Replacing high pressure fuel filter. Fuel filter and its replacement. Filters rough cleaning

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You will need

  • - A set of keys;
  • - jack;
  • - Crosshead screwdriver;
  • - pliers;
  • - flat screwdriver;
  • - Protective glasses;
  • - Gloves.

Instruction

Put the protective glasses and gloves. Prepare tools. It is advisable to use products of verified quality, because it depends on how long your car will work.

Raise the car. It can be done with the help of a jack and put backups under all the wheels. You should not rely only on one backup, because it can be very dangerous.

Determine the location of the fuel filter. It may vary depending on the engine design. The search is worth starting near the fuel tank or under the body, since the probability of finding the item is quite high there. You can also read the user manual or call the service center to find the answer to this question.

Remove the protective coating that is applied to fuel filter. Most filters have a plastic coating to prevent mechanical damage. It is easily removed by a key or screwdriver.

Remove the fuel filters attached to the fuel filter. There are several options for connecting these hoses with the pump. For example, it can be brackets or clamps. Use a screwdriver or wrench, depending on what you need to delete.

Close the hole in the fuel line with a pencil or something like that, and put the canister under it. Disconnect the fuel filter from the mechanism, remembering, how it was located. Most likely, it should be directed from the gas tank to the engine. The most important is to remember the direction of the location of the membrane on the filter.

Install the new fuel filter. Be sure that it is oriented, just like the previous one. Install all the details in place. Make sure that there is nothing superfluous.

Video on the topic

Helpful advice

Do not clamp the bolts on the fuel filter too much. This can damage the part and leakage of fuel. Change the fuel filter about every 10 or 15 thousand kilometers. Vehicles Over 10 years old may have rusty fuel tanks, which also clogs the filter. Buying a new fuel filter will be cheaper than replacing the fuel pump. Sometimes special tools are required to remove fuel lines and filters. Some manufacturers provide these tools when buying a car or for a fee. Before starting work, make sure that the engine is cold. Any heat can cause a fire.

Make sure the car is secure and rigidly fixed in place before starting work.

Never smoke and do not brings outdoor fire during the fuel filter replacement process.

Any automotive power plant: both diesel, and gasoline - functions due to the transformation of energy secreted during combustion of a combustible mixture into a rotational motion crankshaft. Fuel, as part of a combustible mixture, is fed to the cylinders of the power plant using a complex combustible supply system - the power supply system.

Car fuel filter device in the cut

To ensure the correct operation of the power supply system, as well as minimize the possibility of exiting this system in order, the fuel should be purified from all kinds of mechanical impurities.

What to change the fuel filter

In the gasoline carburetor force unit, these impurities can score fuel channels in the carburetor, which is why there are interruptions in the operation of the power plant. In addition, mechanical impurities have an abrasive property, so they can over time damage some elements of the carburetor.

The presence of impurities in gasoline is no longer desirable if the car has an injection system - injector. Gasoline in such a system in the cylinders enters pressure and dosed. The dosage of gasoline in such a system is produced by nozzle. And in the structure of the nozzle there are interacting parts with high precision processing - precision pairs. So, impurities in gasoline with its abrasive property can cause either damage to the surface of the pair of data, or to the encoding of these parts, which leads to the outbreak failure.

This approximately looks like a fuel filter when running at 30,000 km.

The most demanding fuel purity is a diesel power system. In this power system, the precision pairs are available not only in nozzles, but also in high pressure fuel pump, so the presence of impurities can output and the nozzles, and the pump. Therefore, the design of any power supply system includes fuel.

What are the fuel filters, their types and device

- Element of the power system that produces additional fuel cleaning from impurities available in it. Usually there are several fuel filters With a different level of degree of fuel cleaning (coarse and fine filters).

Fuel filter for rough Cleaning Allows you to clean the fuel from impurities with a size of up to 0.1 mm. Typically, such filters are a grid made of brass. Often it is installed on cars such a grid in several places. So, often the first filter is a grid installed in the tank neck. Usually the grid in the neck has relatively large cells and is intended to hold particularly large polluting particles.

