4 Symptoms of a Faulty Fuel Filter

The fuel filter is explicitly designed to filter out impurities in fuel before it enters the engine. High pressure fuel-injected systems with gas or diesel fuel might contain flecks or additives that can find their way into the system. Even mechanics will sometimes spend hours trying to figure engine issues, overlooking the fuel filters as the primary cause.

This tells you why the filter should always be in pristine condition. Over time, however, the fuel filter can get dirty and become clogged with particulate matter. As a result, your car engine may get damaged and cause problems that will need automotive repair services. Since prevention is the more affordable option, maintaining your filter regularly is essential. But in some cases, you might not catch these issues before they snowball. So how do you know you need a replacement fuel filter? Keep reading to learn more.

How a Fuel Filter Functions

The filter system works by pumping fuel into the engine and filter out particulates. It’s made of a unique fabric that blocks out dirt and other additives while allowing fuel to pass through. Undoubtedly, fuel is already refined, but it can absorb impurities and dirt during storage and transportation. Besides, your vehicle’s tank often picks particulates that can be harmful to the engine. The fuel filter serves as a defensive barrier that keeps impurities out. But when it isn’t functioning properly, you can run into issues.

4 Symptoms of a Faulty Fuel Filter

Below, we present a list of symptoms and signs that indicate the filter need cleaning or replacement.

  1. Major Drop in Engine Power
    When your car’s engine is no longer powerful as it used to be, then this is a clear sign of a faulty filter. One of the best ways to notice a drop in engine power is by driving uphill. When you feel the vehicle isn’t responding as before, then it’s time to have the filter checked. The decrease in engine power happens when the fuel supply cannot meet the engine demand due to dirty and clogged fuel filter. A decrease in power is more evident when you have to push the car up. Although a drop in engine power might mean something else, it’s advisable to have the filter checked to clear doubt. And in case of any issue, it can get fixed before it causes a severe problem.
  2. Engine Misfires Randomly
    When a car is going uphill or carrying a heavier load, it will need a large supply of fuel. If getting additional oil becomes problematic, there are higher chances that the fuel filter is clogged. Due to inadequate fuel supply, the engine will keep dying and starting back up. A random engine misfire is a severe issue. It requires special attention from a professional to solve the problem as soon as possible.
  3. Engine Fails to Start
    The engine may fail to start due to a bad starter, an issue with a spark plug, a broken ATV fuel pump, or a dead battery. Besides these causes, you need to know that clogged fuel filter can also lead to this issue or even damage your engine. Therefore, if your engine won’t start, then you need to invest in a new jet ski fuel filter.
  4. The Fuel Pump is Broken
    A clogged filter, for example, can damage your snowmobile fuel pump. A faulty filter can put extreme pressure on the pump and hinder the fuel from flowing to the engine. Thus, the pump will suffer in the process. If the fuel pump is broken or damaged, you may also want to take a closer look at the fuel filter.

How Do You Prevent This Problem?

According to ISMA, the number of registered snowmobiles in the US is over 1.2 million. These snowmobiles come with a manual from the manufacturers. The provided information gives you details about cleaning and changing filters. If the manual recommends you replace the filter within a specified period, then do so.

Another great option is to invest in a quality brand. Walbro and Quantum are some of the most reliable and cost-effective fuel filters in the market. They are readily available and are built to last.

When you notice any of the above signs, it means it’s time to clean or replace your fuel filter. In case you’re not handy in examining the state of the filter, then seek help from a professional mechanic.


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