How long does a fuel pump typically last?

Fuel pumps are a simple and reliable part of the fuel system. They are usually located inside the fuel tank and are responsible for supplying fuel from the tank to the engine. Since this work is very important, and the location ...

Fuel pumps are a simple and reliable part of the fuel system. They are usually located inside the fuel tank and are responsible for supplying fuel from the tank to the engine. Since this work is very important and the location of the fuel pump is difficult to access, the pump has a solid construction. There really is no reason to preemptively replace the fuel pump before 100,000 miles. Fuel pumps have been known to last over 200,000 miles in some cases. After 100,000 miles, a pump failure is fairly likely, so if you are replacing a major part in a fuel system nearby, it may be advantageous to replace it at the same time.

What makes the fuel pump run longer?

General usage and fuel quality are the two main factors that affect fuel pump life. There are several ways the average driver can extend the life of their fuel pump with minimal effort:

• Always keep the tank at least a quarter of the way full.

  • The gas acts as coolant for the fuel pump, and if the tank runs dry, there is no fluid to cool the pump. Overheating shortens the life of the fuel pump.
  • The weight of the fuel helps push it out of the tank, and with less fuel, less pressure pushes it through the fuel pump, meaning the pump exerts more force (shortening its life).
  • Impurities and any debris from gasoline or from dust and dirt that get into the tank will settle to the bottom. When fuel from the bottom of the tank is sucked into the fuel pump, debris can cause damage. The fuel filter can protect the injectors and the engine from debris, but it does affect the pump.

• Keep the fuel system in working order.

  • Fuel system parts should function for a long time with proper maintenance. With regular inspections and replacement of the fuel filter, the parts will last as long as the manufacturer planned.
  • Make sure the gas tank cap has a good seal, otherwise fuel vapors can escape and dust and debris can get inside.

• Avoid gas pumps and gas stations that appear to be in poor condition. If there is water in the gas or corrosion on the injectors, it can damage the fuel system and shorten the life of the fuel pump. Cheap gas is fine, as fuel quality is well regulated in the US, but disrepair gas stations are still occasionally found.

When should the fuel pump be replaced?

It is not usually necessary to replace the fuel pump beforehand, but if the vehicle is undergoing other maintenance that includes the removal of the gas tank and the current fuel pump has been in excess of 100,000 miles, then replacing it can save money and time. in the long run.

If the fuel pump seems to be pumping and then not delivering enough fuel, have a qualified mechanic check it out immediately. A fuel system is essential to keeping a car running, and a poorly maintained fuel system is downright dangerous.