fuel induction service

Fuel Induction Service – What Is It & Will It Help?

In Engine by Magnus Sellén16 Comments

Did someone recommend that you get a fuel induction service on your car?

But, what is a fuel induction service and will it improve the performance of my car? How efficient is it and is it just a waste of my money?

The fuel induction service is not very well-known for most people, and there are a lot of questions about whether it improves the efficiency of your engine or not.

Do not worry, in this article you will learn everything you need to know about the fuel induction service. So…Let’s go!

What is a fuel induction service and what does it do?

throttle body symptoms

This service known as fuel induction is nothing but a particular type of service and maintenance procedure for your car’s engine. It’s a process of cleaning the electronic throttle body, air intake valves and the fuel injectors which you can find in electronically fuel injected vehicles and the newer vehicles.

The throttle body and the plate are manually cleaned by the mechanic or technician using a particular throttle cleaning substance.

Here are the benefits of getting the fuel induction service:

  • Improves your car’s gas mileage
  • Smooths your engine’s idle
  • Improves the throttle response

What’s a throttle body?

If you don’t yet know what a throttle body is, it is a mechanism controlled by the car’s computer, responsible for taking in the air and fuel to mix it according to the right proportion and as per the computer’s input. The throttle body consists of a body and a plate which determines how much air is let in, similar to how the butterfly valve works in carburetors.

The throttle body is directly linking to your acceleration pedal and a sensor known as the TPS or the throttle position sensor which senses the current position of the throttle plate to add air to the mixture accordingly.

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The air adds according to the fuel present in the chamber or according to the real-time reading of your car’s ignition. Considering all this, we can say that along with air, the throttle body always handles fuel as well as your engine runs.

Why is a fuel induction service performed?

Fuel Induction Service

Now that you know what a throttle body is and how it works, you know that it is related to fuel and air. The purpose of it is solely to manage and control the air-fuel mixture to feed the engine so that your engine runs smoothly. With that said, fuel is continuously burning as you drive.

Sometimes not all the mixture is ignited accurately and completely which then leaves traces of unburnt fuel inside the chamber and throttle. But since the cylinders get hot enough and eventually burn all that gets inside the cylinders, nothing actually remains inside.

But since the intake valves, the fuel injectors and the throttle are constantly handling and passing on the fuel to the cylinders, carbon starts to build up over time due to all that fuel.

As the carbon builds up, the throttle then begins to store all the deposit, and this interferes with the accurate fuel delivery and mixture. Why is that a problem? It is because it directly impacts the combustion cycles of the engine and thus affects how your car drives and responds to you giving throttle. Your vehicle may not perform as well as it used to, causing a delay in pick up.

The carbon deposits also impact the idling of the engine, especially with the air conditioner turned on. You may experience that your car vibratesyour car vibrating as you press on the gas pedal and your car shivering when stopped.

Pros of a fuel induction service

  • Cleans the throttle body
  • Cleans the intake manifold
  • Cleans the intake valves
  • Cleans other flaps inside the intake manifold if fitted

Signs that you may want to do a fuel induction service?

You know now what the fuel induction service does for your engine, but the question arises; hould you get the service done frequently? While the fuel induction service does benefit your car, this is something that should not be done regularly and only if you encounter problems individually as a result of carbon building up.

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Here are a few signs and symptoms you can look for to determine if you should get a fuel induction service done.

  • Your car isn’t able to idle smoothly
  • You feel the vibration as you give gas
  • You feel a delay in the engine’s pick up as you press on the gas pedal
  • You experience an extremely low gas mileage
  • The car doesn’t start as quickly as it used to

Only if you begin to experience these factors, should you think about getting a fuel induction service. Also, you should understand that having this service done to your car does not increase the gas mileage to more than what your vehicle usually gives when running correctly.

Only when you experience that your mileage and engine performance has gotten far worse, you will feel a difference after getting the fuel induction service.

What does this service include and how is it performed?

intake valve cleaner

This is something that you may not be able to perform yourself. This procedure involves taking off the air filter and the cover and exposing the throttle body. If you have ample knowledge about engines and you are familiar with the engine components and frequently work on your car yourself, only then should you do the procedure yourself.

