Replacing the fuel filter on a VAZ 2110, causes of failure, consequences, step-by-step instructions

On VAZ 2110 cars, a fuel filter is used to clean the gasoline entering the engine.

During operation, it gradually becomes clogged with debris, so the installation of a new consumable is periodically required. Replacing the filter is easy to do with your own hands, both on a carburetor VAZ 2110 and on an injection one.

On the VAZ 2110 the injector has two filters. The first is responsible for fine fuel cleaning, and the second for coarse cleaning. On cars with a 1.5 liter engine with 8 and 16 valves there is a filter 21120-1117010.

Fuel filter 21120-1117010

Its price ranges from 200 to 300 rubles. You can see analogues of native consumables in the table below.

Table - Optimal analogues of a fuel filter with nuts

On cars with 1.6 liter engines 16 and 8 valves, filter 21230-1117010 is used. Unlike the previous consumable, it has clips instead of nuts for connecting fuel pipes. The cost of the filter is 200-300 rubles. You can see its analogues in the table below.

Filter 21230-1117010

Table - Analogs of fine fuel filter with clips

On injection VAZ 2110 with a 1.5 liter engine there is a filter mesh 2112-1139200. Its price is 30-80 rubles. Analogues of the original coarse filter can be found in the table below.

Table - Fuel filter meshes for a VAZ 2110 car with a 1.5 liter engine

On cars with a 1.6-liter engine, a coarse filter 1118-1139200 is used. Its cost ranges from 50 to 100 rubles. Analogues of the branded mesh can be found in the table below.

Table - Fuel filter screens for a VAZ 2110 car with a 1.6-liter engine

On carburetor VAZ 2110 there is a fuel filter 21080-1117010. Its cost varies from 50 to 120 rubles. The table below shows the best analogues of native consumables.

Table - Alternatives to the original fuel filter for a carburetor VAZ 2110

When to change the coarse filter

The condition of the fuel system can be determined by the developed pressure and performance. For these purposes, a pressure gauge is connected to the fuel system through a special adapter. It is better to do such diagnostics at a service station. At home, you can determine the performance of the fuel pump approximately this way:

• The ignition turns on. At the same time, the absence of a characteristic hum indicates that the pump is not working or, conversely, strong noise when the pump operates under heavy overload, which shortens its service life.
• If, when the car is moving in fourth or third speed, the driver presses the pedal and the pump performance drops, this indicates a problem in the fuel system.
• A spontaneous drop in speed while driving indicates problems with fuel supply from the gas tank.
• The reasons for such deviations will most likely be clogging of the coarse filter or fine fuel filter. In the first case, replacing the VAZ 2110 coarse filter may not be necessary; it is enough to try to wash the element, although this will only have a temporary effect. It is better to purchase a new part, the price of which is reasonable, and installation by yourself is quite simple and will not take much time, but the reliability of the gas pump will increase for a long time.

How to clean the coarse filter of a VAZ 2110 car

Before starting work you need to purchase:

• Gaskets for installation under the fittings located in the fuel line.
• Seal for VAZ fuel pump.
• Compressor.

The instructions indicate that cleaning the coarse filter on a VAZ 2110 car is carried out after removing it from the gas tank. To do this:

• The car is de-energized.
• The cushion is removed from the rear seat.
• The cover is removed from the hatch after unscrewing the screws.
• The electrical connector is removed.
• The fitting on the tube through which fuel is supplied is disconnected.
• The tube is moved to the side.
• In the same way, the fitting on the drain pipe tube is disconnected, which is also moved to the side.
• The pressure ring is removed.
• The fuel pump is lifted, the float is removed from the hole in the tank, and the fuel pump is removed simultaneously with the fuel level sensor.
• In the fuel pump, in its lower part, there is a filter for coarse fuel purification. The detail is shown in the photo.

Coarse filter for VAZ 2110 car

It is difficult to visually identify very small, translucent particles of dust or dirt; the filter seems clean, but you still need to wash it.

• The element is washed well with the same detergent and a brush with fine bristles (for example, a toothbrush).
• The coarse filter must be blown from the compressor with compressed air. If there is no compressor, the mesh simply dries out in the open air. It is necessary to prevent the entry of dust and dirt during this period.

• Assembling the fuel pump on a VAZ 2110 car is carried out in the reverse order of removal.
• The ignition is turned on and the operation of the fuel system is checked.

How to properly replace the VAZ 2110 coarse filter is clearly visible in the video. With timely and proper care of the fuel pump mesh, major problems with the operation of the fuel system can be avoided.

Installing a new filter

There are several features without which replacing the VAZ-2110 fuel filter will be done incorrectly, and you won’t get far with such a car. The point is that polarity must be observed. It is indicated by an arrow directly on the filter and indicates the direction of fuel movement through the pipeline. The new consumable element must be mounted in such a way that the indicator arrow on it is parallel to the movement of gasoline.

