fuel pump

7 Warning Signs Your Truck Needs a New Fuel Pump

A single passenger vehicle (i.e. car, truck, SUV, etc.) is made up of approximately 30,000 different parts. Each of these parts and components has a specific job to do and, in many cases, if one stops working, the vehicle won’t run properly.


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One of these crucial components is the fuel pump. While you may not know exactly what this component does, you can feel confident it’s important and if it isn’t working, your vehicle won’t run.

The good news is, you don’t have to guess if there’s an issue with your fuel pump, as there are some clear signs of a problem, which are highlighted here.

What is a Fuel Pump?

Before diving into the signs of a faulty fuel pump, it’s a good idea to find out what it is and what it does. The fuel pump is the part of your truck that moves the fuel from the tank (where it’s stored) to the engine.

It’s responsible for ensuring the fuel is supplied at a constant pressure to keep your engine running smoothly. There are two types of fuel pumps, including mechanical and electronic.

If you are planning to purchase a vehicle using the help of a truck buyers guide, don’t forget to test drive it. Doing so can let you know if there are any serious issues – including trouble with the fuel pump.

Here, you can learn about indications of a fuel pump that needs repairs or replacement. Remaining aware of a potential issue can help you take action before the issue becomes more serious.

1. A Sputtering Sound Coming from the Engine

If you are driving at a high, consistent speed and notice your engine begins to jerk or gives off a sputtering sound, the culprit may be the fuel pump. In some cases, you may also notice a clicking sound when the engine is engaged.

If you ignore this sound, your engine may not work properly. Additionally, it could lead to permanent damage. The best way to avoid these issues is to seek professional help as soon as an issue is noticed.

2. You Lose Power when Accelerating

Have you noticed your vehicle loses power when you accelerate from a complete stop? If so, this is another sign of fuel pump trouble.

Accelerating requires your engine to have more fuel. If the pump is failing, you may not be able to meet this increased demand. If your car stalls when accelerating, it’s time to have the fuel pump inspected.

3. Increasing Temperature

The temperature of your vehicle can also help to predict a fuel pump issue. Be sure to pay attention to the temperature gauge in your vehicle. If the heat rises and your truck stalls, then it may mean the motor of your fuel pump isn’t working properly.

If your vehicle continues to stall, then the fuel pump is likely deteriorating. It’s time to replace it before the situation gets worse.

4. Your Engine has Begun to Surge

As your truck’s fuel pump starts to wear out, the components are going to wear down at different rates. When the “mismatch” becomes significant enough, the pressure within the fuel lines may be inconsistent.

If this happens, you may find your truck accelerates even if you don’t press the gas pedal. This is called surging and can be quite dangerous. It’s best to have the problem checked out by a pro.

5. Reduced Gas Mileage

Be sure to take notice of how often you have to refuel your truck. Fuel pumps are designed with a relief valve. If this valve doesn’t open, the more fuel than what’s necessary will move into the engine.

If your truck usually gets pretty good gas mileage and then becomes a “gas hog,” the fuel pump could be to blame. At this point, investing in an automotive diagnosis can be beneficial to find out what the precise problem is.

6. Reduced Power When the Vehicle is Under Stress

A truck is put under a tremendous amount of stress when it is hauling heavy cargo or climbing a hill. In these types of situations, the weakened components of the fuel pump are going to begin to cause trouble. As a result, the pump won’t be able to keep up with the demand for fuel. This leads to a complete loss of power.

When this happens, the possibility of being in an accident is increased. This is another reason to seek repairs and service as soon as an issue is noticed.

7. The Engine Doesn’t Start

If you ignore all of the warning signs listed above, you are eventually going to wind up with a car engine that won’t start. When the fuel pump malfunctions completely, the fuel can’t reach the engine when you turn the key.

As this happens, your engine my crank and rev, but it won’t ever catch. To diagnose if this is a fuel pump issue, be sure to check for a blown fuse or lower pressure in the fuel line.

Stay Aware of Fuel Pump Issues

If you want to ensure your vehicle continues to operate safely and efficiently, then knowing the signs of an issue with your fuel pump is essential. Keep the information here in mind any time you have vehicle issues.

If you need more information about common vehicle issues, we are here to help. In addition to providing help with auto repairs, our site also offers automotive buying tips. We are here to ensure you are informed when it comes to your vehicle.