How often to change the fuel filter. Let's take a look at a separate option. Fuel filter: symptoms of contamination, how and when to change
› When to change fuel filterUnfortunately, domestic diesel fuel does not meet factory standards in the process of declaring power, consumption and resource motor parameters for certain models. This is due to the fact that our gasoline is very often overfilled with various sediments and heavy metals, which leads to accelerated wear of parts of the fuel circuit, and the car engine as well. The function of the fuel filter in this mechanism is very significant, because it, first of all, takes over the entire turnover of low-quality combustible mixtures and, if the source of its work has not yet failed, causes more or less normal fuel filtration before it will penetrate into a closed space intended for burning fuel.
In addition, the efficiency of the fuel filter is closely related to the service life of spark plugs, accelerators and lambda probes, since when it enters the combustion chambers, the fuel untreated by the fuel filter burns out fragmentarily, sagging in parts on cylindrical partitions, pistons and combustion candles, significantly minimizing duration of their service. Further, the burnt out "heavy" mess enters the exhaust gas system through the lambda probe and accelerators, rendering their parts unusable.
Therefore, the fuel filter, to some extent, is the guard that controls the ingress of hazardous ingredients. To avoid such incidental situations, the filter must be replaced regularly.
How often to change the fuel filter is indicated in the manufacturer's recommendations. However, with the overlay of the above, the operating instructions are being revised and must be deducted from those indicated in the manual, for example, 40,000 km. at least 10,000 km., - change the filter every 30,000 km.
Carrying out work on replacing the fuel filter (taking into account the brand of the car) requires some investment, but you should not save on this, because it is directly related to the performance of your car engine, as well as to the fuel outlet device. And the repair of these sections far exceeds the cost of the filter.
When should the fuel filter be changed?
When the fuel filter becomes clogged, in some cases the engine may not run at all.
The result of using a worn fuel filter is obvious. Rapid clogging of nozzles or carburetor mechanism (exposes the engine to uneven operation, excessive fuel consumption and reduced power).
It happens that the owner of the car spends a lot of money on diagnostics, changing all the spare parts one by one, and the consequences are unpleasant - nothing changes in the operation of the engine.
Why do you need to change the fuel filter?
Every automotive structure that comes into contact with fluids needs to be separated from harmful additives. Only this condition determines the uninterrupted operation of fuel filters. Knowing how often to change the fuel filter, you provide quality service to your pet. Filter replacement is the basis of systematic service processes, maintenance of the entire fuel system.
When pouring full-fledged gasoline or other fuel, this tool must be replaced once every two years, or at a fixed mileage, the length of which is indicated in the technical conditions for the model's auto manual. After all, it is he who ensures the elimination of microscopic parts that should not fall into the injection system.
If you use diesel fuel, then the filter must also ensure the absence of water. Timely, when a certain signal sound is triggered on the electrical panel, it is necessary to remove water from the filter, which eventually appears in the fuel tank from condensation or is often poured along with fuel at gas stations.
Such an appointment is only possible with modern filters, which are based on the feature of separating liquid according to its density.
Filter separators are equipped with a drain device. Therefore, it is very important to know when to change the fuel filter in this system due to the fact that a dirty drain clogs the filter. The electric actuator can also suffer as the pressure gets very high. And if there is a pressure regulator in the engine, the fuel returns to the tank; the engine is not supplied with enough fuel, which slows down the movement of the car.
Where is the fuel filter located?
In earlier models of cars, as usual, it is located under the hood, at the top of the propulsion system. However, in the current variations produced for last years, this part is mounted in a container located next to the fuel pump.
Having understood why to change the fuel filter, you can get to work.
After replacing the filter in the motor, extraneous sounds disappear. The filter must be changed with oil (usually every 10,000 km.). The highest quality filters are usually: knecht male, henst, mann and framm.
