What Is Fuel Injector Flush?

During a fuel injection flush, a cleaning additive is added to the injectors to flush the system and remove any build-up of fuel, wax, or dirt that may be clogging the injectors and not getting enough fuel onto the engine.

Is fuel injector flush necessary?

CARS.COM — Cleaning fuel injectors is a service frequently recommended by dealers and repair shops. But unless there are noticeable signs of clogged fuel injectors (such as a rough idle, stalling, poor acceleration or high emissions levels), it might not be necessary.

When should a fuel injector be flushed?

It is recommended to get fuel injector cleaning done after every 60,000 to 90,000 miles. If you've noticed a sharp decline in your fuel economy, a lack of power in your car, or have experienced a sluggish feeling when you accelerate, it could mean you need a fuel injection cleaning service.