How to spot a malfunctioning fuel pump

When push comes to shove, a malfunctioning fuel pump always mean one thing is in the cards: a car that won’t move. The fuel pump is responsible for sending gas to your fuel injector or carburetor. When a fuel pump malfunctions, it typically sends too little or too much fuel into your engine. While you might be able to travel for miles with a pump that is not functioning 100% properly, eventually the fuel pump failure will leave your car immobile.

Look out for these four major symptoms that indicate a bad fuel pump:

  1. Car Sputters at High Speeds
    If your car struggles to maintain speeds of around 55 mph or higher without having periods of “sputtering” or shaky speed control, it could be an early sign of a malfunctioning fuel pump. When your car is traveling at faster speeds a fuel pump needs to supply constant fuel with a stable amount of pressure. If your pump is failing it will struggle to keep up with the demand and cause your vehicle to sputter.

  2. Fuel pump not give you enough warning?

    Get help now.
  3. Loss of Power While Accelerating
    If your car looses power upon acceleration this is another telltale that your fuel pump may be malfunctioning. Because the pump is unable to maintain the correct pressure and give the engine the amount of fuel it needs, the result is an incorrect engine mixture of fuel and air and the stop of your vehicle.

  4. Surging
    Surging is associated with a sudden increase in speed that occurs while trying to maintain a constant one. This is a sign that your fuel pump may have sufficient wear and tear and that its irregular resistance within the motor is creating an inability to maintain consistent pressure resulting in surges of power.

  5. The Engine Will Not Start
    If a fuel pump has malfunctioned to the point where it is no longer able to deliver fuel to the engine the car will not start. The engine of your car will rev, however, without any fuel getting to the engine it will not catch.