In the carburetor power systems, another mesh on the fuel facility is installed. This grid already has significantly smaller cells and allows you to separate medium impurities from fuel.

In some carburetors (Solex), another mesh is often found with already small cells. It is installed in the inlet fitting.

IN injector engines The fuel filter of coarse purification is also represented in the form of a mesh, but it is included in the design of the fuel pump installed directly in the tank.

Some fuel systems, in most diesel, in addition to grids that perform the role of coarse filter, are also equipped with a filter-sump. This filter is also intended to remove large polluting particles.

Fine cleaning filters allow cleaning fuel from impurities up to 0.001 mm. In different fuel systems, it is located differently. Thus, in the carburetor system, it is installed in the fuel line between the fuel supply and gas station. In the injection engines "thin" filter is between the fuel pump and the ramp. Diesel, this filter is usually located between the filter-sump and high pressure pump.

Filters of coarse fuel purification, as they are designed to capture large impurities, usually have a collapsible design, which allows them to make a flushing. Each of the brass grids installed in the power system can be removed, rinse and set back. Filter-sump, with any kind of constructive design, can be disassembled, rinse and it will work further. True, in some filters-sumps the filter element is installed, which, depending on either replaced or washed and is installed back.

Types of fuel filters of fine cleaning

Filters intended for fine fuel purification are two types: collapsible and unintended. Collapsible filters are usually installed in diesel power systems, although they are found in engines with such a power system and unsolved filters.

Insofar as diesel systems The nutrition is very demanding to the quality of fuel, the "thin" filters are replaced significantly more often than in gasoline. Usually, the fuel filter consists of a housing in which the filter element is placed. Replacing the fuel filter of the collapsible design is performed by disassembling the filter with the subsequent replacement of the filter element.

Inspection filter designs are used more often on gasoline fuel systems. IN gasoline engines Replacing the fuel filter is less common than a diesel engine. Usually, such a filter is simply disconnected from the power system and the new one is installed in its place.

In any case, that the power plant worked without failures, required timely replacement Fuel filter.

Where is the fuel filter

Before making the fuel system maintenance, you need to know where the filter is located. Grid filters, as already mentioned, have certain installation points, so it is not difficult to find them.

Fuel filter on the lade prior. The arrow shows in which direction the filter is put

Filters-sumps in any car are located near the tank. Find out where the fuel filter is a sump, you can, tracing the fuel pipes leading from the tank, they will in any case lead to this filter.

Find a "thin" filter in a car with a carburetor system is also not difficult. This filter is usually placed in the procession space. It is installed in the supply fuel pipe leading to the gas station.

Filter of fine cleaning in a car with an injection system is often installed in the tank itself or near it. That is, to understand where the fuel filter is located in a car with this power system, it is enough to drive cars on watching pit. If it is not visible from the tank and the fuel lines lead from the tank directly into the pumproom space, it means that the filter is installed in the tank.

Diesels power plants "Thin" filters are often mounted in the boilerspace, not far from the high pressure pump. You can find it by tracing the fuel supplies leading from it. The pipe entering the pump always comes from the fuel filter.

The purpose of the fuel filtering device in the car lies in high-quality cleaning used fuel. Finding into fuel equipment, pollutants accumulate and can cause engine stop or interruptions in the car. It is necessary to monitor the frequency of replacement of the fuel filter so that it can qualitatively cope with the function of separation and retention of foreign impurities.