Sometimes the throttle body itself is taken out of the engine which is why it is advised to get a mechanic to get the induction service on your car done.

Throttle body cleaning

The carbon deposits appear as black dust on the surface of the throttle body inside. The mechanic or technician would first remove the throttle body from the engine. A particular compound called the throttle cleaner is used to clean the carbon. This is a liquid substance and comes in spray cans.

If you want to do this procedure yourself, you may need some tools like this intake valve cleaner from Amazon: EWK Vacuum System Fuel Injection or Intake Valve Cleaner and Tester Kitir?t=askamastermec 20&l=am2&o=1&a=B01EEU0HA4

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A sign of warning though, although this cleaner comes in spray cans, it can be directly sprayed into the throttle body, but it should never be sprayed directly into the throttle body because there are various sensors installed directly onto the throttle body and the liquid can seep into them, causing them to stop working.

These sensors are crucial for your throttle body and extremely expensive to replace so never spray the cleaner directly onto the throttle body if you are performing the procedure yourself.

Intake valve cleaning

The mechanic will spray the compound onto a piece of cloth or rag and then manually clean the inside of the throttle by hand so that no liquid comes in contact with the sensors. After the throttle body is washed and the plate is done, the mechanic then performs the cleaning of the intake valve.

This is done by spraying the liquid into the intake valves while the engine is running. This feeds the engine with throttle cleaner fluid along with the air which gets into the mixture and gets ignited. This ensures cleaning the carbon deposits inside the intake valve and the fuel injectors where the mechanic cannot reach manually.

The compound breaks up the deposits inside, and the remains are let out via the exhaust.

16 thoughts on “ Fuel Induction Service – What Is It & Will It Help? ”

  1. Thank you for explaining this process. I recently purchased a 14 Santa Fe Hyundai, I’ve never owned a Hyundai so I’m not sure of the sounds, feel and quirks of the brand. Over the past 3 months I have noticed some odd things with regards to shivering while at a stoplight or slight delay when I accelerate quickly such as when entering onto the freeway, also the engine idles hard. The dealership suggested fuel induction service at my 1st oil change. At first I thought it sounded bogus and some research leans that way but after reading your article I think it’s possible I could need this service. I’m the 3rd owner of the vehicle and although the previous owner has excellent records I think this could be needed. Thanks again!

    1. Author

      A fuel induction service could absolutely fix your problem. However, in this case, I think it’s smarter to make a proper diagnostics of why the car is running poorly before doing the service. At least read the trouble codes from the engine control unit to see if there are any errors stored.

    2. I have a 2018 Rav4 XLE and the Toyota dealership said that they recommend the fuel induction service done on my next visit… I find that odd on such a new vehicle. I have 23,260 miles on it. Does this sound like a scam?

  2. My 2009 Hyundai Genesis was getting highway mileage 27 mpg. After the dealer talked me jnto induction service that I wasn’t too sure about, the car’s mileage increased to 30.2 mpg on a 1200 mile trip.

    1. That’s because you went on a 1200 mile trip which was likely all highway driving which allows you to have better MPG.

  3. My 2015 Sonata has 96,000 km and is well maintained with regular oil changes and service maintenance. The dealer is now indicating that a Fuel Induction service is required immediately. I have not noticed any stubborn acceleration, idling or any other issues normally associated with the need for this type of service. Could they be recommending this service simply because of the high mileage on the vehicle

  4. Ha!
    The new GM dealership where I had bought my new 2013 Buick Encore is regularly recommending services that are not in the owner’s manual. Fuel/air induction service is the latest of several, many of which I can do myself easily. Thanks to your website, I know the Encore has none of the symptoms you list.
    When the heater stopped working, my husband noticed the overflow container for the coolant was empty and the screw top was only loosely in place, thanks to the same dealership with their multi-point check when the oil was changed. That’s a scary place.
    You’ve saved me from any concern, time, effort, and $. Thank you.

