Every motorist sooner or later faces the moment when a car fuel filter needs to be replaced. The fuel filter is a part that is able to purify gasoline before it enters the engine cylinders. The cleaner the gasoline gets inside, the longer the engine will be serviceable. Since gas stations do not always fill with clean gasoline or diesel fuel, it can have everything from sand to rust. The filter copes with such elements, and they settle on it. It is impossible to drive with a dirty filter, because over time its throughput drops, power drops or the car does not start. Then the question arises, how often to change the fuel filter.

How often do you need to replace

The recommended period for replacing the fuel filter is the expiration of 30,000 - 50,000 kilometers of driving, since its full operation is approximately enough. This is a kind of regulation. Also, the duration of the period depends on gas stations and driving style. Usually, if the engine starts to triple or stall, this can be taken as a signal that it is time to change the filter elements. This also corresponds to a drop in power, increased fuel consumption and if the car does not start.

You can not let the car run on a clogged fuel filter, because in the worst case, you will have to learn not only how to change the fuel filter, but also to flush the engine, which will cost a lot of money. It is also important to understand that the declared mileage before filter replacement is indicated by manufacturers who have better road cleanliness. In our realities, when asked how much to change the fuel filter, experts believe that the figure for replacement can be 20 - 25,000 km, and for diesel filters about 10,000. It is important to know how to replace the fuel filter in order to do the work yourself.

Features of filters and their location

Purification of gasoline has two or more degrees of purification. The first degree accounts for large particles that enter the tank with fuel. Smaller particles are already going to the fine filters, and they are located directly in the line between the tank and the engine. The location in each car is different, but most often it is located directly in the fuel tank itself.

The gasoline filter has differences in its design. On vehicles, they are installed depending on the fuel injection systems. Systems can be divided into 3 types:

• Injector.;
• Diesel.

Filters are divided into:

• Prefabricated - only the filtration element changes;
• Not collapsible - requires a complete replacement of the entire fuel filter.

Non-removable filter

You can find out the location of the fuel filter for a specific model in the instruction manual. Basically, diesel filters are located under the hood. For an injection car, as a rule, when the filter is not collapsible, you need to look under the bottom of the car or the back seat. If collapsible, then in the fuel pump and all the work is to replace the grid on the fuel pump.

Precautionary measures

Since any spark can cause a fire, it is better to follow basic safety precautions. Do not be near the filter with a cigarette. It's always best to have a fire extinguisher near you. It is best to do everything in a well-ventilated area, or on the street. When the fuel filter change is finished, wash your hands to remove any remaining fuel using soap and water. It is better to use goggles to protect your eyes.

Work procedure

In order to successfully replace the fuel filter with your own hands, you will need to have a set of keys. Specifically, we need keys for nuts 10, 17, 19. Before starting work, you need to disconnect the mass from the car so that a short circuit does not occur. Next, a working filter is clamped with a 17 or 19 key and the fitting is unscrewed with a 10 key. It is important that the fuel does not get into the organ of vision. All remaining fuel is drained into a plastic container. 10 with a key, you need to unscrew the fitting, which is located at the fuel pump on the other side. To do this, the clamp is slightly loosened, after which you can begin to unscrew it. You need to know in which direction to unscrew it, which is written in the instructions for the part. Most often, the direction of fuel movement is indicated by an indicator that is applied to the body. When the dismantling is completed, you can begin installing a new gasoline fuel filter. Installation is carried out in the same order, only in reverse. It will be better for the filter to install a new fixing clamp. This will increase the life of the part.

In order not to spill fuel, it will be better to release the pressure. To do this, press the ramp spool. Another option is to remove the fuse when the car is started and leave the engine running until it stops.

After the installation is completed, you need to check how the new device behaves when the engine is started. Make sure there are no fuel leaks. If any are found, then the problem is probably in the rubber rings, they need to be replaced. It is better to do it right away, because later you will still have to return to this. On this, the work on replacing the filter can be considered completed.

Diesel filter replacement

To carry out work, you must have:

• Vacuum pump of manual type;
• Fuel tanks;
• Fuel filter cartridge;
• Sealing ring on the filter cover;
• Water tanks.