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Types of fuel system

Auto Fuel System Scheme

To understand when you need to change the filtering device on a gasoline or diesel engine, you need to disassemble the varieties of fuel systems:

  1. Carburetor. Such motors work on gasoline. Carburetor systems are considered obsolete and are among the most complex in design. The purpose of the carburetor is to prepare the fuel-air mixture for power aggregate. Carburetor systems have many subsystems that ensure the implementation of this function in different modes the work of the DVS. Despite all the flaws, such engines have virtues. For example, low repairs price due to inexpensive elements fuel equipment. Carburetor motors do not need high pressure pumps. Cons usually associated with the maintenance of the engine. Carburetor engines We need constant care. In the cold season, the motor must be properly configured so that it can be launched without any problems at low negative temperatures.
  2. Monocentlete. They are considered more modern systems characterized by the presence of monophonic injection. Instead of a carburetor, a sprayer equipped with one nozzle is used. Spraying of fuel occurs at the moment when the power unit sucks air flows. Monocentlete power systems are installed on gasoline engines. For optimal operation of the unit requires the presence of high pressure fuel pump and return highway. The system is also equipped with an engine control unit used for proper dosage of gasoline. The control module receives data from sensors mass flow Air, fuel pressure and other, resulting in a manner to work for correct operation. Thanks to the use of monophonic injection, the design itself is more expensive compared to carburetor systemsBut the unit is easier at cold temperatures and is generally more stable. This reduces the financial costs of maintenance.
  3. Injector power systems with distributed injection. More perfect engine option. Multiple or distribution injection can be used. In such versions, the main disadvantages were corrected for older injection systems. Each cylinder of the power unit is equipped with nozzles. In general, the injectors have a similar principle of operation with the systems described above, but such motors are considered more environmentally friendly. Thanks to the modernization, the designers managed to achieve the stable functioning of the unit and reduce the fuel consumption, and the cost cost of systems was also increased.
  4. Injector DVS with direct injection. This type is considered one of the most advanced. In such engines, the process of spraying the fuel-air mixture is carried out using nozzles mounted on each motor cylinder. Due to this, the consumption of fuel compared to the system with the distribution injection was reduced by 20%. Designers were able to increase technical specifications The work of the unit, including its power. The main disadvantage of such a system is its high cost, high demands for operation and quality of fuel poured, as well as the dependence on the use of different pumping devices. It is not only about the high pressure fuel pump.
  5. Diesel systems with plunger multi-section pump. In it, the injection of fuel is carried out at the moment when the pump section issues a portion of fuel. The pump itself is activated from the effects of a crank shaft. Such systems are not so demanding on the quality of the used diesel fuel, its value is generally lower, but it is not so environmentally friendly. These systems are not equipped with a turbocharger, which can be attributed to disadvantages.
  6. Diesel systems with pumps-nozzles. Of the advantages of improved motors, you can allocate practicality and more reliable operation of the engine. When breaking one of the cylinders, other devices continue to work in the usual mode. Each nozzle is equipped with its own pump, which makes it possible not to use too long fuel drills of increased pressure. But the cost of nozzles is pretty high, and these elements refer to the category of consumables, so they are also changed with a certain periodicity when they work out their service life. Such systems are demanding on the quality of the fuel used.
  7. COMMON RAIL.. Such power systems are considered the most advanced, their use implies the use of a common ramp. The principle of operation is similar to the vehicle of direct injection on gasoline. Common Rail power systems involve the presence of an electrical pumping device of increased pressure, with which the highways are created above 200 atmospheres. Through the electrical pulses served from the engine control unit, the injectors are opened. The main advantages of the system include high coefficient useful action aggregate, reduced fuel consumption and minimum volume harmful substances In the exhaust gases, which makes the motors eco-friendly. By minuses include the demanding of engines to the quality of diesel fuel.

The Ural Biker channel showed how the filtering fuel filter was changed in Nissan Casca.

Fuel filter replacement interval in the car

Now we will analyze how often and with what mileage you need to replace the filtering device. The exact period of operation and kilometer at which the element change is performed, indicated in the official regulation. To understand how much to change the filter will definitely familiarize yourself with service book. The device replacement interval depends on the terms of use, in particular, on the quality of the fuel fuel and dusting of our roads.

