If you’ve ever been recommended a fuel induction service, but you’re not sure what it is, you can find out below. A fuel induction service is done by a mechanic and it’s done by going through your fuel system. You’re probably wondering If the service is worth it, how it’ll improve the vehicle, and what it is. If you’ve noticed that your vehicle isn’t performing how it used to be, or the fuel efficiency has dropped, then it’s time to get a fuel induction service. Over time your vehicle gets old and the fuel system starts to wear down, in this case, you’ll need to get the fuel system checked out.
What is a Fuel induction Service?
A fuel induction is a particular type of maintenance for the vehicles fuel system and engine. The process involves cleaning the fuel injectors, air intake valves, and throttle body for fuel and carbon deposits that use Gasoline Direct Injection. These parts are cleaned by using a cleaner spray or foam to clean the intake system – this is all done without taking the engine apart.
Depending on the dealership you go to, they’ll get this service done as part of a package or it’ll be recommended as an individual service. For example, they’ll recommend cleaning the throttle body or to add a fuel treatment additive into the tank. The fuel induction service is part of normal routine maintenance but it’s helpful to get it done because it can help to improve a lot of things in the vehicle – this is especially true for engines that have a high mileage.
During gasoline direct injection or GDI, the fuel injectors spray fuel into the combustion chambers under high pressure. Engines with a direct injection are 20% more efficient that a normal port fuel injection – however in normal port fuel injection, the injectors spray on the intake valves which means they also get cleaned.
In gasoline direct fuel injection, fuel is sprayed under the intake valves rather than on the back of them, therefore, some GDI engines accumulate carbon deports on the back of the intake valves since they don’t get cleaned. The difference between you having a direct injection or port fuel injection is where the fuel injectors are located – in direct injection engines, the fuel injectors are located within the engine cylinder. In port injection engines, fuel injectors are located in the air intake of the inject. Most modern vehicles have a conventional port fuel injection – a lot of gasoline-powered vehicles have a direct injection while others have a fuel port injection. In an attempt to reduce emissions, manufacturers have started to switch to direct fuel injections.
Because of this carbon build up on the back of the intake valves, it can affect vehicles are do short frequent trips and drive in cold weather. If you’ve had your vehicle for some time and the engine has high mileage, then the vehicle is more likely to be affected since the carbon build-up is gradual.
Symptoms of Too Much Carbon Deposits
If you’re wondering if there’s too much carbon deposited on the engine and intake valves, then you can check for a few symptoms.
Rough idling – this is when the vehicles at a low RPM, for example, you’re at a traffic light waiting and you notice that the vehicle has a rough movement to it rather than a smooth movement.
Vehicle vibrating when you floor the throttle – If you notice that the vehicle is vibrating when you floor the throttle, this can be a big indicator that there’s a big accumulation of carbon deposited on the intake valves.
Delay in the engine when the throttle is floored – If you notice that the engine isn’t responding correctly when you floor the throttle, this can be an indicator that there’s too much carbon.
Low gas mileage – if you notice that the gas mileage is low, then this can indicate that the carbon deposits are affecting the intake valves.
Car not starting quickly – if you notice that the vehicle isn’t starting as quickly as it used to, this can indicate that there’s too much carbon deposited on the back of the intake valves.
If you notice any of these symptoms, it’s time you should start considering getting a fuel induction service. If your gas mileage is performing badly, then it’s important to know that getting this service done doesn’t increase the gas mileage to more than what it normally is. The gas mileage will only be improved if you noticed that it got significantly worse – once the service is done, then you’ll notice that the gas mileage will be improved.
Making Sure You Never Need a Fuel Induction Again
There can be a lot of reasons why you’ll need a fuel injection. The main reason, however, is due to poor maintenance of the intake valves, fuel injectors, and the throttle body. Because these parts are never maintained, they can build up with carbon and interfere with the combustion process. If you do routine maintenance and service your vehicle often, it’s rare that you’ll have to see a mechanic for a fuel injection service or any other reason.
If you want to avoid fuel injector problems and save $100s of dollars that you’ll spend at the auto repair shop, you’ll need to service your vehicle often – you can use our mechanic-rated Auto Maintenance and Repair Manual to do this. It’s basically what mechanics use to go through your vehicle to check if there are any problems that need fixing. As soon as they notice the most minor problem, they’ll ask you to fork out some money even though it’s a problem you can fix yourself in minutes – the manual will teach you how to maintain your vehicle every few thousand miles and it’ll teach you how to fix minor problems that mechanics will ask you to pay for; saving you money in the long run.