Filter replacement instructions:
To complete the work, you need the following items:
Manual cryopump with fuel collection tank. It can be, for example, Klann-Li-75200;
filter cartridge;
Sealing circle of the filter cover;
Container for collecting the condenser located in the filter.
If diesel fuel leaks onto the rubber, it must be wiped off immediately (cooling moisture cords). Otherwise, the fuel gradually wears out the rubber.
Protect environment from waste. It is not necessary to pour out the used oil and dispose of it with household waste.
It is strictly forbidden to smoke near the workplace or use open flames and incandescent things. There is a possibility of a fire. Keep a fire extinguisher handy at all times.
Be sure to ensure adequate ventilation working area. Fuel emissions are highly toxic. There is a risk of getting burned.
First you need to turn off the ignition, then unscrew the fuel filter housing cover with a 27 mm head. Remove the worn fuel cartridge. Keep a rag handy to wipe up spilled fuel from all surfaces.
Installing a new cartridge:
1. Before performing this operation, you need to get rid of the water in the filter housing using a vacuum pump. It is important to keep moisture out of it.
Insert the suction pipe into the filter shell and pump water from the filter into the tank with a hand pump.
2.Clean the filter housing of all dirt and wipe with a dry cloth. We compress the clamps and disconnect the tip of the diverter (fuel line) from the filter. We do the same on the other side. Forcing the resistance of the holder, remove the fuel filter from the car.
3. Insert a new cartridge. Install a new filter in the reverse order of removal so that the arrow on the filter cylinder matches the flow direction of the fuel itself. The ends of the fuel cords must be connected to the filter through the fittings until the latches snap into place.
4. Screw on the surface with a new sealing ring-torque 25-Nm.
5. Turn on the ignition for half a minute without touching the engine. The fuel pump will start, filling the filter and removing all air from the fuel system.
6. Visually inspect the tightness of the fuel system, including at the filter connection areas.
The fuel filter is located in the engine compartment, next to the cryogenic brake booster.
Reduce the pressure in the supply system.
We warn you: in the injection engine supply system, the pressure is 300 kPa (3 kg / cm-2), therefore it is forbidden to plug the fuel-pipe connecting system while the engine is performing its functions or immediately after the stop. The pressure should drop to almost zero.
So, turn on the neutral transmitter and brake the car with the parking brake.
To the left of the dashboard, remove the cover that covers the safety block and relay;
We remove the fuel pump relay from the block;
We start the engine and let it run until it runs out of fuel from the injector rail. The engine should then shut down.
We turn on the starter for 3 seconds until the pressure in the pipeline is balanced.
We install the relay and the cover of the safety block in the inverse order of removal.
Replacing the fuel filter is a problem that every driver must have faced. This element of the car filters out all debris, particles of rust, dust and prevents them from entering the fuel system line. And since the components in it have a very small cross section, the ingress of dirt would quickly render them unusable.
When is it obvious that a fuel filter needs to be replaced?
The filtration system performs two degrees of purification: coarse, removing all large particles, and fine. installed between the engine and the fuel tank. Experts advise replacing filters every 60 thousand kilometers. After all, their clogging leads to very serious consequences, for example, there is an additional load on the fuel pump, and it can fail much faster. Also, clogging causes improper engine operation, because the fuel supply to the system does not work as it should.
Thus, the car starts to troit, stalls, and sometimes it may not start at all, and an incorrect gear shift also occurs (in the case of automatic transmission, i.e., the automation stops correctly interpreting the engine commands for switching and carries them out at the wrong time or does not react at all). But, in order not to bring the situation to such a critical moment, you can check if the fuel filter needs to be replaced. At low speed, sharply press the gas pedal, if the car does not accelerate or there are jerks, then filter replacement is necessary.
How to change the fuel filter - buying a new element
When choosing this element, be sure to pay attention to the following parameters:
- filtering level. If it is insufficient, and large particles nevertheless penetrate into the system along with fuel, this will very quickly lead to engine failure;
- the area of the filter element, as well as the presence of a rubber seal that covers the entrance to the filter itself. If there is none, this part will be very problematic to replace.