Given these factors, from the filter service specified by the manufacturer, it is necessary to subtract at least 10-15 thousand km of run. If the service manual states that the device will work 40 thousand km, it is recommended to replace it in 25-30 thousand. Specialists are advised to replace the fuel filter every 20-25 thousand km of mileage, no matter when it recommends that the automaker is recommended. Some Ford and Nissan models are equipped with non-serving filters, the resource of operation of which is equal to the service life of the machine. The Nissan manufacturer in the brands of cars equipped with serviced filters, installed the replacement interval, which constitutes 10 thousand km of mileage.

Causes of faults

In what cases it is necessary to change the filter element:

  1. If he clogged and worked out his service life.
  2. If the power system is repaired, and during the process, some of its components were removed.
  3. If dirt and other third-party substances hit the benzobak, for example, additives, adversely affected on the operation of the force aggregate. When fuel lines are washed, you need to install a new filter.
  4. As a preventive measure before a long distance trip.
  5. If you have been refueling with low-quality flammable for a long time, which led to the emergence of problems in the engine.

What does a filtering device look like in a context after 10 thousand km of run, find out from the roller taken by the Texas TV channel.

Signs of scored filter

Briefly about the symptoms that indicate the inoperability of the filtering device:

  1. The power unit of the car began to work unevenly. DVS "Troit", its turnover is falling, then increase.
  2. Periodically, especially when driving uphill, the machine is losing power, its thrust is reduced. To replenish the power, the driver has to harm it harder.
  3. If the car rides a mountain on low revs, the engine can be stuck. At the same time, pressing the gas pedal will not give results.
  4. If the car is equipped automatic box Transmissions, then problems can occur in speeds. This is due to the fact that the engine is incorrectly transfers the command from the motor and performs the gear shift in time.
  5. Increases fuel consumption.

Replacing the fuel filter

Required tools

Before proceeding with the process, prepare the following:

  • filter itself;
  • wrench, their sizes depend on constructive features auto;
  • screwdrivers with a flat and crusade tip;
  • rags.

Auto repair channel provided a roller in which showed the process of replacing the filter device using the example of the Chevrolet Lacetti machine.

Step-by-step instruction

The replacement process in a car operating on a gasoline or diesel will be different depending on the installation site of the filter. The device can be located under the bottom of the car or in motor compartment. If the filter is maintenance free, it is established assembly with the fuel pump. Consider the replacement process for each case.

Without gas station

If TF is installed not in the fuel pump, but autonomously, the replacement procedure is carried out like this:

  1. Find a device located under the bottom of the car or in the engine compartment.
  2. Open a block with fuses and pull out the part that is responsible for the operation of the engine. Get the engine and wait until it stalls. This means that in fuel system Pressure was reset.
  3. Determine the type of fixing the fuel device to the highway. For attachment, manufacturers use bolts, selflessness, hose with clamps or special latches. Depending on the type of fixation, do the filter disassembly. To do this, you can disconnect the latches, weaken the clamps on the nozzles, unscrew the bolts or the screws, pre-wrapped the device into the rag. When disconnecting the filter, part of the fuel will come out of it, be careful. After dismantling the details, appreciate the condition of the gaskets and seals if they are. Worn sealing components are replaced.
  4. Install the installation of a new filter, taking into account the fuel direction on the highway. It is important to prevent an error here not to disrupt the engine. The arrow applied to the filter housing indicates the direction of fuel supply.
  5. Connect the fuel line in place and check its condition. In case of damage, the hoses are replaced.
  6. Put the pumping device safety element in place. Get the engine. Due to the discharge of pressure to do this from the first time it can be problematic, but after several start-up attempts everything will be done. Perform a checkpoint and check the filter state. If you have a leak, correct the problem.

1. Unscrew the bolts fixing the device on the highway 2. Install new filter and securely fix it

Assembly with fuel pump

If the filter is maintenance free, but it still bursts, car manufacturers recommend changing the fuel pump assembly.