Of course, you can immediately see the condition of the clamp that holds the filter; if necessary, it can be replaced with a new one. The same applies to seals, which gradually lose their properties and therefore do not fulfill the task assigned to them. Therefore, if they have become unusable, then it is worth replacing them with more reliable new analogues. It is advisable to purchase only original spare parts, not copies.

Detailed instructions for replacing the VAZ 2110 fuel filter

It is located under the bottom of the car on the gas tank side and is attached directly to the body of the VAZ-2110 with a tightening clamp using just one bolt and nut. Structurally, it is a small barrel with outlets for hoses in the upper and lower flat parts. If you look in the direction of travel of the car, it is mounted slightly to the right of the muffler. As you already understood, all that remains is to remove it, for which you need to:

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1. Unscrew the fuel pipes on both sides of the barrel. Holding the nut on the filter itself with a 19mm wrench, use a 17mm wrench to unscrew the nut directly on the fuel pipe.

After that, a certain amount of gasoline remaining inside should flow out of the filter, so you can place a small container or rag under the bottom in advance, this will be enough.

1. All that remains is to loosen the fastening clamp. Here you will need a key for 10.

The tightening nut does not need to be completely unscrewed. When the clamp is loosened enough, you can simply remove the VAZ filter from its seat. Again, when you turn it over, a small amount of fuel will spill out of the holes.

Recommendations before installing a new VAZ-2110 fuel filter

To prevent gasoline leaks while driving, you need to check the condition of the rubber gaskets on the fittings connecting the product to the fuel system of the VAZ-2110. If they are crushed, torn or have other signs of wear, they need to be replaced. Fortunately, such gaskets cost mere pennies and, for the purpose of prevention, they can be changed without even looking after each filter replacement.

Also do not forget about the correct connection of the purifier when reinstalling it. Any VAZ 2110 fuel filter on the body contains an arrow indicator with the correct direction of fuel movement through it. Mark in advance or remember the direction of movement of gasoline according to the previously removed filter and connect the new one in the same way.

We also remind you that when reconnecting the fuel connections of the VAZ 2110, you must use two keys, similar to the dismantling process. Use a 19 wrench to hold the nut on the barrel and tighten the nut on the pipe with a 17 wrench. At this point, in principle, the replacement process can be considered complete. Don't forget to also reconnect the electrical connection to the fuel pump and you're good to go.

Purpose and types

An important element of a car's fuel system is the filter. Its purpose is to purify gasoline as it passes from the tank to the engine cylinders. Over time it becomes clogged and you will need to replace the filter. So:

• It can be done in fifteen minutes in a simple way
• Requires a minimum number of tools (a person seeing this filter for the first time can handle it) and a little diligence
• You can buy a fuel filter for the VAZ 2112 model without any problems at any auto parts store.
• Externally, it looks like a small barrel with fastenings on the sides (Photo above).

There are two types of fuel filters with two options for connecting them. Joining is carried out through:

• Or a threaded connection (when tubes are inserted into the filter and screwed with fittings) as on the VAZ 2112
• Or using special wire retaining earrings (they are pulled out, then it becomes possible to remove the fuel hoses and install a new fuel filter; after connecting the hoses, we return the earrings to their place) as on the VAZ 21124

Types of filters: which ones are better

Car enthusiasts who are about to change coarse or fine filters for the first time often ask other VAZ owners which filter element is best to choose. The cost of products from all manufacturers is approximately the same, so you want to get competent advice “first-hand” and avoid incorrect recommendations.

On car owner forums, filters from the Big and Mahle brands are most often mentioned. It should be remembered that no one is insured against manufacturing defects.

However, VAZ owners often support domestic manufacturers by purchasing Salyut filters. The most popular parts are:

• article UT-00002606, catalog number 21080–1117010 - with sump;
• article 00000011756, catalog number: 21230–1117010;
• article: 00000009674, catalog number 21120–1117010.

The Salyut filter differs from analogues in its acceptable quality and more than attractive price

When the fuel filter is dirty

The quality standards of gasoline at gas stations are constantly increasing, but it is not yet possible to get rid of the presence of mechanical particles and other contaminants in their composition. In addition, dirt, corrosive deposits and other fractions are also found inside the fuel tank. All this does not have the best effect on the operation of the power plant.

To prevent foreign particles from entering the cylinders and to rid the fuel-air mixture of excess condensate, coarse and fine fuel filters are used

Operating a car without these parts will lead to premature wear of the fuel pump, injectors responsible for stable injection of the mixture into the engine block with combustion chambers and the entire system as a whole, no matter whether it is 8-valve or 16-valve.

