Current Turnaround Times

Standard Service – 3-4 Business Days

Expedited Service – 1 Business Day

Last Updated 12/29/2025 at 10:59am

Automotive Injector Cleaning Services

Your vehicle’s fuel injectors are crucial for optimal engine performance, fuel efficiency, and reduced emissions. Over time, however, engine gunk, hydrocarbons, additives, and ethanol in modern fuels can cause these injectors to become restricted and clogged. This can lead to various drive-ability issues and potentially even catastrophic engine failure.

At Injector Rx, we offer a cost-effective and reliable ultrasonic fuel injector cleaning and electronic flow testing service specifically designed for automotive fuel injectors. Our OEM-approved process will restore most automotive fuel injectors to a reliable, like-new condition, saving you money compared to purchasing new and expensive replacements.

Why Choose Our Automotive Injector Cleaning Service?

  • Improved Performance: Clean injectors ensure each cylinder receives the correct amount of fuel, leading to smoother engine operation and restored horsepower.
  • Enhanced Fuel Efficiency: Properly functioning injectors optimize fuel delivery, helping you achieve better mileage.
  • Reduced Emissions: Correct fuel atomization and delivery contribute to a cleaner and more efficient combustion process, lowering harmful exhaust emissions.
  • Prevention of Costly Repairs: Regular injector cleaning can prevent the long-term damage caused by clogged or malfunctioning injectors.
  • Thorough and Guaranteed Cleaning: Cleaning fuel injectors outside the engine using ultrasonic technology provides a far better result than fuel injector cleaners added to the tank. Our process includes visual inspection, ultrasonic cleaning, and flow testing to guarantee measurable results.
  • Comprehensive Testing: We don’t just clean; we also perform a series of tests, including ohm testing, leak testing, spray pattern analysis, and flow rate measurements, both before and after cleaning. This ensures your injectors are functioning correctly.

Our Automotive Injector Cleaning Process:

Our detailed cleaning and testing process ensures that your automotive fuel injectors are returned to you in optimal working condition:

  1. Ohm Testing & Visual Inspection: Upon receiving your injectors, we first test their electrical resistance and inspect them for any external damage.
  2. External Cleaning: The injectors are then externally cleaned and numbered for tracking.
  3. Leak Testing: We pressurize the injectors to check for any leaks at the pintle, ball, or disc seat.
  4. Initial Flow Testing: We perform initial flow testing to assess the spray pattern, atomization, distribution, and flow rate. These results are recorded.
  5. Component Removal (if applicable): If manufacturer-approved replacements are available, we remove filter baskets, O-rings, and pintle caps.
  6. Ultrasonic Cleaning: The injectors are placed in an ultrasonic bath with a biodegradable cleaning solution and pulsed open and closed thousands of times to remove internal deposits.
  7. Back-Flushing: After ultrasonic cleaning, a high-pressure back-flush is performed to remove any remaining particles.
  8. Final Testing: The cleaned injectors are re-tested for leaks, spray pattern, atomization, distribution, and flow rate. These results are compared to manufacturer standards.
  9. Component Replacement (if applicable): New O-rings, filter baskets, and pintle caps are installed.
  10. Lubrication and Packaging: The serviced injectors are lubricated and placed in sealed poly bags.
  11. Comprehensive Test Report: A detailed report of the before and after flow testing results is prepared and returned with your cleaned injectors.

Types of Automotive Injectors We Service:

We service most types of gasoline-based fuel injectors found in cars and trucks, including:

  • Multi-Port Fuel Injectors (MPI)
  • Gasoline Direct Injectors (GDI)

 

Please note: We do not service diesel injectors or GM Vortec CPI injector “spider” assemblies.

The Drawbacks of DIY and Fuel Injector Cleaners:

While DIY fuel injector cleaning might seem simple, it is often ineffective, dangerous, and can pose a fire hazard. DIY methods lack the proper equipment for thorough cleaning, testing, and verification of results. In fact, 100% of fuel injectors we have tested after DIY cleaning failed minimum performance standards.

Similarly, fuel injector cleaners added to your gas tank can loosen debris that then clogs the small filter baskets within the injectors. Rail-induced cleaners can even damage injector components. These methods also offer no way to verify actual cleaning or performance improvements. Cleaning injectors by removing them from the engine is the only accurate, reliable, and guaranteed way to confirm they are clean.

Benefits of Choosing InjectorRx:

  • Guaranteed Results: We stand by our service. If we cannot restore your automotive fuel injectors to function like new, you will not be charged for the time spent on those injectors.
  • Experienced Professionals: We have been servicing fuel injectors nationwide since 2006.
  • State-of-the-Art Equipment: We use manufacturer-approved, computer-controlled ultrasonic cleaning and flow testing equipment.
  • Fast Turnaround Times: We offer standard and expedited cleaning services to minimize downtime.
  • Convenient Service: We service customers nationwide. Simply follow our shipping instructions to get started.
Ready to restore the performance and efficiency of your vehicle?

or call us today at 1-800-381-2065 for more information. Let us help you clean your automotive fuel injectors the right and only guaranteed way!