How does a fuel pump work?

A car’s engine burns a mix of fuel and air to generate power. Fuel is pumped along a pipe from the tank and is blended with air in the carburettor, where the engine sucks in the blend. A fuel pump attracts fuel out of the tank via a pipe to the carburettor. The pump could be mechanically operated by the engine – or it might be electric, in which case it is typically near or inside the gas tank.

A mechanical fuel pump is powered by the camshaft. As the shaft turns, a cam passes under a revolved bar and also compels it up at one end. The other end of the lever goes down and takes the diaphragm with it. When the lever goes down, it creates suction that draws the gas through the fuel pipeline and into the pump. The diaphragm can move up only by getting rid of oil from the chamber. The petroleum cannot return through the one-way valve, so it goes out through another one that leads to the carburettor. An electrical fuel pump has the same diaphragm-lever format, but instead of the camshaft, a solenoid (an electromagnetic switch) offers the pull on the diaphragm. The solenoid draws in an iron pole that draws the diaphragm down, drawing petroleum into the chamber.

How do I know if my vehicle needs a fuel pump service?

The following are some indications of a damaged fuel pump:

  • Whining noise from the fuel storage tank.

If you listen to a screeching or whining sound originating from the fuel tank while the vehicle is running, there may not be enough gas, a harmed pump, or an impurity in the system.

  • Trouble starting.

Fuel pumps can eventually wear down with time because they are frequently running whenever the ignition is activated. A broken fuel pump can cause the auto to take a lot more cranks to start than usual, and in more major circumstances can even cause the vehicle to require a lot of turns of the key before starting.

  • Engine sputtering.

If you are driving at a constantly high speed and your engine all of a sudden begins sputtering before returning to normal, this implies that the fuel pump can not provide a constant stream of fuel to the engine at the perfect stress.

  • Stalling at high temperatures.

Stalling incorporated with a high internal temperature degree in your automobile potentially suggests there is an issue with your gas pump’s motor.

  • Loss of power under stress.

If you experience a loss of power when you are driving uphill, carrying a hefty load or even while accelerating, this shows the fuel pump is weakening because it can not stay on par with the increased demands of your auto.

If you are experiencing several of these symptoms and signs with your vehicle, you can bring your automobile to Auburn Euro Motors in Auburn to get it taken care of.

Your Trusted Shop for Fuel Pump Repair

We at Auburn Euro Motors in Auburn are experts in all things auto repair. We’ve been fixing cars since 1997 and our team has decades of combined experience. Here some reasons you should choose Auburn Euro Motors in Auburn:

  • We have a six month payment option (upon approval) to make it easy on your wallet.
  • We offer a 36 month/36,000 mile nation wide Parts and Labor warranty on most repairs.
  • We offer courtesy rides and loaner cars (by appointment) after drop off hours to fit your busy schedule.


To schedule an appointment with Auburn Euro Motors in Auburn, give us a call at 530-268-1870 or schedule an appointment online.

Fuel Pump Repair

For honest and efficient Fuel Pump Repairs in Auburn, CA, turn to the capable team at Auburn Euro Motors. “Life’s too short to drive boring cars.”

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