But to save funds, it is possible to replace the filter directly, the role of which in pumping devices performs a special mesh:

  1. The gas station is mounted in the fuel tank. You can access it by removing the back seat and opening a special hatch that is fixed on the bolts. In some cars, for example, Ford Focus, Luke may not be. Then the car owner will have to dismantle the fuel tank.
  2. Open a block with fuses and dismantle the device responsible for the functioning of the pump. Run the motor and wait until it stalls.
  3. Opening the hatch, you will see the lid of the fuel pump. You need to disconnect the connectors from the wire connected to it, after which it is disassembling all the nozzles.
  4. Unscrew the lid and remove the fuel pump.
  5. The filter grid is located inside the device. The dismantling procedure depends on the design features of the machine, usually it does not cause difficulties. To dismiss the pump, unscrew all the bolts and dismantle its items to access the grid.
  6. After removing the grid, do not try to clean it. Many motorists think that cleaning under water pressure will allow the second time to use the mesh. After washing, it can really work out for a while, but usually it is not long. Replace the grid and build a pumping device. Install it in place, connect all disconnected nozzles and connectors. Put the fuse and boot the motor.

After how much is needed to change the fuel filter of a car operating on DT? The specified question is widespread among motorists. Some drivers believe that the planned replacement of the filter element must be made after 25 thousand km. Run. Others - change the device in winter. Who is right, let's figure it out.

Three-step device for filtering DT.

Fuel filters for diesel cars differ from devices designed to filter gasoline. Diesel engine It is very sensitive to the quality of fuel, for its stable operation it is necessary to use the most purified fuel. Therefore, DT cars have three degrees of combustible mixture:

  1. Purification in the gas tank. A special mesh prevents the flow of pollution into the fuel system.
  2. Rough cleaning. Prevents the flow of large particles.
  3. Thin cleaning. Designed to delay small dirt particles that can score nozzles.

In addition to preventing small particles of dust, soot, plants, insect filter should prevent the penetration of water to the combustion chamber. Plus, have a special heating to prevent the formation of paraffin crystals at low temperatures.

Replacement frequency

Obviously: the cost of the specified filtering element for machines operating on DT is high. Therefore, the question arises: "How often need to change the fuel filter diesel car? ". Make a reservation immediately save on consumable material not worth replacement diesel engine It will cost more.

In the car manual, you can find all the necessary information about the frequency of replacement of the filter device. It is important to choose the filtering element correctly. It should be approached not only in size, but also to have the necessary bandwidth and degree of filtering. The manufacturer in the manual indicates the type of filter and filter material. The use of the filtering device that is not appropriate by the parameters can harm the motor - this will lead to a decrease in the resource of the engine.

For most models of cars operating on Dt, the planned replacement of the fuel filter is performed after 40 thousand km. Run. At the same time, dealers insist that during the use of the machine in extreme conditions, it is necessary to reduce the interval between the planned replacements of the filtering element. Extreme conditions include:

  • very hot climate;
  • large motor loading;
  • increased dusting air;
  • frequent transportation of heavy cargo or trailer;
  • application of DT dubious quality;
  • extreme driving manner and so on.

All these factors reduce the filter resource lead to its premature wearMenuing the specified device accounts for more often.

An unscheduled fuel filter replacement is produced by noting such symptoms from the car:

  • "Troit" motor;
  • during driving, the machine dramatically loses power;
  • auto slowly gains momentum;
  • erected fuel consumption.

Noticing the specified problems, see the condition of the filtering device, perhaps the reason exactly in it.

Why in winter?

The harmful effects of paraffin on the filtering element

In winter at a certain temperature in poor quality diesel fuel Paraffin is formed, which can score the fuel filter. Therefore, experienced drivers carry a spare filtering device if the machine is operated in the region with a temperature -20 0 C and below. In this case, if the filter can be replaced by another.