In general, the replacement of the fuel filter on a diesel engine follows a similar scenario, but with some nuances:

• To begin with, the ignition in the car is turned off;
• It is necessary to unscrew the cartridge from below, having previously installed a container under it. After completing the collection of fuel, you need to wipe the cartridge well from fuel residues;
• To remove the filter shell, you need to unscrew the bolts and remove the fasteners;
• Fuel hoses are disconnected;
• The filter housing is removed.

Before installing the cartridge, you need to remove the water that is present inside the filter. This is where a vacuum pump is needed. Next, a tube is inserted that will suck directly to the filter housing. After that, you need to make sure that the filter is clean, and then you can already insert the cartridge.

The body is closed with a lid, which sits on a new sealing ring. The ignition turns on for two seconds, but the engine should not start. This is necessary to activate the pump, which pumps fuel, to fill the filter with fuel and remove air that may have formed in the fuel system, in the case of a replaced filter. If fuel forms on rubber parts, it must be wiped off. This completes the replacement of the diesel engine fuel filter.

Conclusion

In order to avoid problems with the fuel system, it is necessary to observe the frequency of replacing the fuel filter, then the likelihood of engine breakdown will be excluded. If the car does not start well, then the filter is the first thing you need to pay attention to when it has not been changed for a long time. An experienced driver can always figure out when to change the fuel filter.

If you have any questions - leave them in the comments below the article. We or our visitors will be happy to answer them.

Hello dear friends! How nice to see you here and to understand that we are not working in vain, you like our articles. It's especially nice to read the comments and answer your questions.

Today I propose to continue the subject of consumables and talk about the fuel filter. Many underestimate the importance of this device, but in vain. The performance, serviceability and technical characteristics of the car largely depend on it.

The device can be located on the fuel line between the tank and the pump, or be submersible - this is a fuel tank filter. In general, it should be understood that gasoline is not the cleanest substance. The usual mesh, through which the poured fuel passes, cannot collect all the garbage, but is intended only for large particles.

To prevent debris and moisture from reaching the fuel pump and engine, so that water does not accumulate in the fuel system and the car works like a clock, you need to regularly monitor the condition of the fuel filter. Fuel cleaning ensures the optimum quality of the air-fuel mixture, and therefore the engine operates in ideal conditions for it.

Why is it needed

There is a coarse filter that comes first from the gas tank. After all, first the lid opens, where the fuel tank is located, the gun is inserted there, the magic button is pressed and the fuel flows. Yes, along the way it takes a lot of your money, but what can you do. The location of the tank can be left and right, but this does not play a special role. Coarse cleaning, which is a mesh that traps large particles of debris.

Then comes the fine filter. It is about him that we will talk. Such an element is called a fuel filter. It traps small particles. But even they can get into your diesel engine or gasoline injector.

Dust, dirt, debris, rust elements. All this can penetrate into the system, which causes a clogged pipe, tube, valve, fuel hose, fuel pump components. Nothing good will come of this if timely replacement is not made.

To understand how to replace the filter, which element to choose and how to choose an analogue for the device that you are going to change, you need to have at least elementary ideas about such an important component of the car.

I suggest you start with varieties.

Kinds

Modern fuel filters installed on Ford Focus, Nissan Almera, Hyundai Solaris, Nexia, Mazda, Opel, BMW e60, Renault Logan and Megan, Kia Rio and many others have at least two degrees of purification.

• First degree. This is a rough cleansing that allows you to get rid of large contaminants. Not to be confused with the usual grid in the tank, which is not available everywhere.
• Second degree. Fine cleaning. This is the main task that falls on the shoulders of the filter.

And here you probably have the main question - where is the filtering device? I don't know. No, I can answer, but if you tell me specifically what brand of your car or what year of manufacture. Indeed, on the same Niva Chevrolet, different models of Opel, Toyota, Mazda, on the Volkswagen Passat B3, as well as on domestic VAZ 2114, 2112 and 2110, the location may differ.

However, they are always located somewhere between the engine and the gas tank, since the filter's job is to prevent contaminants from entering the engine while the fuel moves from the tank to the engine. What's in the gas tank itself? That's right, a coarse cleaning device. This is an additional filter element so that all sorts of unscrupulous gas stations do not spoil your car for you.