Depending on the fuel system, fine filters are divided into:
- carburetor, permissible degree of purification is 15-20 microns (smaller particles will pass into this system, but will not harm the fuel delivery system to the engine);
- injector, finer degree of purification, 5-10 microns (in such systems, the requirements for the maximum size of permissible pollution are higher, i.e. the injector can become clogged from larger particles, so the holes in the filter are smaller);
- diesel engines are capable of retaining not only very small solid particles (less than 5 microns), but also removing moisture, and this is very important for.
When buying, it is important to indicate the make and year of your car to the seller in order to choose the right filter. For the most part, if there was no product specifically for your case, then you can pick up something interchangeable. But there are cases where this is not possible, so check your vehicle manual for this information.
How to replace the fuel filter - instructions for independent
Of course, you can turn to specialists who will replace this part in ten minutes. However, if you want to save a little, then doing such a procedure yourself is quite realistic, and now we will tell you how to change the fuel filter. To do this, you need to decide on its location, most often it is located under the hood, in the upper part of the engine (typical for diesel vehicles), but there are some models in which you can find it in the tank next to the fuel pump (this is a feature of gasoline cars).
Then you should pull the fuse from the fuel pump and wait until the engine stalls, this way you release pressure and save yourself from spilling fuel. Now disconnect the negative terminal of the battery so that there is no fire, and carefully study the method of attaching the old filter to the fuel line (inlet mount and outlet), it can be wing bolts and latches, the main thing to remember is the sequence in which everything was in order to also install and new element. Mark visually and the location of the sealing washers and rubber gaskets.
Now wrap the old filter with a rag to prevent fuel from leaking out, and remove it after removing it from the bracket that supports it in conjunction with the fuel line. Install the new part on the bracket in exactly the same position as the old one was located (sometimes you can find an arrow on the filter on how to insert it into the socket). Using new fasteners (they are included in the kit), connect the fuel line, after checking the integrity of all its lines, if a defect (cracks, kinks) is found, it should be replaced.
It remains to insert the fuel pump fuse back, connect the terminal and start the engine, this does not always work the first time, since the pressure has been released. In the question of how to replace the fuel filter, a lot of attention should be paid to safety. If you smoke, then stop this bad habit at the time of work. Make sure that the area is well ventilated, and do not forget to thoroughly wash the fuel off the skin of your hands. Also, it would not hurt to stock up on a fire extinguisher just in case.
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.
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. Purpose of the fuel filter for diesel engine 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 far from best quality gasoline, at least 10 thousand km must be deducted 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.
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"
Many motorists are interested in how often and how much to change the fuel filter. Everyone understands the importance of this element of car design. This largely depends on the service life. power unit. High-quality work of the filter makes it practically safe to use fuel from domestic gas stations. After all, the quality of gasoline offered to drivers and diesel fuel leaves much to be desired.
The filter element's job is to keep the maximum amount of dirt out of the fuel. That is why the filter life is relatively short. It quickly clogs with various dirt. It is important for the driver to know all the symptoms that indicate the need for replacement.
Types
How often and how often should the fuel filter be changed? It largely depends on the features of the part you have installed. Some of these elements serve for a relatively long time, others need to be changed quite often. All currently presented filters can be divided into 2 types:
- Submersible, usually installed in the pump housing, and together with it are placed in the gas tank. On some models, filter replacement is not provided separately from the pump;
- Trunk, are established on a fuel line between a tank and the engine.
Timing
Virtually all modern cars there is a fairly clear schedule for filter replacement. Most often, the manufacturer recommends replacing the cleaning element every 40-50 thousand kilometers, this is an indicator for gasoline units. Submersible filters change about once every 70 thousand. On some models ( Ford Focus) the filter is installed for the entire life of the car, the engineers suggested that there should be no problems with it.