There are drivers who prefer to install heated filters or use an "antigel". When heating the fuel fluid, the paraffin is not crystallized, the need to carry the additional element of filtration disappears. Application special fluids, preventing the formation of paraffin crystals also solves the problem with an unscheduled filter replacement due to low temperature.

Based on all the above, we can conclude: change the filtering device of the diesel car, according to the manufacturer's guidelines, and not only when low temperatures occur.

If you are a car owner with experience, then surely came across such a problem as the need to replace gasoline filter. This element of the car's design is responsible for the screening of the entire garbage, rust particles, dust, and also delays all the dirt, not allowing to fall into the fuel system highway. W. component parts The filter is extremely small cross section, so the accumulated garbage will soon or later score the filter, and, therefore, it will have to be replaced. You can do it with your own hands in the garage, without resorting to trips to car service.

Faults of gasoline filter

Fuel filtering in the car passes in two stages: Rough cleaning, during which all more or less large particles are removed, after which it goes thin cleaning. Speech will be on the fine cleaning filters that are located between fuel tank and engine.

The vast majority of automakers that produce products on modern market, It is argued that the fuel filter, which is installed in their machine, is enough for the entire period of operation of the machine. But such a result can be obtained only in laboratory conditions. In practice, there is another situation. In the state of the gasoline filter, the quality of fuel is strongly affected, as well as the number and structure of the garbage, which enters the system. You can neglect a similar type of repair, but what is it fraught with?

The consequences are really serious, since the load on, that is, the time of operation is reduced due to the filter. In addition, the flooded filter causes the engine to work incorrectly, since the fuel is fed to the system not as it should. That is, the car begins to told, can stumble at any time, and it may not start at all. Also arise problems with gear shift, since automation in the automatic transmission incorrectly interrupts the engine command relative to the gear shift, so or does not change the transmission at all, or does it not on time.

It makes sense to list clear signs, thanks to which you can define exactly, the fuel filter is clogged or not:

1) The engine of the machine works unevenly, that is, the car "Troit";

2) Periodically, during the movement, the car's power drops;

3) When moving on small circulation, the car stalls after pressing the pedal, even if it is strongly pressing it into the floor;

4) Speed \u200b\u200bswitched incorrectly, that is, not on time;

5) Increased fuel consumption.

It is such symptoms of the disease under the name "litter gasoline filter". But even if this does not happen to your car, then be prepared for the fact that one morning the car may not start. The problem is that these signs in the early stages of the "disease" are very difficult to notice, and therefore sudden troubles appear.

It should be disassembled with another question - what is the frequency of replacement of the gasoline filter? In the manual to your car, a figure of 40 thousand km will probably be indicated. So, from this figure you need to take at least 10 thousand km, since the roads in our country, and the quality of the supplied fuel leaves much to be desired. Turns out that the new gasoline filter must be installed after you drive a maximum of 30 - 35 thousand km by car. Specialists in services generally do such a procedure after 20 - 25 thousand km, despite the manufacturer's recommendations.

Tools for replacing a gasoline filter

In principle, the replacement of the gasoline filter is not an archent task. It's all about the patience and knowledge of the subtleties of this operation. First of all, you need to figure out what tools need to be prepared in order to replace. If the filter is under the bottom of the car, you will have to drive cars to the observation pit. Before removing the element, the following materials must be prepared:

1) New gasoline filter, and buying a product made by the manufacturer of your car, or the filter, which on the recommendations of the same manufacturer is suitable for your brand;

2) Spanners;

3) Cross and slotted screwdriver;

4) A piece of vet.

During the purchase of a new gasoline filter, you need to check the compliance of the new item as follows:

1) Filtration level. If this indicator is not performed enough, then large particles still enter the system together with flammable, and this is fraught with a quick engine breakage;

2) The area of \u200b\u200bthe filtering surface, the presence of a rubber seal, which will overlap the entrance directly to the filter. If there is no insulation, then in the future such a filter will be difficult to replace.

