydney