How to Clean Fuel Injectors


Fuel injectors play a very huge role in the smooth flow and high performance of vehicles. When dirty, they can lead to clogging, which actually cause different kinds of engine problems. Some of these problems include dirty emissions, subpar performance as well as significant drop in fuel economy. Be able to enjoy superior emission performance, fuel efficiency and power output by learning how to clean fuel injectors.

Materials Needed

This moderately challenging job requires the use of a fuel injector cleaning kit. With this at hand, you can start cleaning your very own fuel injectors by following these simple steps. This task is actually an easy one to do and can save you lots of money, instead of paying for professional services.


While the engine is turned off, start this task by opening the engine compartment. After that, find the location of the fuel injectors. For those who are unfamiliar about the different aspects of vehicle engines, do not be shy to ask for help from people who are knowledgeable in this field. Likewise, be sure that no amount of fuel is pumped right into the engine before doing this particular job. To do this, simply remove the fuel pump, which in turn will stop fuel return. Another alternative is to install tubing, the purpose of which is to connect the fuel inlet with the fuel outlet.

Get a pressurized solvent and then hook it up to the fuel injectors. Turn the engine on. Run the solvent right through the running engine. After that, turn off the engine and then take out the cleaning supplies. After these important steps, reconnect the fuel pump as well as the fuel lines. Turn the engine on once again and check if the performance of your engine improved. In case there is no improvement, repeat the previous steps. In case there is really no noticeable results, uninstall the fuel injectors and then prepare them for some off-car cleaning.

If you wish to have your injectors for some off-car cleaning, bring your automobile to certified mechanics. It is good to seek the help of professionals particularly for this kind of situation. These experts can get the job done in about an hour or less. In terms of prices, this kind of service should cost somewhere around $30 to $50.

Additional Tips and Other Helpful Information

If you wish to do this job on your own, it is best to wear safety gears such as goggles for the eyes and protective gloves for the hands. The solvents used in this task can be acidic, which is a serious cause of concern especially when handled improperly. When handling the pressurized fuel lines, extreme caution is important while disconnecting. Work away from sparks and open flames because the solvent used for this project is highly flammable.