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7 Signs of Fuel System Failure

Your vehicle’s fuel system pumps fuel from the gas tank and into the engine. Needless to say, it can be problematic if the fuel system isn’t working properly. You will lose fuel efficiency (MPG). If something is really wrong, then the car might not run at all. Damage to fuel system components may also lead to a fuel leak, which can be dangerous in a number of ways.

In most cases, major fuel system issues will come down to the fuel pump. It’s what keeps the gas flowing through the lines. Other problems that can be developed are clogged fuel filters or fuel lines. Or, a leak can happen with a loose connection or damaged parts.

Here are are 7 common signs that your car has a fuel system failure, according to LightHouse Automotive:

1. The Engine is Sputtering

This often happens the faster you drive. You will hear and feel and engine as it sputters and struggles to produce power smoothly. This means there is not a constant stream of fuel being pumped into the engine.

2. Difficulty Starting the Car

This could be any number of mechanical problems such as a failing ignition system, alternator, dead battery or spark plug. It may also be a fuel system issue. If your car won’t start, it’s best to have a professional mechanic diagnose the cause.

3. Fuel Tank Whining Noise

Any unusual sound in your vehicle is cause for concern. A failing fuel pump is often heard with a loud whining sound that comes from the fuel tank. It usually means the vehicle is low on fuel, has contaminated fuel in the system or the fuel pump isn’t working correctly.

4. Lack of Power

A fuel system issue might also show itself when you are driving the car under stressful conditions (high temperatures, high altitude, steep uphill climbs, or carrying an uphill load). The engine may sputter or stall out completely. It may just lose a lot of power when you need it most, and that’s often an indicator of a fuel system problem.

5. Loss of Gas Mileage

If you keep diligent track of your gas mileage and notice you aren’t getting the MPG you are used to, a problem within the fuel system is one of several issues that could be causing a loss in fuel efficiency.

6. The Car is Surging

Sometimes, a fuel system problem will cause the car to surge while it is driving. It won’t maintain consistent speed and you’ll feel it struggling as you press the gas pedal.

7. Fuel is Leaking

A sure sign of a fuel system failure is if you notice that any gasoline or diesel fuel is leaking from under your vehicle. If you see a fuel leak, don't drive the car and get it to an auto shop as soon as possible!

If you notice any of these potential fuel system failures in your vehicle, LightHouse Automotive in Colorado Springs is here to help. Our technicians can properly diagnose the problem and recommend the necessary repairs. You may just be due for a standard fuel system service to clean the lines and replace the fuel filter. Or, there may be a bigger issue at hand, such as a malfunctioning fuel pump.

Call LightHouse Automotive today at (719) 465-0302 for all your Colorado Springs fuel system repair and maintenance needs, or you can schedule your service appointment online for a fuel system inspection.


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