Now for the types of filters themselves. What element will be on the car? It depends on the type of engine. There are three of them, as you know. Except for electric motors. Well, there is no need for a fuel filter, as you understand.

Therefore, there are three types of filters:

• carburetor;
• diesel;
• injection.

Location

So you bought yourself a brand new sedan and you think that it would be time to change the filter for this engine. Do you want to choose the best one? Well then, take a closer look at Cummins devices (Cummins). Mann, Hertz. They have proven themselves well, and they cost quite a bit.

You probably know if you have a diesel engine, injection or carburetor. This is important in order to understand the location of the fine filter, that is, our today's hero.

1. Carburetor. In these engines, the TF (fuel filter) is placed in front of the carburetor itself, and is often in a transparent case to control contamination. These are the most elementary devices, because the carburetor is the least demanding on the quality of fuel.
2. Injector. Nozzles are used here, and therefore high-quality filtration is required. Yes, and the fuel is supplied under high pressure. Therefore, the filters are enclosed in durable metal cases. TF has to be regularly serviced, cleaned and monitored for its condition. They are placed mainly under the bottom of the car to make it easier to dismantle and change.
3. Diesel. The diesel engine also needs high-quality purified fuel, since the system is quite sensitive. Diesel fuel has a higher moisture content than gasoline composition. TF is designed to filter debris and remove accumulated moisture. For this, a separator is provided. The location is quite simple - between the engine and the pump that pumps fuel.

Any fuel system must necessarily include TF. They are changed as an assembly, that is, it makes no sense to remove the filter elements themselves (usually this is special paper), leaving plastic or metal. Be sure to look at the number and article of the filter that is installed on your machine, refer to the instruction manual from the factory. This is the only source of truthful information regarding the maintenance of your particular vehicle in this configuration and with this type of engine.

When it's time to change

You can buy yourself a new TF literally as soon as you bought a car from the salon or took it from your hands. But after how much can or should it be changed?

If you change the TF on a used car as soon as you renew it, nothing bad will happen. It is not known what kind of filter was there before and how many kilometers it has already dashed off and how long ago the previous owner changed it.

The frequency of TF replacement can vary significantly depending on a number of factors:

• vehicle condition;
• driving style;
• terms of Use;
• operation of the fuel system;
• the quality of the repairs carried out regarding the engine and fuel system;
• the quality of the gas stations where the previous owner of the used car refueled;
• engine's type;
• motor power, etc.

Only a specific user manual can answer you. And how often the TF changes depends on you specifically.

In general, I’ll tell you, many people think that TFs are changed every 30 thousand kilometers on diesel cars, and from 60 to 100 thousand kilometers on gasoline cars. And some automakers even say that the filter installed from the factory will last as long as the car itself.

Alas, these numbers are far from the truth. Why? Everything is simple. The ideal operating condition is taken into account here. That is, smooth roads, high-quality fuel, measured driving style and so on. Which of these do you have? Personally, I have problems on all counts, since it is impossible to drive on our roads in this way, even with a strong desire.

Because the realities are such that diesel filters are changed every 10-30 thousand kilometers, and gasoline filters - 20-60 thousand. Yes, there are exceptions when the car is rarely used, the driver is extremely careful and refuels at the best gas stations. Here the filter can really serve all 50-100, or even more than thousands of kilometers.

I'll give you one far from the worst advice. Consider the mileage and compare with the operating conditions of the car. So you will understand exactly how often you should change the TF.

The automobile is such an advanced invention that it will give indications that it needs to be replaced.

The machine says "It's time!"

There is a fuel gauge, engine temperature indicators, exhaust system, gas pedal responsiveness and other sources of information about the condition of the filtering device.

When the car talks about the problems that have arisen, the driver immediately changes consumables. After replacement, everything returns to its previous state and so on until the next service.

When to change? Then, when the car issues the following:

• the engine runs unevenly, failures are felt;
• when you press the gas pedal, there is a loss of power;
• grows sharply under normal operating conditions;
• smoke coming out of the exhaust pipe;
• symptoms are progressive.

Before changing the TF, be sure to look at the instruction manual, watch the video and determine exactly where the filter device is in your case.

