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Pete, Technician
Category: Car
Satisfied Customers: 24140
Experience:  17 years automotive training and experience.
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Fuel injectors slowly over time become less efficient but still work?

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can fuel injectors slowly over time become less efficient but still work?
Hello,I will be glad to try and assist you with this,Welcome to Just Answer.


Yes,over time and mileage it is common for fuel injectors to become less efficient as they can become restricted due to fuel contaminants and additives.

In some cases this can cause rough running or misfires and in others just poor engine performance.

Most of the time this can be corrected by having a shop run their injector clean machine with cleaner on them and in some cases even adding fuel injector cleaner to the fuel tank,this is best done at 1/4 tank or less and run to near empty and repeat if necessary.

I have also had to replace some injectors that didn't clean up as well.

Let me know if you need anything else,click accept if you feel satisfied with your answer as this is how I get credited for my time,Thanks Pete!
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