What is a fuel filter?
A fuel filter is an important piece of the fuel system that protects your engine from debris. It screens dirt and debris coming from the fuel tank, preventing them from entering the vehicle’s engine and causing damage. Small particles and debris entering the engine cause unnecessary wear and tear, damaging the entire system. A clogged fuel filter can also reduce the amount of fuel that reaches your engine—and without enough fuel, your vehicle won’t function properly.
The fuel injection systems of most newer vehicles have limited tolerance and are easily clogged, so any contamination from the fuel can be problematic—that’s why it’s crucial to replace your fuel filter regularly.
There are two main types of filters: plastic/metal or a cartridge with a replaceable filter. Both work the same way to filter out contaminants as they pass through. Regardless of which you have, the filters are meant to be replaced with a new fuel filter, not serviced.
How do I know if my fuel filter needs replacing?
The most common symptoms that indicate a clogged or bad fuel filter include:
Random engine misfire or rough idle
Fuel system part failures
If you’re following a regular maintenance schedule
, have your mechanic check your fuel filter when they perform a service. How often should you change your fuel filter?
Your car’s manufacturer specifications should outline how often you should change your fuel filter. In general, it’s recommended to change your car’s fuel filter every two years or 30,000 miles, whichever comes first.
If you frequently drive on unpaved roads or through construction areas with large amounts of dust and debris, you may need to change your fuel filter more often.
Can I replace the fuel filter myself?
If you’re in for a simple DIY project and know your way around a car, replacing your fuel filter is an easy task that can be done relatively quickly. But if you’re not confident in your automotive DIY skills, call your local auto body shop and leave the fuel filter replacement to a professional.