In fact, replacing the filter with your own hands is not a problem in most machines. Although some removal requires the help of specialists. I don’t know why, it’s a mystery to me, but some automakers put filters in such deep and hard-to-reach places that it’s amazing. Apparently, this is specifically for you to contact a specialized car service. I can't find any other explanations for where the TF stands.

Another important issue is the price. How much do you think TF costs? A little. It makes no sense to buy some super expensive filter for an inexpensive car. There are recommendations regarding the characteristics of the filter provided by the factory. Follow them. You can even compare the filter by photo and find yourself exactly the same if the previous one worked perfectly, but its resource has already dried up.

I hope the article was useful and accessible. Write your comments, leave feedback and ask questions. We will answer them.

The fuel line is in the form of a cartridge and contains a special filter paper. The fuel filter can be found in most internal combustion engines.

Why is a fuel filter needed?

If the fuel that is poured into the car is not of the best quality, then it is likely that it contains a lot of all kinds of impurities. Paint, dirt and rust can cause rapid wear and failure of the fuel pump and injectors. It is the abrasive action of these particles that is detrimental to high-precision components of the injection system. The quality of the fuel used also affects how many fuel filters are installed in the car. For example, manufacturers usually equip gasoline engines with one filter, while diesel engines - with two.

Varieties of fuel filters depending on the type of engine

Before talking about how the fuel filter works, you need to figure out what type of engine is installed on your car.

• The carburetor engine is characterized by low pressure in the fuel system. Fuel passes through rubber hoses. The fuel filter in such engines is usually made of metal or plastic. On one side is the inlet pipe, and on the other - the outlet. The hose is connected to the filter with round clamps at both ends.
• The injection engine is distinguished by electronic fuel injection into each of the cylinders. The fuel in this case is under high pressure. For this reason, the fuel lines are made of metal, and the fuel filter is made of steel or other light alloy metals and, as a rule, is equipped with a threaded connection.
• Diesel fuel must be cleaned in the best possible way from various impurities. Paraffins are also a danger, which can turn into crystals and clog gaps between parts as small as 6 micrometers. For this reason, along with the main fuel filter, it is recommended to install an additional one on the diesel engine. Such a tandem will allow you to 100% clean the fuel from water and 96% from dirt.

How the fuel filter works

Some vehicles have two types of fuel filters installed at once. One of them is designed for coarse cleaning, the other for fine cleaning.

• The coarse filter has a mesh element, which consists of a reflector and a brass mesh that does not allow particles larger than 0.1 mm to pass through. This type of filter is designed to purify fuel from various large impurities. The filter element is placed inside the glass, which is fixed to the body with a pressure ring and bolts. The gap between the glass and the body is closed with a paronite gasket. At the very bottom of this glass is a special pacifier.
• The fine filter is the second barrier to removing debris from the fuel. It can usually be found in the fuel tank as well. As a rule, such a filter is wrapped in a nylon case, which immediately shows the degree of contamination. Such a device is capable of retaining particles up to 15 micrometers in size, thanks to two parallel filter elements.

Signs of a clogged fuel filter:

1. Car jerks when going uphill.
2. The power has dropped noticeably.
3. The engine stalls.
4. High fuel consumption.
5. Car jerks while driving.

Where is the fuel filter located?

If you plan to change the fuel filter yourself, then you need to know where it is located. In modern cars, this part can be found in one of the following places:

1. under the bottom of the car
2. in the fuel tank
3. in the engine compartment.

The fuel filter can be changed without resorting to the services of professionals, however, if you doubt your abilities, it is better to ask for help from more experienced drivers. Experts recommend changing the fuel filter every 30,000 kilometers. However, if you fill in low quality fuel, then you need to do this more often.

How to change the fuel filter?

Before changing the fuel filter, it is necessary to prepare at least a minimum set of tools, such as:

• flashlight,
• wrench,
• screwdriver,
• pliers,
• socket wrench,
• protective glasses,
• disposable gloves.

In most cases, such a set of tools can be completely dispensed with, however, there are cars that require special tools in the fuel filter. For this reason, before the procedure, try to find as much information as possible on replacing the fuel filter in your car model. You will also need a new fuel filter. When buying it, inform the seller of the car, as well as the year of its manufacture. Give preference to original spare parts. Fuel filter manufacturers such as ACDelco, Motorcraft and Fram are well established in the market today.

