Skip the auto shop - Our mechanics make house calls

Q: How Do I Keep the Fuel System Clean?

asked by on

How do I keep the fuel system clean?

A: Ideally, you shouldn’t have to do anything ...

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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

Q: Gas tank's fuel pump stops pumping fuel randomly. Both fuel pumps are new, gas tank is clean, and a new fuel filters were installed.

Hello. The first thing to check when you have complete failure of the unit is the power supply. If the wiring going to the pump is loose or has a short somewhere, the power wont be delivered or will be...

Q: Trouble starting on a '96 Toyota

First thing you'd want to do is see if it's flooding out. When it doesn't start, pull a few spark plugs off. If they are covered with gasoline, that means that for some reason it is flooding out. If you...

Q: Low fuel pressure

Hello. If your vehicle is displaying low fuel pressure then it may be possible that there is an issue with the fuel pump. There are instances where a worn out fuel pumps will still operate but provide lower fuel pressure,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...