Q: How Do I Keep the Fuel System Clean?

asked by on November 23, 2015

How do I keep the fuel system clean?

Ideally, you shouldn’t have to do anything to your car to keep the fuel system clean. However, our cars don’t live in an ideal world.

Probably the most common effect of burning gasoline in our engines is the buildup of carbon deposits on the back side of intake valves and inside the combustion chambers of the engine.

There are a number of detergents that you can purchase from your local auto parts store that you can use as a treatment to help prevent carbon buildup.

If your car exhibits long crank times in the morning, chances are good that you already have some carbon buildup on your intake valves. There are several ways to remove carbon build-up. One is invasive and one is not.

The invasive method of decarbonizing an engine is to disassemble it and clean it with crushed walnut shells in a sand blaster. Expensive and time-consuming. And should only be done by a professional technician.

The non-invasive method is to use a concentrated cleaner that is sprayed into the intake manifold while the engine is running. The cleaner dissolves the carbon buildup which allows the engine to start and run more normally. This method is also performed by a trained technician. It is less costly and way less time consuming.

If you need this type of service done to you car, feel free to reach out to a certified mechanic who can flush your fuel injector to help maintain the life of your fuel system.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

I ran Outta gas and put gas in it and it still won't start

If the car was run completely out of fuel, there is a chance that the fuel pump may have been damaged. The fuel pump relies on the fuel in the tank to keep it cool, lubricated and functioning properly. In...

My car ran out of gas and now it will not start even after putting gas in the tank

If the starter motor itself is not functioning (i.e., no engine cranking), then the starter circuit has to be diagnosed. If the starter motor is functioning, but the car is not starting, you could have a circumstance where the fuel...

My car will not start what's wrong with it??

You will need to see if you are loosing fuel pressure due to a bad fuel pump or you are loosing spark due to a bad sensor or coil pack. The most common cause of no starts is the fuel...

Related articles

How Long Does a Fuel Rail Sensor Last?
The The amount of pressure that is in a car’s fuel system is important and something that is heavily monitored. Without the proper amount of fuel pressure, the gas will not be able to properly circulate. This lack of circulation...
What Prevents the Fuel System From Leaking?
Leaking Leaking fuel is a hazardous and wasteful problem for a vehicle to have. Manufacturers know this, and to combat the problem they have implemented a number of simple ways to prevent fuel from leaking out of the fuel system:...
Fuel Economy Myths
Drivers will try anything to get better gas mileage. Topping off your gas tank, ignoring tire pressure, and using premium gas won't improve your MPG.