How Long Does It Take To Replace Fuel Pump? – A Full Answer

Car owners might face many undesirable car problems while riding. All the related fuel issues should always be one of the priorities. So, if you intend to change the car’s fuel pump, “how long does it take to replace fuel pump?” is the must-known question.

This article will bring you a detailed answer and further information about this car part. Let’s scroll down!

how long does it take to replace fuel pump

What Is A Fuel Pump?

The fuel pump is a mechanical part responsible for filling gas-liquid from the vehicle tank to the internal combustion engine, including a modern vehicle electric pump or an older model carburetor.

In addition, carburetor engines are mounted outside of gas tanks that use low pressure to draw gasoline through the fuel filter, while fuel injectors process inside out and are mounted in the gas tanks.

Fuel system pressure must be on a defined specification for the engine to run smoothly. Low pressure causes the engine to tilt, fizzle and vacuum leak, while too high pressure makes it polluted and deficient.

The fuel supplying systems diverse into two main types:

  • Mechanical Fuel Pump:

As an older version of electronic injection, mechanical pumps work best with carburetor engines. The two mainly used types are diaphragm and plunger types.

The mechanical diaphragm controls gasoline level by flexing the diaphragm downward to increase gas volume, then expelling it by bouncing it up again via the camshaft.

The plunger-type is a piston-like engine, with a plunger moving in and out of a chamber filled with gasoline along the inlet and discharge stop-check valves to control volume pumping.

Mechanical Fuel Pump
Mechanical Fuel Pump
  • Electronic fuel pump:

Evolving from the carburetor and replacing the mechanical type, electronic fuel pumps prove more capable of generating more fuel system pressure (40-60 pi) than mechanical pumps (10-15pi).

The electric fuel pump is a device that distributes gasoline into the cylinders of automotive engines. It works as the heart of a diesel engine and keeps it running smoothly by maintaining its rhythm.

Moreover, the injection gas drawing is traditionally driven indirectly from the crankshaft by gears that drive camshafts.

Electronic fuel pump
Electronic fuel pump

How Long Does It Take To Replace Fuel Pump?

Replacement pump time is particularly based on car versions. So, how long does a fuel pump take to replace? For example, the time to replace fuel pump 2001 Silverado can be different from replacing fuel pump Honda Accord.

Typically, the fuel pump replacement time takes 2-3 hours to replace this component. The process could modify to optimize gas pump working.

Gas tank, diesel engine location, mechanical or electronic injection type also affected the answer of how long will it take to replace fuel pump.

Replace Fuel Pump
Replace Fuel Pump

For example, replacing different fuel pump types such as Honda accord, 2001 Silverado, and others is typically identical to this process:

  • Lifts vehicles up.
  • Disconnect fuel filter and lines.
  • Remove tank straps and electric connections.
  • Remove the original fuel pump, install a new one, and then reposition the gas tank and wires.

How Does It Cost To Replace Fuel Pump?

In fact, the cost will depend on various factors; one of them is whether you bring it to the factory or do it yourself.

Due to that, the average expense spent on gas pump replacement is between $250 and $1,100.

With factories, labor costs are approximately $120 and $250, while parts prices are between $90 and $860. Estimates do not include taxes and fees.

Doing it by own hand could reduce the fee, but in exchange for more hours and effort, it could even be risky or malfunction. Factories lessen those weaknesses but need more budget.

Here are some price suggestions for a few particular car versions:

Car versions Fuel pump cost Labor costParts cost
2001 Dodge Neon fuel pump replacementAbout $215 $115-$145$441-$467
2003 Chevy Venture fuel pump replacementAbout $215$155-$210$490-$665
Harley Davidson fuel pump replacementAbout  $150-$500$120-$250$50-$70
Mercedes Benz fuel pump replacement ( for more details)between $610 and $895 (containslabor and parts)
Nissan Altima fuel pump replacement$150-$500, depends on age$65-$70$605-$725

How To Replace Fuel Pump?

After knowing how long does it take to fix a fuel pump, you might need to explore replacement methods to shorten the time.

The most effective way to repair a fuel pump is by replacing the defective parts. When replacing this item, you need to follow those steps gradually with a full set of required tools armed:

  • Disconnect the fuel line from the tank and plug it into a bolt to prevent leaking fuel.
  • Pull the vent out of the carburetor.
  • Clean up the dust and stain from fuel injectors.
  • Tug the bad fuel pump fitting and the line nut with a wrench.
  • Remove two attaching bolts left and take the old bad fuel pump away.
  • Sweep grit materials away from mounting surfaces of the engine.