But, the practice of domestic motorists shows some differences from official recommendations. Often, filters have to be changed after 10,000-30,000 kilometers. The quality of the fuel is low. If you follow the official recommendations, then the car simply will not reach the scheduled filter change. Many drivers tell cases when, at low mileage, the cleaning element looked like clean oil was pumped through it. Therefore, experienced mechanics recommend that when choosing the timing of filter replacement, focus on their own observations.
When to change?
It is important for the driver to know when the filter should still be replaced. To determine the timing, there is a whole list of signs. From them, you can pretty accurately deduce the moment of replacement. All identification marks are associated with poor fuel supply. We list the main symptoms of a fuel filter malfunction:
- Unstable operation of the motor. Often manifested in sneezing, twitching;
- Significantly reduced power;
- Increased fuel consumption. This sign is considered indirect, far from always it's all interconnected.
Consequences
Some drivers do not see anything special in the operation of a car with a clogged cleaning element. But, in fact, such a ride is extremely dangerous for the power unit. Let us consider in more detail the consequences of this malfunction.
First of all, the filter ceases to cope with the purification of gasoline. That is, some of the dirt begins to seep further. At the same time, fuel pipes and injectors begin to clog. As a result, the power supply to the motor is disrupted, forcing it to work with an increased load.
Untreated fuel does not burn completely. Soot settles on the walls of the cylinders, clings to the valves. This leads to improper operation of the engine, overheating. And end up breaking down.
Increased fuel consumption is directly related to the psychology of the driver. When the filter is clogged, power is noticeably lost. In this case, the driver reflexively presses the gas harder. This causes the injector to inject more fuel, but the throttle response does not change. Only .
Thus, untimely replacement of the fuel filter leads to much more serious consequences. In the worst case, you will have to do a major overhaul of the power unit. But, even replacing nozzles will cost you more than an elementary replacement of a small part.
How to change a permanent filter? As already mentioned, some manufacturers naively believe that the fuel filter is able to waste the entire life of the machine. Replacement cleaners are not sold for such cars. Usually, these are submersible filters. Official dealers, if necessary, offer to buy a pump assembly. But, in practice, you can do without extra spending. It is enough to choose a suitable element from another model. This way you can save a lot.
Diesel filters
The main difference between such cleaning elements is their ability to retain water. As you know, diesel fuel often contains moisture. This negatively affects the operation of the engine. IN best case, work efficiency will be significantly reduced. At worst, something will happen that will lead to the need overhaul. Therefore, the diesel filter has an additional moisture-trapping layer.
The service life of the filter is lower compared to the gasoline counterpart. It is actively clogged with paraffin substances. Therefore, manufacturers recommend replacing every 30,000 kilometers. But, in fact, changing it is passed through 20,000 kilometers, and even more often in winter.
Conclusion. Fuel filter elements significantly extend the life of the engine by protecting it from dirt and water. But, many motorists are interested in how often and how much to change the fuel filter. After all, official dealers answer this question very vaguely. There is almost no such information in the manuals either. For a detailed answer to this question, you just need to carefully observe your car.
Unfortunately, domestic fuel is far from world standards in terms of quality and purity. In addition, particles of paint, rust, sand, etc. often get into the fuel from the gas tank. Therefore, the fuel requires purification from various impurities, and sometimes even water.
Here the fuel filter is also necessary to clean the fuel from all this "garbage". But it is not eternal, during operation it accumulates up to 50 g of “dirt” after driving every 5 thousand km. That is why it needs to be changed periodically. In this article, we will tell you how to understand that it is time to change the filter and how often it needs to be done so that the engine runs efficiently and does not cause serious damage.
When to change the fuel filter?
