When Is It Time for a New Fuel Injector?

The benefits of fuel injection include lower fuel consumption and emissions, increased reliability and higher power and torque than a carbureted engine. These engines are longer-lasting with improved performance. When fuel injectors go bad, though, they need to be replaced for the health of the engine.

How Does a Fuel Injection System Work?

Unlike carburetors, which mix air and fuel, electric fuel injection systems inject fuel directly into the engine’s manifold. Fuel injectors are electronically controlled valves that atomize the fuel into a mist, which burns in the engine. They deliver fuel with timely precision that ensures clean and efficient production.

Generally, there is one fuel injector for every cylinder in your engine. While a four-cylinder car will likely have four fuel injectors, an eight-cylinder truck may have eight injectors.

Aftermarket fuel injectors are a great example of how fuel injection systems can power and modern performance to smaller cars. They are similar in size to factory-style injectors but the aftermarket fuel injector set allows you to set the flow rate and size injector that will best feed your engine.

How Do You Know When a Fuel Injector Goes Bad?

When a fuel injector is failing, it will give off any number of signs, all impediments to safe driving. Even Holley EV6 injectors, outstanding additions to an engine that deliver exceptional fuel flow with unlimited flow rate options, are immune to attrition from the road.

When you have a bad fuel injector, it should be recognized by your vehicle’s computer immediately, which will prompt your check engine light to come on. This is due to the fact that the normally steady gas intake is suddenly providing too much or too little fuel.

As far as performance issues, your vehicle could demonstrate any of the following:

  • Engine stalling
  • Fuel leak
  • Rough idle
  • Misfiring or vibrating engine
  • Poor fuel mileage
  • Not starting

Though newer vehicles are better able to compensate when a fuel injector is failing, it is recommended that if your vehicle exhibits these symptoms, you take steps to remedy the issue.

When Is It Time for a New Fuel Injector?

When your vehicle is acting up and you think it might be a fuel injector issue, it might not necessarily be time to swap them out for a new set. It could be that they are simply clogged with debris and need to be removed and cleaned.

Some fuel injectors are designed to last for the life of the vehicle, but the wear and tear of driving over time combined with a lack of proper maintenance usually means that they last between 50,000 and 100,000 miles. The average is about 80,000 miles. It is recommended that all fuel injectors get changed at the same time.Clean fuel injectors help ensure that your engine works at maximum performance and failure to remove them when they are failing can cause serious damage. Visit an auto parts website to view the current selection of fuel injectors, carburetors for sale and other parts and products for your vehicle.


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