Fuel filter location

The Lada Granta has 8 and 16 valves, in luxury or in base - it doesn’t matter, the filters are in standard places. Fine cleaning element to the right of the gas tank at the bottom of the sill. This applies to all body types, sedan or liftback. It is secured with nylon or plastic clamps. To get to it, you need to use an overpass; if you wish, you can crawl under the bottom by lifting the desired side with a jack.

In order to secure such a procedure, you should duplicate the position of the car with an additional support, since the jack may fall off. The coarse filter, or simply a mesh, is located inside the gas tank on the gas pump. To access it, you need to fold down the rear seat. Under it there is a hatch through which you can get to the block with the fuel pump.

Replacement Regulations

The frequency of replacement of fuel filters on the Lada Granta is not of fundamental importance, regardless of the configuration, type of power plant and body design. According to the manufacturer, the mesh does not require replacement and is designed for the entire service life of the fuel pump. Considering the low quality of gasoline, this is not true. Such a statement can be justified if only high-quality and clean fuel is used. Of course, this does not mean that you need to change the filter often. But it is recommended to do this every time the fuel pump is removed for some reason.

They are considered consumables, i.e. such parts become dirty and wear out relatively quickly and must be replaced on time. The fuel filter under the gas tank (fine cleaning) according to the regulations on the Lada Grant 8 valves or 16 should be changed every 30,000 kilometers. In reality, everything looks a little different, since pollution directly depends on the purity and quality of gasoline at the gas station. Experienced car enthusiasts try to change the fuel filter twice as often, i.e. after 15,000 kilometers. Or once a year. And for some, even more often - during a seasonal oil change in the engine.

Signs of a faulty filter

The main problem of a clogged mesh is a decrease in fuel throughput. Accordingly, insufficient supply leads to a decrease in pressure in the fuel rail. The filter does not become dirty overnight, and therefore the pressure in the fuel system does not decrease immediately. At first, the effects of pollution are almost invisible. The lower the pressure in the system, the worse the fuel-air mixture. An insufficient amount of gasoline depletes the mixture with air, and accordingly, this negatively affects the stable operation of the power plant.

A clogged element can be identified by the following signs:

• unstable operation of the propulsion system;
• the engine stalls at idle;
• revolutions “float”;
• decrease in dynamic characteristics and power failures;
• When driving, sharp jerks are felt without pressing the accelerator pedal.

If any of the above symptoms occur, the first thing you need to do is determine the pressure in the fuel rail. If the level is below the values ​​​​set by the manufacturer (less than 4 kgf/cm), the consumables should be checked and, if necessary, replaced. Since the fine filter is easier to change, you need to start with it.

Next, you can replace the filter in the gas tank. A dirty mesh in the tank negatively affects the proper operation of the fuel pump, since not enough fuel enters the fuel line. The gas pump increases speed, trying to capture more gasoline, as a result of which its already limited resource is sharply reduced. At the same time, do not forget that gasoline is also used to cool the working parts of the gasoline pump and lubricate them. Insufficient fuel leads to lack of lubrication and overheating.

We protect nature and the environment

When replacing the fuel filter, pay special attention to ensure that gasoline does not come into contact with the soil, plants, or water. Gasoline is poison! Therefore, if it gets into the soil or water bodies, it negatively affects human life, the symbiosis of adjacent varieties of plants and insects, as well as animals.

Sometimes to change the fine filter due to problems with the engine. Jerking while driving and unstable idle speed may indicate critical contamination of the fuel filter.

Replacing the fuel filter yourself

The procedure for replacing the fuel filter takes approximately 10–15 minutes. The car owner can easily spend this time, saving on the services of service station specialists.

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On different VAZ modifications, the fuel filter may be located differently:

• On carburetor engines, the filter is located between the gas tank and the engine itself. To make it easier to find it, you can open the hood, find the vacuum brake booster, and above it is a reservoir with brake fluid. The filter is located near this tank;
• On injection models, you do not need to open the hood - the filter is located on the bottom of the car. That is, access to it is possible only from below. The fastening area is under the second row of seats in the middle of the beam.

Signs of abnormal fuel system operation

Even if the car is operating normally, it is necessary to change the filters according to the manufacturer’s recommendations (every 30 thousand kilometers). Premature replacement is carried out if certain symptoms are present:

• the car begins to twitch when driving;
• fuel supply to the engine is difficult due to severe pollution;
• It becomes difficult to start the engine when cold.

Video: a common cause of engine breakdowns is a clogged fuel filter

How to replace the fuel filter on an injector

VAZ of the tenth family, running on injection-type engines, have a more complex structure. This is due to the fact that the filter is located under the car body. To remove it, you will have to either crawl under the car or drive the car into a hole.

