The High Cost Of Putting Off Fuel Pump Replacement

There are many moving parts that work together in unison to ensure an automobile runs properly. The fuel pump is one of the most crucial components. It is responsible for delivering fuel from the gas tank to the engine. If the fuel pump has gone bad, the vehicle can not run.

Since the fuel pump is so essential to a vehicle’s operation, you may be wondering “How do I know it’s time to replace the fuel pump?” The fuel pump should be replaced when it starts to fail, but figuring that out is another task itself.

How To Know When A Fuel Pump Is Going Bad

leaking fuel filter
Image Credit: DannysEnginePortal

There are 5 main symptoms to look out for to detect a failing fuel pump. Those are:

  • Lack Of Power Under Load – If the engine isn’t receiving adequate gasoline from the tank, it can’t produce power as intended. This results in a noticeable difference when accelerating.
  • Hard To Start Or Won’t Start – An engine that won’t start could be one of many things. A failed fuel pump is one of the common causes.
  • Can’t Sustain Speed – Because the engine is being starved for gasoline, it struggles to deliver and maintain power and speed.
  • Check Engine Light With Engine Running Lean – The engine could be running lean for a variety of reasons. When not enough fuel in the engine’s air-fuel mixture, it runs lean and throws a check engine light.
  • Whining Noise From The Fuel Tank – This is a noticeable physical symptom of a failing fuel pump. The fuel pump is located in the fuel tank, generally around the back seat or trunk area. If you hear a louder than normal whining sound from this area, then it could be a sign of a failing fuel pump.

All of these symptoms can point toward a faulty fuel pump. However, a few of these can be indicative of other issues with your vehicle as well. Refer to this guide on diagnosing a faulty fuel pump to help pinpoint your issue, or download our Fuel Pump Troubleshooting Guide here.

Why You Shouldn’t Put Off A Fuel Pump Replacement

Fuel pump replacement

A fuel pump that is beginning to fail will fail completely, probably sooner than later. If you wait till your fuel pump fails, you will be left stranded with an inoperable vehicle. If you think the fuel pump is on its way out, it’s best not to put off the replacement. Replacing a faulty fuel pump can be a tall order. In some cars, it involves removing the vehicle’s gas tank and replacing the accompanying fuel filter. Many newer vehicles provide an access panel to get at the pump from above, making the job much easier.

Be sure to seek out a model-specific trusted tutorial before beginning, and choose the highest-quality parts for the job. Looking for a place to get a high-quality replacement fuel pump? Check out GMB’s product page and find the right fuel pump for your car, SUV, or heavy-duty truck. If you have any questions, feel free to contact us.


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