In general, the filters of fine cleaning depending on the fuel system are:

1) carburetor. Their allowable degree of purification is 15-20 microns, that is, smaller particles will enter the system, but the motor will not be serious harm;

2) Injector. The degree of cleaning is 5 - 10 microns. In such a system, the requirements for the maximum permissible size Polluting particles above. It turns out that the injectors can be clogged with larger particles, so the holes in the filters are made for them smaller.

Be sure to name the consultant to the brand of your car, as well as the year of its release. This will help choose the right filter. In principle, if there is no filter in the presence of your machine model, you can find a suitable replacement.

Be sure to comply with all safety regulations, as you have to work with flammable materials. During the process, gasoline leakage may occur, so the room where you plan to work should be well ventilated. Before you start work, you need:

1) Make a car, removing all the terminals with the battery;

2) Do not smoke and not to carry out the procedure near the sources of fire;

3) In advance you need to prepare a fire extinguisher (just in case);

4) When gasoline hit, it is necessary to immediately wash off the liquid with soap water.

In addition, it is necessary to reset the pressure in the petrol storage, as it is necessary to work with the fuel system. In order to do this, you need to put the car on the handbrake and turn on the "neutral", after which it is necessary to remove or move away rear seat, Open the hatch, which is under the chair on the bottom of the machine, disconnect the connector to turn off the fuel line. After that, get the engine and learn time until all gasoline leaves the motor. The machine must stall itself. Try again to start the car in order to make sure that the fuel pressure disappeared.

There is another way to descend the pressure. Remove the "minus" wire from the battery, after which remove the fuse F3 located in mounting block. This fuse is responsible for feeding the power to the fuel pump. Run the engine to keep all the fuel that is located in it. After the pressure is descended, you will need to return the fuse in place.

Features of the replacement of the gasoline filter

The procedure for replacing the fuel filter may be complicated by the fact that the fuel system in different machines Designed in different ways. There are brands in which the filter is located as convenient that it is possible to replace it without applying tools, but there are also such machines in which the filter is literally hidden. This element can be enshrined by special clamps or spring locks, that is, the remedies will not help in this case at all. Before proceeding with the work, carefully read how the fuel system of your car is designed.

The described instruction in some way is universal, but the differences in the process may be due to the features of the fuel system. If the manufacturer has installed a filter along with a fuel pump, then it will be better to replace the last element.

So, in order to remove the old fuel filter, you must:

1) Find out where the filter itself is located. If the carburetor machine, the filter element is located under the hood or under the bottom, and in the case of a gasoline car, the filter will be in the tank with the fuel pump.

2) Regardless of where the filter is located, remove the pressure in the fuel system in advance (mentioned above).

3) De-in the car, removing the terminal "-" of the rechargeable battery.

Dismantling of the fuel filter:

1) Carefully inspect the fuel filter and determine exactly how it is attached to the benzing (fasteners can be exhaust or intake). Clamps can be represented as bolts or latches. It is very important to remember the sequence in which all the details are located in order not to get confused when installing. You can take a picture of the installation location so that it is easier to restore the entire picture.

2) Take a pre-prepared piece of the vet and wrap the filter by it, as a small amount of gasoline comes out of it. Using a wrench or cruciform screwdriver, disconnect the fuel filter and fastened. After that, the element can be removed.

Installing a new filter:

1) Install the new filter to the position in which there was an old element (you will add an arrow on the filter, it shows the direction of motion of gasoline).

2) Connect the gasoline, do not forget before it check the nozzle for the presence of impulses. If there are damage on it, it will have to be replaced.

3) Install the fuse fuse and connect the terminals on the battery.

4) Get the car. Most likely, from the first attempt to do this will not work because of the lower pressure in the fuel system. Leave for 30 - 60 seconds. Ignition enabled, after which try to start the engine again.

As you can see, replace the fuel filter for even inexperienced car owner. Follow the instructions described above, and you will succeed.

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