All vehicle engine systems require a continuous fuel supply from the fuel tank to keep them running. The fuel pump is a mechanism mechanically or electrically controlled and is responsible for delivering pressurized fuel to the fuel rail on the engine.

The fuel pressure of your Land Rover must meet the requirements for regular engine operation. If the pressure is too low, the engine will run out of fuel, causing the engine to stall, lag, misfire, or lean. If the fuel pressure is too high, the engine will not operate optimally, resulting in fuel wastage or environmental pollution from exhaust fumes.

Causes of Fuel Pump Failure

The fuel pump of your Land Rover could fail due to various reasons, which include the following:

Fuel Contamination

Fuel contamination is a reason for degrading fuel pumps and failure. Fuel is usually compromised from corrosion, debris, and moisture, bringing visible contaminants into the tank. Sometimes the tank itself may be rusty and deposits rust particles in your gas. Irrespective, contaminants in the fuel tank are drawn through the fuel pump.

Erratic fuel supply

A leading cause of fuel pump failure is running the fuel tank on low gas. The pump creates a pressurized upstream of fuel, generating a lot of heat. Therefore, the fuel must flow continuously through the fuel pump to cool and lubricate the internal components. Low flow limits cooling and lubrication of the pump.

Driving frequently with a low fuel tank can also accelerate wear on the fuel pump due to debris on the bottom of the tank being disturbed and entering the pump.

Insufficient Filtration

The fuel filter is required to filter the fuel coming through the tank to ensure clean and contaminant-free fuel into the cylinders which make It is the first line of defense against contaminants. However, the fuel filter can accumulate a significant amount of dirt that will eventually clog up over time. This blockage can restrict the flow of gasoline and even create backpressure, which can damage the fuel pump.

Symptoms of a Fuel Pump Failure

The following includes the most common symptoms that a failing or failed fuel pump could give:

Starting Problems

While several issues can cause the failure of your car to start, a faulty fuel pump could be the reason. If the fuel pump of your automobile can’t supply the required gasoline from the fuel tank to the engine, the vehicle might have a difficult start.

Engine Sputtering

When the fuel pump cannot deliver a constant fuel stream, it may cause the fuel-to-air ratios to be off, resulting in uncontrolled combustion and constant sputtering in the engine.

Fuel Tank Noise

Normally, when you start your car, the fuel pump makes no or low humming sound indicative of a properly working pump. The sound is produced when the key is placed in the run position, turning the voltage to prime the fuel pump. It is a quiet, electronic sound that mostly goes unnoticed.

However, a bad or worn fuel pump may produce a noticeably loud whine or howl when it is running. It can be a whining noise that indicates the fuel pump is struggling to spin and send fuel over.

Sluggish Acceleration

Accelerating requires more fuel, forcing your fuel pump to work harder. If the fuel pump does not correctly regulate the amount of fuel, your car might have a delayed or inconsistent acceleration response.

Loss Of Power Under Stress

In conditions of stress or conditions requiring more power from the vehicle, such as uphill driving, immediate acceleration, or traveling with heavy loads, the amount of fuel needed for combustion increases. But a failing fuel pump can’t deliver enough gas or keep the fuel pressurized enough to keep up with the high demand for gas that the vehicle needs under stressful situations.

Rowlett’s European, Domestic, & Import Auto Experts

Replacing a faulty fuel pump is not a simple task. It involves various processes that require skill and attention from an experienced technician to prevent causing damage to other vehicle parts.

At Rowlett Motorwerks, we have experienced technicians familiar with Land Rover fuel pump problems and how to solve them. Our technicians employ the latest technology and their years of knowledge of experience to ensure that your vehicle gets the quality service it deserves.

We are located in Rowlett, TX, and our team is also the go-to technicians for drivers in Garland, Rockwall, Sachse, and Wylie. Please call or visit our shop today to book an appointment.