Car's Fuel Filter

A fuel filter is also an essential part of your vehicle for better performance. Fuel filters need to be maintained at regular intervals. They protect your fuel injectors, your engine and your car in general. What is the fuel filter? Where is it located? And what are the signs of its failure?

What is your fuel filter?

Your vehicle runs using gas from your fuel tank. But over time the fuel filter may become clogged with contaminants and cause a restriction in the fuel flow, which can affect the performance of your engine. That’s why the fuel filters are designed to catch these contaminants in the gas before they enter your engine. Most newer cars come with a simple fuel strainer, that is replaced only with the full fuel assembly.

Where is the fuel filter located?

The fuel filter is located between your fuel tank and the engine. Either you can find it inside the fuel tank (in the opening of the fuel line, which feeds gas to your car), or somewhere in the fuel line (this is usually at the bottom of your car.) Check your vehicle’s manual for more info on the fuel filter location.

When should I change my fuel filter?

As we mentioned above, over time the fuel filter can become clogged, which may impact your car’s performance, allowing the dirt to enter into the fuel injector, which may stop the fuel flow.
It is recommended to change the fuel filter on an older car at least every two years or 30,000 miles. On newer models, this interval can be longer. The best way to tell if your fuel filter needs replacing is to have a mechanic do a fuel pressure test. This lets the mechanic know how much PSI the fuel pump is generating at the fuel rail, with a faulty fuel filter reducing the pressure produced. The normal amount of pressure for a fuel-injected vehicle runs around 30 to 60 PSI.
A bad fuel filter can be very bad for your engine and its components. A professional mechanic will be able to replace your fuel filter without a problem.


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