Often you may find that your engine fails to act and it struggles to make a start. Most often, your fuel pump is the main culprit. This fuel pump is mainly responsible in disrupting the engine performance and you may get upset. In this post, we will discuss about a few symptoms that will forewarn you that you are about to face a problem.
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What is a Fuel Pump?
Your fuel pump is responsible for supplying fuel from the fuel tank to the carburettor, which is also known as the fuel injector in the IC engine. It supplies fuel for both gas and diesel engines. Usually, a low-pressure mechanical pump is used for carburetted engines; however, in fuel-injected engines, either an electric or high-pressure mechanical pump is used.
There are a few engines where no pumps are needed and the fuel is supplied with gravity and fuel tank is placed just over the carburettor. Based on the requirement of the engine such pumps are designed.
A Few Symptoms of a Bad Fuel Pump
Your car’s fuel pump delivers gas to the engine for smooth operation. If it overheats, gets damaged, or fails, the engine may struggle or stop. Watch for these warning signs.
1. Fuel Tank Noise.
A whining noise from the fuel tank often signals a failing fuel pump. It could also mean you are low on gas or have contaminants in the tank. If you hear whining, inspect the fuel system to avoid potential engine issues.
2. The Engine Sputters or Surges.
If your engine suddenly starts sputtering while you are driving, your fuel pump must be defective. This is because of an inconsistent fuel supply. You might also experience car surging due to an improper fuel flow from a failing pump.
3. Trouble Starting the Car.
If your car fails to start, there can be several reasons for that; however, your fuel pump is most often responsible. In most cases, the reason is that fuel pump stopped delivering fuel. If you keep trying, then your car battery may drain out, and your starting mechanism may get affected and may need costly repairs.
4. Loss of Power Under Load.
If your vehicle struggles while towing or carrying a heavy load, your fuel pump surely has a problem. A weak pump cannot supply enough fuel.
5. Reduced Gas Mileage.
If you notice that you need to refuel more often, the relief valve of your fuel pump must be faulty. That is because the valve cannot regulate the flow of fuel, resulting in more fuel being wasted.
6. Stalling at High Temperatures.
Engine stalling can signal a failing fuel pump, especially if the temperature gauge rises. When the pump can’t supply enough fuel, the engine works harder, generating excess heat. If it overheats, the engine may stall as a protective measure.
7. Dead Engine.
Your car may not start due to issues with the battery, alternator, starter, fuel filter, or fuel pump. Maintain your fuel pump by keeping sufficient gas, using quality fuel, and scheduling regular inspections.