• Change the fuel filter outdoors, as fuel fumes can build up indoors and cause a fire.
• Have a fire extinguisher ready before you start, just in case.
• Do not smoke or change the fuel filter near an open flame.
• If there is high pressure in the fuel system, then it must be reduced before replacing it.
• Disconnect the battery to prevent sparks.

We change the fuel filter on Lada Kalina

Fuel filters are not the same. For this reason, the algorithm for replacing them will also be different. As an example, we chose a fairly common car - Lada Kalina.

1. To begin with, the pressure in the fuel system must be reduced. To do this, remove the fuel pump fuse - near the gear lever, remove the plastic cover with a screwdriver, you only need to remove the central fuse box.
2. We start the engine and wait until it stalls, it will take no more than a minute.
3. Now we move to the rear wheel, where the fuel filter is. It can be found on the right, next to the fuel tank.
4. We press the clamps and unfasten the fuel hoses.
5. We take out the old filter.
6. When installing a new filter, make sure that the arrow on it coincides with the direction of fuel flow.

After completing the installation of a new fuel filter, it is necessary to screw the fuse and start the car. From the first time the engine will not work, it will be necessary to wait until the pressure in the fuel system stabilizes.

The petrol filter is an integral part of the vehicle's fuel system. Today we will tell you where the element is located, how often the fuel filter is replaced, and what symptoms and signs indicate its failure.

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Description

The purpose of the fuel filter (TF) is to filter out dust particles and contaminants, preventing them from entering the engine fuel system. In the absence of a cleaning element in the system, dust and other harmful components clog and disable the fuel system.

Sectional fuel filter: 1 - filter element for injection cars, 2 - its body

The filtration process consists of two or more stages of purification (depending on the structure of the filter and its production). The first degree is called coarse, because it manages to weed out large particles of dirt that got into the gas tank along with the fuel. The second is a fine filter, which is located somewhere between the gas tank and the vehicle's engine (this "somewhere" can be located in different places, depending on the car).

Filters differ in their design. They are installed based on the type of fuel system. There are three types:

• carburetor;
• injection;
• diesel.

The specificity of diesel filters is that the type of such a motor is very vulnerable, so the fuel for the systems must be as purified as possible. In this case, the car's fuel goes through three stages of purification - in the gas tank, and then coarse and fine cleaning. The purpose is to prevent water from entering the combustion chamber. Given these factors, it becomes clear why a high-quality TF for a diesel car costs an order of magnitude more expensive than a cleaning element for a gasoline engine.

Diesel TF: 1 - diesel, 2 - pump emulsion, 3 - cleaning from dirt, 4 - clean fuel with condensate residues, 5 - hydrophobic material, 6 - moisture sump

By design, filters can be of two types: prefabricated and non-separable. If a non-separable gasoline cleaning component is installed in the car, then if it is unsuitable, the fuel filter is completely replaced. Prefabricated TFs do not require a complete change - it is enough to replace the filter element.

Remember: a well-chosen TF specifically for a car model will save fuel and increase the frequency of its replacement. If the component replacement process is not timely, the consequences for the fuel system can be deplorable.

If you do not know where the fuel filter is located and what is the frequency of its change, read the instruction manual. We can say that in most diesel and carburetor cars, the filter is located in the engine compartment. Gasoline cleaning components in injection cars are located under the bottom of the car (if the filter is not collapsible), or under the rear seat. In this case, the TF is located directly in the fuel pump and its replacement consists in replacing the fuel pump grid.

Injection fuel filters are not subject to corrosion, as they are made of aluminum alloys or plastics.

Collapsible TF

How often should you change

If you don’t know when to change the filter and how long the car will drive on it, then only the instruction manual or the recommendations of an authorized dealer will help. In any case, it all depends solely on the transport and the conditions of its operation.

Given the dustiness of domestic roads and the far from the best quality of gasoline, at least 10 thousand km must be subtracted from the interval indicated in the manual. That is, if the frequency of replacing a clogged filter in the instructions for the car is every 40 thousand kilometers, then it needs to be changed every 30 thousand km.

Masters at service stations advise changing the fuel filter every 20-25 thousand kilometers, no matter how much the manufacturer recommends.

