diesel fuel pump

How To Troubleshoot Common Issues With Diesel Fuel Pumps

When your vehicle has an issue with fuel delivery, the rest of it will undoubtedly be compromised. Maintaining the integrity of your vehicle’s diesel fuel pump is essential to maintaining the integrity of your entire vehicle. With as many as 50 different types of diesel engines on the market, knowing the ins and outs of diesel fuel pumps is important. Know these common issues and never experience detrimental vehicle failure.


Dirty Fuel


The best diesel fuel pump injector is a clean diesel fuel pump injector. As residue builds up in the diesel fuel supply system, a surprising amount of grease, grime, and gunk clog up the entire pump. The area where the fuel leaves the injector and enters the combustion chamber, known as the spray tip, is especially prone to seeing the backed-up residue. This clogged tip is often the issue when an engine sputters or hesitates during acceleration. Be sure to use high-quality diesel fuel to prevent this build up as much as you possibly can.


Improper Injection Timing


Defective parts of the fuel injector pump can negatively affect the timing of the fuel transfer process. This typically happens when the injector pump’s O-rings or ball seats are defective themselves. While this is a fairly common glitch in diesel fuel pumps, it typically requires an entire rebuild or replacement to fix the defective parts.


Low Fuel Tank Level


Diesel fuel pumps need a good amount of fuel inside of them to run smoothly. The fuel serves as a lubricant for the fuel pump bearings. When you run your vehicle with a fuel tank that is as close to empty as possible, you’re not providing your pump with much lubrication and it will eventually destroy the pump. When a lack of fuel wears out the fuel pump bearings, the injectors do not receive the fuel at the pressurized level they should be.


Debris Inside Injector


Small visitors to the inside of injectors, like pieces of dust and debris, can clog the entire injector. A tiny object could also leave the injector open at all times. Injectors need to close for optimal operation, and when they can’t the cylinder performance is compromised.


Keep an eye out for issues like this with your fuel lift pumps. When you catch issues early, you can work toward a solution more quickly.

fuel pump manufacturers

3 Factors To Consider When Choosing A Fuel Pump

If you have the vehicular knowledge necessary to pick and choose between individual parts, you’ll know the importance of the fuel lift pump. Often located within the fuel tank, different diesel fuel pumps provide different outcomes in terms of efficiency and power. There are a number of fuel pump manufacturers out there, so the journey to the perfect one may end up being more difficult than you expected. If you’re trying to find the right diesel fuel lift pump for your vehicle, consider the following three factors.


  • Horsepower: Your engine’s horsepower (hp) determines how much fuel flow is required to support it. As horsepower increases, so too does the volume of fuel needed to support that power. Focusing on the 10hp per gallon (or 2.64hp per liter) can help you estimate the volume to power ratio in your vehicle. However, you can only actually know your gallon per horsepower ratio if you take into account the fuel pressure required for your engine.


  • Fuel Pressure: Different engines require different fuel pressures. Fuel pressure has a large effect on how much flow a pump can produce, so it’s vital that you know what your engine’s maximum pressure is. Fuel pumps flow at their highest volume when there is no pressure (known as free flow), but as the pressure increases, the flow decreases. Every pump has a different flow volume at a given pressure, so taking a look at a flow chart of the pump you decide to buy can make the process a lot easier.


  • Voltage: Fuel pumps have different flow rates at different voltages. When the voltage increases, the speed of the pump will also increase, which then increases its flow at any given pressure. Most cars produce around 13.5 volts when running. However, if yours does not produce 13.5 volts, you can examine the flow ratings of a pump at 12 volts instead to be safe.


A single tank of gas can power a diesel engine between 400 and 800 miles; to get the most out of your tank, you must have a fuel pump that is optimized for your vehicle. If you’re able to take into account the three factors described above, you should have no problem sorting through all the fuel pump manufacturers and getting the most bang for your gasoline-buck.