close up of a fuel pump in the car

What does the fuel pump do?

14 March 2021, 04:42

The fuel pump, also known as a feed pump or submersible pump, is used to deliver fuel from the car's fuel tank to the engine compartment.

📍 Where is the fuel pump located?

On today’s cars, the fuel pump is attached to the car's fuel tank and is completely submerged in the fuel. As its name suggests, it will pump fuel from the tank and send it to the engine's injectors.

graphic of fuel pump

❔ How do I know if the fuel pump is defective or not working at all?

There are several signs that your car's fuel pump is faulty. This will cause poor fuel supply to the engine, causing the problems below:

  • Your car is jerking
  • Problems to start
  • Unusual noise from the tank
  • The engine stops unexpectedly

If you notice any of these problems, we advise you to take your car to a garage. A mechanic can diagnose the issue and verify if the problem comes from the fuel pump. They can test if the fuel pump is working properly by checking the fuel pressure and the flow rate of the pump.

💸 Cost for changing the fuel pump

The price of the pump itself is between £70 and £175 depending on its quality as well as the make and model of your car.
Replacing it is not complicated, but it can take time, as the fuel pump is not easy to access: in some cases the fuel tank will have to be removed.
So, counting the price of the part and the labor, the cost of changing the fuel pump can be between £130 and £300, depending on the model of your car.
To get the exact cost, request quotes on Autobutler: compare garages and book an appointment online in a few clicks.

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