If the frequency of changing the cleaning element was not respected or it is heavily clogged, then the engine may not start at all. Certain symptoms of a breakdown, manifested through a high mileage of a car on a clogged TF, may indicate the failure of a component.

The following are symptoms and signs that gasoline is not passing through the fuel filter:

• uneven operation of the engine (machine "troit");
• from time to time the car loses power during the period of movement;
• when driving at low speeds, when the pedal is pressed, the car stalls, no matter how much it is “drowned” to the floor;
• incorrect gear shifting (in the case of an “automatic” gearbox: it incorrectly transmits engine commands for gear shifting and does not execute them on time);
• increased fuel consumption.

Symptoms indicate the process of filter failure. If they do not appear, you will find out about the malfunction of the cleaning component when the car does not start in the morning.

Replacement process

Without the experience or knowledge of replacing a part, you will harm the auto system. Installing a fuel filter is a relatively simple process, following the steps in the instructions, a novice motorist can handle it.

What to cook?

If the component is located under the bottom of the car, you will need to drive into the pit. Before removing it, prepare:

• a new cleaning element (buy those filters that are made by the car manufacturer, or that it advises to install);
• set of wrenches;
• slotted and Phillips screwdriver;
• rag.

Let's start replacing

The instructions describe the process of changing a non-separable fuel filter for any car. Depending on the design features of the transport, there may be some differences in the process. If an element assembled with a fuel pump is installed in the car, we advise you to read the recommendations from the manufacturer. Companies advise changing the filter along with the fuel pump.

1. Decide on the location of the TF. In diesel and carburetor cars, the part is located in the engine compartment, either under the bottom or in a tank with a gasoline pump (in gasoline cars).
2. Regardless of location, remove the fuel pump fuse and wait until the vehicle stalls. This is done to relieve pressure in the system.
3. Now, to prevent fire during the replacement process, remove the negative battery terminal.
4. Install the new component in the same position in which the old one was installed (the arrow on the filter showing the directions of gasoline will help).
5. Connect the gas line, having previously checked the integrity of the pipe. If the nozzle is damaged, replace.
6. Now it remains to replace the fuel pump fuse and connect the battery terminals.
7. Try to start the car. This may not work the first time, because the pressure in the system has been released. Turn the ignition on for 30-60 seconds, then try to start.

Attention! Pay attention to safety! When the fuel filter is being replaced, smoking indoors is prohibited. It is also desirable to ventilate the garage.

Video from Sergey Palamarchuk "How to pump gasoline into the fuel filter and bleed the system"

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Self-replacing a car fuel filter - video

The fuel filter performs an important function in a car. Although gasoline looks clear and clean, it can contain a large amount of any dirt that eventually settles on the bottom of the tank or on the fuel filter.

It is recommended to change the filter after 20-40 thousand kilometers. If you do not do this, then all the dirt can get into the fuel pump, carburetor, settle on the walls of the liners and pistons. Accordingly, you will face a more complex and expensive process of repairing the fuel system and the entire engine.

Each car model comes with detailed instructions, which indicate the location of the filter. It can be located both near the fuel tank and directly under the hood. Before removing a clogged filter, make sure that there is no pressure in the fuel system. For this you need:

• remove the fuel pump fuse;
• start the car and wait until it stops working;
• remove the negative battery terminal.

After that, you can safely proceed to extract the old filter. Usually it is attached with two clamps or special plastic latches. It is attached to the fuel pipes with fittings. Each model has its own fastening features, therefore, when removing the filter, remember how it stood and which tube was screwed to what.

The fuel filters have an arrow indicating which way the fuel should flow. According to her, you need to install a new filter. Figure out which tube comes from the tank, and which one leads to the fuel pump and to the engine. In modern models, the auto filter simply will not fall into place if it is not installed correctly.

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Included with the filter should be plastic latches or clamps. Feel free to throw away the old ones, because they weaken over time. Insert fuel pipe fittings and tighten all nuts well. When the filter is in place, put back the pump fuse and put the negative terminal back in place.

If the engine does not start the first time - it does not matter, this is a common occurrence after depressurizing the fuel system. It will definitely start after a few attempts. Check the integrity of the fasteners and for leaks. Do not forget to wipe everything well and remove all rags and gloves soaked with fuel.

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