The next thing to process is installing a new one, as follows:

  • Cover a new pump gasket with a new gasket sealer on both sides.
  • Slide the gasket over the bolt after attaching it to the new component.
  • Confirmation for the rocker arm is in the rear of eccentrics inside the engine or have both the engine and the new pump installed on the pushrod yet, then install it on the engine.
  • Attach the outlet line that leads to the carburetor.
  • Use a couple of wrenches to hold the component fitting and simultaneously tighten the line nut. Reattach the other end to the carburetor after connecting the line to the pump.
  • In case the engine has a vapor return hose, attach it to the gas tank along with the inlet hose.
  • Tighten all grips, then reconnect the battery cable to start the engine and check for any malfunctions.

How Long Does Fuel Pump Last?

Any fuel pump will wear out after taking a decent duration. This part is stiff enough to prolong the usage period for 100,000 miles in a regular state and even beyond with well-driving habits.

There’s a slight chance that your gas injector lives up to 200,000 miles. Though fuel pump failure is notable after 100,000 miles, you should replace it hardly in time.

Automotive Fuel System

How To Know When To Repair Fuel Pump?

What Is The Sign Of Fuel Pump Going Out?

Because of 100,000 miles lifelong, your gas supplier rarely needs any changing. As a result, the faulty fuel pump demands an update only when it starts to expose any abnormal signs.

You must put your attention in and take the vehicle to a mechanic or factory for inspection when any bad signs occur:

  • Strange noise: Instead of the usual buzzing sounds, you will get a humming noise when you start the engine or accelerate and potentially some irritating sound in the gas tank.
  • Stuttering engine: Your driving will be harsh when the pump is defective. For example, it goes smooth and then dead-stop in the middle of the road. You should check the fuses for a more precise resolution.
  • Unable to start the engine: This component is responsible for starting your vehicle using static pressure, so it can’t perform that function when faulty.
  • Gas deficiency: your gasoline supplier manipulated improperly, resulting in your engine absorbing more gas than needed. Fuel leaks from the lines are also factual references.
  • Heating: Too much or minimum gas amount cause your engine to increase temperature.
  • Check the dashboard: The fuel gauge light signal on the vehicle dashboards can occasionally detect something glitch that you can check for.
  • Dead engine: If the fuel pump, lines, or filters get clogged, it cannot transfer gasoline to the engine. When this happens, your engine dead, and you cannot start your vehicle. This reason is the most apparent sign of a weak fuel pump system operating improperly.

What To Do After Fuel Pump Goes Bad?

Numerous unexpected situations could arise when your gas supply system regulates improperly.

That’s why you should stop your vehicles immediately and make a complete inspection of your engine and fuel system components. Call emergency support for help if the problem is out of hand.

Don’t hesitate to carry the vehicles to a qualified mechanic and promptly get the engine checked if you are at home.


How Does The Fuel Pump Get Damaged?

Replacing the bad fuel pump is certainly expensive. With a little care, prevention is more smooth and glib.

There are the following ordinary reasons why your gas supplier gets damaged:

Gasoline contamination: Gasoline is exposed to debris, dust, and moisture, contaminating the tank.

Jammed strainers/filters: The contaminants jammed vital components, including filters, strainers, and pumps. This blockage eventually leads to long-term impairs on the vehicle and affects gas-liquid flow.

Energy starvation: The affections mentioned above cause shortness of gas-liquid flow to cool and lubricate the internal components. Low gas drawing pressure found on late models also causes combustion starvation.

Those two factors stressed the pump and got it overloaded for a long time, leading to a damaged system.

Electrical issues: Electrical fault is an extremely common reason for vehicles engine wear down in electrical systems, oxidized connectors, or melted connectors.

Always check connection carefully because failed connectors cause the system to fail very quickly.

How To Prevent Fuel Pump From Going Out?

User behaviors and components quality are the two biggest factors that affect your gas injection lifespan. You can extend its shelflife in the following way with minimum effort:

  1. Always keep the tank’s level more than a quarter of the way full. Gas-liquid will cool, lubricate the pump, and avoid absorbing debris or dirt inside when the gas level is at the bottom.
  2. Keep your gas drawing system maintained. Change the filter, connectors and regularly inspect to avoid injection overload and stress shortening its life.


At the end of this article, you have had the answer to “how long does it take to replace fuel pump?” and all the related information about its shelflife.

Now you can drive confidently without worrying about a mid-way dead engine due to a malfunctioning fuel system.

Keep in mind to put your eyes on the pump system routinely. Seeking reliable repair shops or an experienced mechanic to help with problems is always genuine.

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