Q: Q: Is My Fuel Pump Working?

asked by on

Is my fuel pump working?

If your engine starts and runs, then the answer is: "Yes, your fuel pump is working."

But what if your engine doesn’t start and run? Is your fuel pump working then? This is actually one of the first things that drivability technicians look at when diagnosing a vehicle no-start.

On fuel-injected vehicles, checking for fuel pump operation requires several checks.

First, when you turn the ignition key to the “ON” position, can you hear the fuel pump operate inside the fuel tank? If the answer is yes, then how much fuel pressure is it generating? This is done by attaching a fuel pressure gauge to the fuel rail on the engine. If the answer is no, then why not?

Is there a blown fuse, a bad relay, or a bad electrical connection somewhere? Answering these questions takes more time and further diagnosis.

If the cause of a non-functioning fuel pump is actually the fuel pump, contact a professional mechanic who can replace that fuel pump for you. You don’t come to us; we come to you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Is My Fuel Pump Working?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: What is going on with my car?

Hi there. Check the fuel injectors and see if they are working or not. If the fuel injectors are not working, then you would need to replace the fuel injectors. If the fuel injectors are fine and the engine operates...

Q: What does the check fuel cap alert mean?

When the check fuel cap alert shows up on the information display, it means that the fuel cap has not been properly tightened. When the cap is secured correctly, the alert will disappear.

Q: I am going to replace my fuel pump and I need advice

Diagnosing a hesitant engine will take some testing and the process of elimination. Being 10 years old, the vehicle is likely due for some work, and you should keep any recent repairs in mind while looking into this. Considering the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...