A lot of our readers have the Auto Maintenance and Repair Manual printed on their garage wall and 92% of them haven’t visited the auto repair shop in the last year because they know what to do to avoid problems. All it takes is giving your vehicle a little attention every few thousand miles and you’ll never spend money at the workshop again.
What Happens in a Fuel Induction Service?
Since most people won’t be able to service their vehicle themselves, you’ll have to go down to the dealership if you want to get the fuel induction procedure done. The procedure will be done by removing the air filter so that the throttle body is exposed.
Throttle Body – the first thing that will get cleaned is the throttle body. On the throttle body, carbon can build up and this will appear as black dust on the surface of the body. The mechanic will first remove the throttle body and clean it using a throttle cleaner. If you know how to remove the throttle body, then you can clean it yourself using an intake valve cleaner (View on Amazon).
This cleaner will come in a spray can and you can directly spray it onto the throttle body, but you should never spray it into the throttle body because it can damage the sensors inside. This can cause them to stop working – they are also extremely expensive to replace so it’s best not to get them damaged in the first place.
Intake Valve Cleaning – Since carbon can build up on the back of the intake valve, it will need to be cleaned. This will be done by using a spray and a piece of rag or cloth. The cloth will be used to clean the inside of the intake vales because there are sensors inside that can get damaged if a spray is used. Once the throttle body is washed, the intake valves are cleaned using a spray – this is done while the engine is running – this causes the cleaner fluid to get into the engine with the air that gets mixed in the air fuel mixture. This makes sure that carbon deposits inside the intake valve is cleaned.
Do You Need a Fuel Induction?
If you’re wondering If you need to get the fuel injection done, then you’ll need to check if you’re experiencing any of the symptoms. Not all vehicles have accumulated carbon deposits on the back of the intake valves. If you have port fuel injections, then you shouldn’t worry about this at all.
Only vehicles that have direct injections have built up carbon so if you do have a GDI engine, you should consider getting it checked out – a lot of engines are both direct and port meaning that the build-up of carbon won’t be too excessive. If you have a high engine mileage, you should consider getting the fuel induction service. Another major way you’ll know you need it done is if a mechanic recommends it to you – in this case, they’ve probably checked out the intake valves and seen the carbon build up so they know that it needs cleaning.
You should consider researching your vehicle to check if the problem is common with vehicles of your specific make and model. If your gas mileage is low, you use high graded synthetic oil, never miss an oil change, the vehicle starts up quickly, it’s smooth when you’re idling at the traffic lights, and the check engine light comes on, then you won’t benefit much from a fuel injection service.
You should check if the vehicle itself has any drivability issues that would cause it to need a fuel injection service. If you’re able to check yourself and you know that there’s a lot of carbon built up in the engine, then you’ll need them cleaned. To do this, you’ll need to remove the intake manifold and clean the valve ports manually or with media blasting.
These procedures can be expensive and the price increases depending on how big the engine is. It can cost between $400-$900. When the procedure is getting done, you’ll need to make sure the chemicals used to clean the engine are approved by the manufacturer. To check this, you’ll need to check on the service manual and look for any guidelines the manufacturer has imposed for fuel induction services. When getting the service done, it beneficial to get it done somewhere that specializes on the brand of your car.
Why is the Fuel Induction Service Done?
The fuel induction service is done so that the correct air-fuel mixture is made and controlled so that the engine is fed right. The engine needs the right fuel air mixture so that it can run smoothly. If the combustion process isn’t done properly because of the incorrect air-fuel mixture, this can cause problems like a misfire. As you drive, fuel and air are continuously burning, and sometimes the air fuel mixture doesn’t all get burned. There can also be traces of unburnt fuel in the chamber and the throttle. However, due to the heat the engine gives off, the unburnt fuel mixture eventually gets burned inside the cylinders therefore nothing gets stuck inside.
The intake valves, fuel injectors and throttle body constantly give fuel to the cylinders and they can be built up with carbon overtime. This carbon build-up can then start to interfere with the fuel air mixture delivery which can cause problems with the engine. The intake valves, fuel injectors and throttle body directly affect the combustion process and it affects how your vehicle drives.