Fuel filters are an essential part of a car. It helps to purify the fuel and clear out the dirt and rust particles from it as well. But this vital component of a vehicle can cause problems in some cases.
You may ask whether a fuel filter can cause a misfire. Let us help you find the answer you are looking for and provide you with some necessary information regarding this issue.
Can a fuel filter cause a misfire?
A fuel filter can cause a misfire. A fuel filter helps clean the fuel provided to the engine. But when this is not working correctly, the engine of the vehicle will not receive the necessary amount of fuel to work. Thus, the engine will start to cause a misfire, which can become a problem.
Table of Contents
Fuel filters play an important role in providing clean fuel to a vehicle’s engine. It helps to run the engine properly by filtering all dirt and rust particles from the fuel. Thus, the fuel filter works as a mechanism for fuel purification.
But while filtering these particles, the fuel filter becomes exposed to getting damaged over the course of time.
As the filter collects these particles from the fuel, it has to store these unwanted particles somewhere in it or dispose of them outside the component. The component keeps the unnecessary particles in it. Thus, this component loses its working ability over time.
When the component loses its ability to work, it affects a vehicle’s engine. Thus, the engine does a random misfire due to the lack of fuel due to its malfunction. This causes the engine to cause cylinder misfire and eventually may even cause permanent damage to the engine.
Whenever there is a misfire in a vehicle engine due to a fuel filter, there are multiple fuel filter issues that can cause this problem. Here are some common scenarios that we think are responsible for this issue:
Bad fuel filter:
A bad fuel filter is a common reason for a misfire. This causes a lack of fuel reaching the engine due to leakage or improper filtering. Thus, the engine will misfire due to the lack of fuel supply or improper fuel purification.
Dirty and clogged fuel filter:
A dirty and clogged fuel filter is a big reason behind a fuel filter-related misfire. This caused the fuel filter to get blocked. Thus, the supply of fuel to the engine gets cut out and the engine starts to make misfires due to this reason.
Old fuel filter:
An old fuel filter is a reason behind fuel filter-related misfire. Old vehicles are widely seen causing misfires in the engine. The reason behind it can be the fuel filter getting old.
How does a fuel filter cause a misfire?
Fuel filters are an essential part of a vehicle. It is a part of the fuel supply system of a vehicle too. If the fuel filter is somehow not working correctly, it can cause a misfire. There are multiple reasons behind a misfire due to a fuel filter.
The most obvious reason behind a misfire due to a fuel filter is that it does not supply the necessary amount of fuel to the engine. Lean fuel conditions can cause a misfire in the engine cylinders. This can cause the engine to choke or stall while driving.
Misfires in the engine can cause problems while driving. It causes the engine to stop at random. This may cause a bad driving experience and lousy fuel economy as well.
What are the symptoms of a bad fuel filter?
There are multiple symptoms of a bad fuel filter. Here are some symptoms that we think are noteworthy for you to know:
Engine stalls are a common indicator of a bad fuel filter. Due to a bad fuel filter, the engine may not receive the necessary amount of fuel to run its operation. Thus the engine will keep stalling periodically.
Trouble in starting the engine:
Bad filters will cause the engine not to receive the necessary amount of fuel required while starting the engine. Thus, you may run from problems related to starting the engine.
You might have to try to start the engine with a few ignitions or perform a manual start.
Engine check light turned on:
Due to a bad filter in the engine, your vehicle will detect that there is a problem with the engine. Thus, it is common to see that your engine will light up the check engine light until you resolve the issue of your engine.
How do you tell if your fuel pump or fuel filter is bad?
It is necessary to know when your fuel pump or fuel filter is bad. There are various ways to understand it. Here are some noteworthy ways to find that your fuel pump or fuel filter is bad:
Your vehicle will stall or choke:
You may find that your vehicle’s engine is stalling or choking while running it or trying to increase its speed of it. This will end us in start engine shutdowns. This is another indication that your fuel pump or fuel filter has gone bad.
The engine will misfire:
Your vehicle’s engine may face random misfires in the engine cylinder. This is caused due to a bad fuel pump or fuel filter causing some kind of blockage in the fuel system.
Fuel pump or fuel filter will create a lot of noise:
You may hear that your fuel filter or the fuel pump is making a lot of sounds. This may be caused due to a blockage in it. Thus, this may indicate that there might be a bad fuel pump or fuel filter in the engine.
What happens if you drive with a bad fuel filter?
Various things happen while you drive with a bad fuel filter. Here are some incidents that you should know that happen if you drive with a bad fuel filter:
While driving with a bad fuel filter, you may face stalls in the engine. Therefore, your engine will turn off for a short time and may or may not turn on by itself.
Check engine light turning on:
You check engine light will be on for the whole time while you drive with a bad fuel filter. It will not turn off or reset until you change your fuel filter.
Your engine might not give you enough speed while driving. This may be caused by a bad fuel filter while driving. Thus, it may cause poor performance in your engine.
Bad fuel economy:
While driving with a bad fuel filter may burn more furl than expected. This may cause you to spend a lot on fuel expenses for a short drive.
How often to replace a fuel filter?
A fuel filter should be replaced after every 20,000 – 25,000 miles of driving. A fuel filter is an important part of a car. It should be changed after driving a certain distance. As the fuel filters help to filter the fuel that goes in the engine, it gets clogged.
Fuel filters are necessary to be changed after every 50,000 miles of driving. But it is best to change them within 20,000 – 25,000 miles of driving. If you do not replace it within this time frame, you may face problems in your vehicle.
How long does a fuel filter last?
A fuel filter lasts for 2 years. A fuel filter helps to filter the impurity in the fuel. It helps to filter those impurities through the filtration system of the fuel filter. As a result, dirt and rust will start to clog it.
After a specific time, the fuel filter or fuel pump will get clogged. Thus, the fuel filter has to be changed. The general rule is that a fuel filter has to be changed after every two 2 years. But this duration can vary based on the engine and how it is used.
How much does it cost to change a fuel filter?
It costs around 65 – 80$ to change a fuel filter. The price of a replacement fuel filter depends on the engine and the type of fuel filter that was used. It may cost you more or less depending on the quality of the fuel filter that you purchase.
You can reduce your costs by making a DIY fuel filter. But it will not be long-lasting. Moreover, you may have to spend more if you take it to a mechanic. But you can change it by yourself if you have the experience of working with cars.
A fuel filter can cause a misfire. Misfiring due to a fuel filter means that the fuel filter is clogged or bad. A bad or clogged fuel filter can cause the engine to cause various problems. Therefore, you need to change the fuel filter as soon as you find that it is causing misfires.