The service book usually indicates the frequency of replacing the fuel filter - on average, after 20-25 thousand km. But such a period of its work is calculated based on world standards for fuel. Ours are far from the same. Of course, the decision on how often to change the fuel filter on your car is up to the car owner himself. But still, the main reason for replacing the fuel filter is its contamination.
How, especially for an inexperienced motorist, to determine that the time has come when it is simply necessary to change the fuel filter. To do this, it is not at all necessary to extract it and examine it visually for contamination. The “behavior” of the car itself can also tell about this.
So, it's time to think about replacing the fuel filter if you observe in your car:
- uneven operation of the engine (“troit”, “sneezes”, etc.);
- a noticeable decrease in power;
- twitching while driving, especially when climbing a mountain;
- increase in fuel consumption;
- that it stalls for no apparent reason and is difficult to start.
Do-it-yourself fuel filter replacement
If you decide to replace the fuel filter yourself, be sure to use our tips:
- Pre-purchase a new filter and new fasteners for it. Make sure you have a wrench and socket wrench the right sizes, pliers and other tools, a flashlight (just in case) and cleaning products (to clean dirty places). For safety reasons, you must also have rubber gloves and goggles.
- During operation, do not forget about safety precautions (you are dealing with flammable substances).
- Relieve pressure in the fuel line (for example, remove the fuse and wait for the engine to stall).
- Disconnect the negative terminal on the battery.
- Remove the filter from the bracket.
- Install the new filter using new fasteners.
- Replace all removed parts.
- Start the car, repeating attempts several times.
Note: The engine won't start on the first try. This will happen when the pressure in the fuel line rises.
Below is a video of self replacement fuel filter on the example of LADA Kalina.
Which fuel filter to choose?
Don't be fooled by their cheapness. Such filters will not work for a long time. It is clear that expensive filters are not affordable for all motorists. However, they are the most wear-resistant and provide high-quality fuel cleaning. For example, SAKURA fuel filters have such characteristics.
The Ixora store always has fuel filters for all popular foreign cars and VAZ cars. Managers will always help with the choice.
| Manufacturer | Detail number | Part name | Applicability* |
|---|---|---|---|
| SAKURA | FC1104 | Fuel filter | FORD Ranger (TU_) 1999-2006; TOYOTA Land Cruiser Prado II (J120) 2002-2009 |
| SAKURA | FC1001 | Fuel filter | HYUNDAI Terracan (HP) 2001-2006; MITSUBISHI L 200 1992-2007; HYUNDAI PORTER TAGAZ 2.5D 80 2005- |
| SAKURA | F11130 | Fuel filter | TOYOTA LAND CRUISER (J200) 2007- |
| SAKURA | FC1801 | Fuel filter | ISUZU N-Series 1998- |
| SAKURA | EF1112 | Fuel filter | TOYOTA Dyna 2003-2006 |
| SAKURA | FC1301 | Fuel filter | Isuzu Trooper III 2000- |
| SAKURA | EF1509 | Fuel filter | ISUZU N-Series 2006- |
| SAKURA | FC1503 | Fuel filter | Isuzu Trooper III 2000- |
| SAKURA | FC1203 | Fuel filter | HYUNDAI Starex/H1 1997-2004; MITSUBISHI Pajero III 2000-2006; SUZUKI Grand Vitara (FT, GT) 1998-2006 |
| SAKURA | SFC2801 | Fuel filter | HYUNDAI HD 2010- |
| SAKURA | FS2301 | Fuel filter | OPEL ASTRA G 1.6 75 1998-2004 |
| SAKURA | EF1003 | Fuel filter | MITSUBISHI Canter 2004-2005 |
| SAKURA | FC1803 | Fuel filter | NISSAN EXPERT (W11) 1999-2005 |
| SAKURA | FC1108 | Fuel filter | TOYOTA COROLLA (E12) 2004-2007 |
| SAKURA | F1111 | Fuel filter | TOYOTA Fortuner 2004- |
| SAKURA | FC19070 |