  5. I have 2016 Mazda CX-9 with 45000 miles on it. I have mixed driving-highway and local.
    The service advisor has not only recommended fuel induction service twice so far during last few service trips, but he also said I should have done that service twice by now.
    I asked him, I did not see it in the manufacturer recommended service schedule so why would my car need it? He did not have any satisfactory answer.

    Having said that, I don’t think I need to spend that $150.00 for no reason. Any tips/suggestion from anyone?

    1. Research Sea Foam Pour & Spray Combo Pack. Use this religiously and you’d be better off in the long run especially that you don’t have too many miles. My truck has 135, 000 miles.. However, if your car experiences any of the symptoms that may indicate your injectors need a professional cleaning done, then at that time i would get a fuel injector cleaning.

  6. Is this service needed with a 2015 Ford fusion with approximately 59k on it , and showing no symptoms. There calling me in for routine maintenance.

  7. I have a 2013 Toyota Prius with 165,000 miles and my mileage has really decreased. When I first bought it I was getting 50+ mpg. Now I am getting around 38 mpg. Could this service significantly improve my mileage? I also seem to go through a quart of oil every 800 miles or so.

    1. I have a 2016 VW Passat w 61k miles. Had been experiencing lag in power when trying to accelerate quickly. Hwy mileage dropped to 33-34 mpg from 38-40 mpg. Had induction service today. After driving about 5-7 miles afterwards, car drove and responds as when I first bought it. I did not realize how bad the performance had become. It cost me $240. Typical VW dealer overpricing. Won’t say what I paid to have them replace a battery. Induction costs worth it to me.

  8. The service center I use recommended a fuel induction service and an evap canister vent valve. My 2015 Rogue is running pretty rough, stuttered and struggled to get to 30-40 mph this morning. I’m thinking the fuel induction service will take care of the problem, but is it your opinion that I should get the evap canister vent valve replaced as well? It’s double the cost of the fuel service, so if I can hold off on it, I will. Thanks in advance for any advice!

  9. My 2017 Kia Sportage has 24,000 miles. The dealership ids recommending fuel/air induction service. This seems a bit soon to me.?.?.

  10. The dealership recommended this service, saying it “failed” on inspection (not state inspection). Funny enough, I had noticed acceleration being slightly delayed in the past month or two. It idles smoothly and has no vibration when giving gas. I’m not sure about the mileage because I haven’t been driving due to stay home orders. If my car has just one of the 5 signs/symptoms you listed, does it need the service?

  11. I purchased a 2015 Hyundai Santa Fe Sport 2.0 Turbo in December of 2018 from a Hyundai dealership and even purchased the Hyundai extended warranty . The car had about 32,000 miles on it when I purchased the car. Prior to purchasing it I test drove the car a couple of times and even kept it overnight to drive it more in order to see how well the car drove on the highway and in the city and I payed special attention to the mileage per gallon to see how the fuel economy was. I was very pleased with the results and felt the car was pretty efficient with fuel consumption. I decided to purchase the car and right before purchasing the car I realized there was an update to the engine that was never done by the Hyundai dealership (it was noted on the Carfax). I asked about the update and they apologized that it wasn’t done and said that it was an oversight and they would make sure it was done before I picked up the car. The update was done and ever since then the cars fuel economy is terrible. The car seems to suck gas like crazy. I brought this to the attention of the dealerships service department at the first scheduled maintenance appointment and was told it was because it’s cold out so the car needed to use more gas to warm it up. The next service appointment was during the late spring and I again voiced my concerns about the gas mileage. This time I was told it’s starting to get warmer so you are probably running the air conditioner more. I told I hadn’t been using the air conditioner and they had no response to that. Now they are telling me that they noticed my car was running a little rough and that my car needs a fuel induction service. They said I don’t know if you’ve noticed you’re using more fuel than normal but if you have this done you will find your car will be more efficient with fuel consumption. I’m very frustrated because I feel like something has been off with the engine since the update was done and I’ve been getting the run around. Have you heard of this happening with this car model after the engine update recommended by the manufacturer? Do you think the fuel induction service should be done and would help my situation?

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