How Long Does A Diesel Fuel Pump Last?

by | Last updated on January 24, 2024

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How Long Do Fuel Pumps Last? Fuel pumps are not part of a regular maintenance schedule and only need to be replaced when they fail. Most fuel pumps should last

well past 100,000 miles

.

How much does it cost to replace a diesel fuel pump?

The average price for a Fuel Pump replacement starts around

the $350 mark

and can go all the way up to $900+ depending on your fuel type and engine performance.

What are the symptoms of a faulty diesel fuel pump?

  • Jerks or sputters at high speeds.
  • Power loss on acceleration.
  • Power loss while driving up a slope.
  • Power loss while towing.
  • Engine surging while acceleration is not engaged.
  • Engine will not fire.

What are the signs your fuel pump is going out?


Unusual noises, sputtering or backfiring

may also be indicative of a bad fuel pump. If the flow to the fuel injection system in the vehicle is not consistent, the engine may develop problems. Watch for things like a hesitant start or take-off, or a problem with starting the vehicle.

How long does a diesel pump last?

Fuel pumps have been known to last for

over 200,000 miles in

some cases. After 100,000 miles, the failure of the pump is likely enough that if you are replacing a major part in the fuel system nearby, it may be advantageous to replace it at the same time.

Are diesel engines expensive to repair?


Diesel engines can be more expensive to service

, with their fuel system components often costing many times more than the equivalent part for a petrol engine.

Is it worth replacing a fuel pump?


It is usually unnecessary to preemptively replace the fuel pump

, but if there is another service being performed on the vehicle that involves removing the gas tank, and the current fuel pump has been running for over 100,000 miles, then replacing it could save money and time in the long run.

What happens when a diesel injector pump fails?

Bad fuel injection timing may lead to low engine performance and can

cause the engine to misfire

. It can also cause overconsumption of fuel, loss of power, and excess smoke production.

How do you test a diesel fuel pump?



Use a fuel pressure gauge

: Attaching a fuel pressure gauge to the pulse hose coming out of your fuel pump will help you show if your fuel pump is putting out the right pressure. Any reading below your manufacturer’s specifications means you probably have a defective fuel pump diaphragm or check valve.

How do I check if my fuel filter is clogged?

  1. Poor Engine Performance. Under heavy or high-speed acceleration, a clogged fuel filter may cause the engine to randomly hesitate, surge or sputter. …
  2. Hard Starting. …
  3. Stalling. …
  4. Random Misfire or Rough Idle. …
  5. Fuel System Part Failures. …
  6. Check Engine Light (CEL)

Can I drive with a bad fuel pump?



It is not safe to drive with a faulty fuel pump

because when a fuel pump is faulty, it can no longer supply the fuel system with constant fuel pressure and your vehicle won’t start, it can stall, or even completely shut down at any time.

Is it bad to run a diesel with a bad injector?

Left too long, a faulty fuel injector

can cause serious engine damage

that requires major repair. Avoid the cost and hassle by using Rislone Gasoline Fuel System Treatment or Diesel Fuel System Treatment every 3,000 to 5,000 miles, depending on the type of driving you do.

How much does it cost to replace diesel injectors?

Getting your fuel injectors replaced is part of maintaining your vehicle. The cost of a replacement includes parts and labor. The labor can cost between $200 and $300, while the cost of the

parts will vary from $150 to $600

.

What causes black smoke in a diesel engine when accelerating?

Black smoke indicates that the fuel is not burned properly. The internal combustion process in diesel cars requires a certain mixture of fuel and air. … This faulty process forms

solid carbon residue

, which causes a ​black smoke from the exhaust of the diesel engine when accelerating your car.

Are diesels worth the money?

If it comes down to two comparably equipped trucks, one gasoline-powered and one diesel-powered, with similar mileage, the

diesel pretty much always comes in with a higher resale value

. Diesels are known for their exceptional reliability and longevity, making them prime purchases for consumers who choose to buy used.

David Evans
Author
David Evans
David is a seasoned automotive enthusiast. He is a graduate of Mechanical Engineering and has a passion for all things related to cars and vehicles. With his extensive knowledge of cars and other vehicles, David is an authority in the industry.