How Can You Tell That Your Fuel Pump Isn’t Working?

The fuel pump is responsible for getting fuel out of the gas tank and up to the engine. The pump itself is usually located inside the gas tank. There are a handful of symptoms to look out for that could indicate a problem with the fuel pump:

  • Slow startup: If the engine takes a while to turn over once the key is turned in the ignition, the fuel pump may be having an issue getting enough fuel to the engine.

  • Struggling to accelerate: While the engine may still run with a failing fuel pump, it may take longer than usual to accelerate. Acceleration may feel noticeably weak.

  • Surging or bucking: A faulty fuel pump may also be delivering fuel inconsistently, causing the engine to lag from not getting enough gas then immediately surge forward when the right amount enters the cylinders with the throttle open. This is the most dangerous symptom as the power surging could cause the driver to lose control.

  • Whirring noise: If there is a buzzing, humming, or whirring noise coming from the area of the gas tank, there may be a problem with the fuel pump.

What can I do if I think my fuel pump is failing?

First and foremost, if the vehicle is bucking or having surges of power due to fuel delivery problems, the issue needs to be attended to immediately. This is a serious hazard for the driver and others on the road.

With any other symptoms, it is a good idea to get the issue looked at by a qualified mechanic. If the fuel pump fails completely, the car will be immobile. Treating the issue while the car runs will save time and money.


Next Step

Schedule Fuel Pump Replacement

The most popular service booked by readers of this article is Fuel Pump Replacement. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. We currently cover over 2,000 cities and have 100k+ 5-star reviews... LEARN MORE

SEE PRICING & SCHEDULING

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Recent Fuel Pump Replacement reviews

Excellent Rating

(1,334)

Rating Summary
1,241
46
11
6
30
1,241
46
11
6
30

Manuel

32 years of experience
580 reviews
Manuel
32 years of experience
Toyota Prius L4-1.8L Hybrid - Fuel Pump - Long Beach, California
As usual Manuel was very patient thorough and courteous. After having to come out there's so many times I am pleased that he had no issue with returning and was more than happy to address my concerns
Ford F-150 - Fuel Pump - Huntington Beach, California
Manual did an outstanding job replacing the fuel pump on my F-150. He was straight to the task, efficient, and extremely knowledgeable.

Greg

22 years of experience
333 reviews
Greg
22 years of experience
Ram 1500 V8-5.7L - Fuel Pump - San Tan Valley, Arizona
He was professional and did an excellent job with my truck. I will be a returning customer when I need work on my vehicles.
Mercedes-Benz C250 - Fuel Pump - San Tan Valley, Arizona
Greg, was courtesy and professional. Described the service in great detail. Thanks Greg, we will request you again.

Anton

15 years of experience
11 reviews
Anton
15 years of experience
Ford Excursion V10-6.8L - Fuel Pump - Staten Island, New York
Fantastic mechanic and person! Very knowledgeable. Works fast and efficiently. I highly recommend hiring him for any job you may have!

Ryan

5 years of experience
38 reviews
Ryan
5 years of experience
Jeep Cherokee L6-4.0L - Fuel Pump - Phoenix, Arizona
Let me know in advance he was running a little late. Knowledgeable and took care the issue quickly

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Related articles

How Long Does a Main Relay (Computer/Fuel System) Last?
Common signs include the engine not starting, inability to stay running for a long time, and no communication with scan tools.
How Long Does a Fuel Injector Last?
The fuel that resides in your gas tank has to be carried to various spots of the engine to be burned and used...
How to Troubleshoot a Gas Cap Cover That Won't Open
Gas cap covers, or fuel doors, get stuck closed and won't open if there's a faulty internal spring or lever, lack of lubrication, or bent fuel door.

Related questions

After fuel pump & filter replacements, car won't start
Hello there, I'll be happy to assist you! The problem is likely within the VATS (Vehicle Anti-Theft System) of the vehicle. More specifically the issue you are having is generally caused by broken sensor inside of the ignition lock cylinder...
Why does my car only run if we bypass the fuel pump relay on my 1998 Acura RL
Hi there. If the car will run with the relay bypassed then the fuel pump is fine. If the relay is fine also then the control for the circuit has a failure. Most of the time this is caused by...
Car is misfiring on cylinder 4, 5, and 6.
Check the harness to the fuel injectors to the cylinders 4, 5, and 6. There could be a loose connection or the injectors could have failed. Put a noid light on each injector and see if there is power to...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com