How Long Does It Take To Replace A Fuel Pump? Process Explained

How Long Does It Take To Replace A Fuel Pump?

Fuel is the primary food source for your vehicle to move, and it produces energy for cars to drive efficiently. The fuel pump is connected to the fuel tank, and the engine works as a moderator drawing the fuel from the fuel tank filtering the impurities and sending it to the engine. Over time your fuel pump tends to wear off, and you will have to replace the fuel pump. It is essential to know how long does it take to replace a fuel pump if you are planning to return one.

The engine powers the fuel pump in your vehicle to supply gasoline to the engine. As the fuel pump is a critical part of your vehicle, if it is not in good condition, it fails to provide the energy supplement for your car to start.

There are two types of fuel pumps seen in vehicles. One of these is the electrical fuel pump commonly seen in new cars and the mechanical pump that is frequently seen in older vehicles.

Most of the time, failures in the fuel are caused due to old age, electrical faults, dirt and debris collected in the fuel pump, and harmful gas. Improper maintenance in your fuel pump is also a cause for failures in the fuel pump.

The lifespan Of A Fuel Pump

The lifetime of your fuel pump depends on the maintenance. The fuel pump in a vehicle lasts up to 100,000 miles and can last far as 200,000 miles. As said, your care impacts the durability of the fuel pump.

You can extend the lifespan of your fuel pump by maintaining the fuel tank at least a quarter of the whole tank. This can prevent your fuel pump from drying and cracking since the fuel acts as a coolant to the fuel pump drying can cause overheating and tending to wear out.

Signs That You Need To Change The Fuel Pump

It is vital to understand when your fuel pump needs a change in the vehicle. A failed fuel pump has explicit warning signs to indicate lousy fuel, and it is best for you to recognize the signs,

  1. Your fuel may not produce enough power to start your vehicle, and you may experience a hard time in s starting your car. Worser situations can lead to your car not starting at all.
  2. The pressure regulator in your vehicle fails, not creating enough pressure; as a result, you will experience sputters and surges in your engine while driving.
  3. You will hear unusual noises from the area around the fuel tank
  4. Your engine starts to overheat.
  5. Low efficiency when accelerating
  6. Fuel economy is wasted than usual for the reason of  low fuel pressure
  7. Gas finishes rapidly due to the decrease in the gas mileage.
  8. Your vehicle will face issues while driving up a hill, as your engine has to work harder, which requires more fuel. But since the engine is under power because of the weak fuel pump, it does not generate enough energy to climb up the hill even if pressing the gas paddle harder.

Engine Sputters When Accelerating? Here Are The Probable Reasons. 

How to Replace A Fuel Pump?

It is a good idea to replace a fuel pump, and it can be replaced if you have the necessary tools. But replacing your fuel pump can be time-consuming if it is your first time replacing it.

Before replacing the fuel pump, remember that you will be working with highly flammable gasoline; wearing safety gloves, a mask, and safety goggles is a must to replace the fuel pump.

Ensure the engine and fuel pump are cool before touching them to avoid burns.

To start replacing the fuel pump, first, you have to

  1. Unplug the negative battery cable
  2. Take off the fuel filler cap and loosen the lid in the gas tank
  3. Disconnect the electrical connector if an electric fuel pump, and if not, remove the mechanical fuel pump using screwdrivers.
  4. After moving out the fuel pump, replace the new one. Connect the electrical connector and tighten the screws.
  5. Reinstate the fuel filler cap and tighten the gas tank lid
  6. Plug the negative battery cable back.
  7. Start the engine and check for any leaks.

How Long Does It Take To Replace A Fuel Pump?

Replacing your fuel pump depends on the setting of your fuel pump. A car with an external pump may take an hour, but if you are to replace the entire fuel pump, it can be time-consuming.

Many factors affect the time of replacement of your fuel pump. As mentioned earlier, the setting of your fuel is one of them, the model of the vehicle and the model of the fuel pump are two other factors.

It can drive your time up to 4 – 5 hours, and sometimes you might be able to replace your fuel pump sooner if you have necessary replacement parts. Because there are chances it might delay if you have rare model replacement parts, it can take a few days, depending on the availability of the automobile parts.

A skilled person with experience will help with the consequence of replacing the fuel pump, but otherwise, it can be delayed.

It can be complicated to replace the fuel pump in your vehicle by yourself, and if you are an amateur in the vehicle mechanism, this isn’t a good idea. For other reasons, it could also be risky, and you might not have the necessary tools to complete the process.

It is better to consult a professional, as the fuel pump is costly, and you don’t want to make mistakes.


It is essential to keep your fuel pump in good condition to maintain your vehicle. A good fuel pump will reduce your fuel wastage and give a smooth start to your car. A good fuel pump will not cause splutters or surges in the engine, making you comfortable while traveling.

Improper maintenance of the fuel pump will fail your gas emission test. Also, it is harmful to the environment when impure gasoline is emitted from your vehicle, polluting the air.


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