The location of the filter on the rear beam on the bottom is typical for injection modifications of the VAZ

In any case, before starting work, it is necessary to relieve the gasoline pressure in the fuel system. The easiest way to do this is this:

• Fold down the rear seat cushion in the passenger compartment. Below it is the fuel tank hatch.
• Open the hatch and disconnect the wiring harness from the fuel pump located in the tank.
• After this, start the engine and wait until it stalls on its own.
• Start the engine again to achieve a maximum reduction in the fuel level in the system and, accordingly, pressure.

Is it possible to change the filter without involving specialists?

The procedure for removing the filter from the injection VAZ 2110, 2111, 2112 is as follows:

1. Provide yourself with convenient access to the rear beam of the vehicle.
2. First, wipe the filter itself with a rag to remove any dirt and grime from it, then spray the fastening joints with WD-40.
3. After 5–10 minutes, when the liquid is absorbed, you can unscrew the fuel lines from the filter: use one wrench to secure the filter nut, and use the other to turn the line nut.
4. After disconnecting the tubes, gasoline may leak out (it is better to place clean containers or a rag under the filter to absorb flammable liquid).
5. You will see rubber rings at different ends of the filter after disconnecting the hoses. They can be immediately disconnected with the blade of a flat-head screwdriver.
6. Next, remove the filter itself.

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The product is replaced in the reverse order. Before installing the filter, it is recommended to lubricate the rubber seals with gasoline.

How to install a fuel filter on a carburetor

The simplicity of the design of carburetor modifications of the VAZ 2110–2112 allows you to replace the fuel filter in a matter of minutes. However, to avoid injury, work should only be carried out with a cooled engine and after releasing the pressure. You need to do this:

1. Fold down the rear seat in the cabin. Directly below it is the fuel tank flap.
2. Use a flat-head screwdriver to unscrew the hatch screws, after which the cover is removed.
3. There is a pump in the gas tank itself - you need to disconnect the power harness from it (remove the terminal with the wire cable).

After this, you will need to start the engine and wait until it stalls due to lack of fuel. It is recommended to start it several times until the engine stops starting.

On carburetor VAZ models, the filter is located under the hood

Then you can proceed directly to dismantling the fuel filter:

1. Open the hood.
2. Next to the brake fluid reservoir there is the filter itself, two fuel lines are connected to it.
3. Using a Phillips screwdriver, first one pipe is disconnected, and then the second. It is possible that there is still fuel left in the system, then gasoline will flow from the hoses. It is best to immediately place a container under them or plug the holes with a bolt of suitable diameter.
4. The filter can be easily removed and a new one can be installed in its place.

The hoses can be connected in any order. The main thing is not to mix up the fuel supply and return hoses when working.

Which is better - replacing or cleaning the filter element?

In some cases, if the filter resource has not yet been fully exhausted, car owners resort to such an operation as cleaning. To do this, you will need to disassemble the filter housing and blow it out with a can of compressed air or a conventional pump. Typically, this procedure allows you to restore its throughput and quality of gasoline purification.

After dismantling the product, it will be necessary to replace the rings and check the thread pattern of the fasteners

However, not all car owners note the advisability of such an operation. If any operational problems occur, it is best to immediately replace the filter. Moreover, the rubber seals will need to be changed every time after its removal.

The fact is that any new product will work better than a cleaned old one. In addition, the cost of fuel filters for the VAZ of the tenth family is such that every driver can afford to buy this element.

Table: is it worth changing the part: pros and cons of installing a new kit

Video: how often should you replace the fine filter?

Thus, any driver can change the fuel filter on VAZ 2110, 2111, 2112 cars. Depending on the type of motor, the procedure will be carried out either in the garage or in the inspection pit. Taking into account the precautions and basic recommendations for dismantling and installation, it is not difficult to replace the fuel filter within 10 minutes.

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One of the simplest operations to repair a VAZ 2112 is replacing the fuel filter. The process itself takes up to 1 hour, but professional car enthusiasts do everything in 30 minutes. In 2013, a record was set at the AvtoVAZ plant when a fuel filter element was replaced in 12 minutes. This achievement is included in the Guinness Book of Records.

Below is a video about replacing the fuel filter on the tenth family (VAZ-2110, VAZ-2111, VAZ-2112)

The video will tell you about replacing the fuel filter, and also contains some recommendations and tips.

DIY replacement

If this is your first time changing the TF yourself, we strongly recommend that you use our step-by-step instructions. Without relevant experience, it is better to entrust this matter to specialists at a service station. But if you are confident that you can do this, then just follow all the instructions in the instructions.

What will you need?

Before you start changing, keep in mind that it is more desirable and much more convenient to carry out this process in a pit or overpass. Also prepare in advance:

• new TF;
• a set of wrenches (you will need wrenches “10”, “17” and “19”);
• a small container for gasoline, which is in the filter;
• rags;
• liquid "VD-40".
  Replacing TF with VAZ 2110

Element replacement process

First of all, we drive into a pit or overpass and turn off the car. Then you should relieve the pressure in the fuel line. To do this, open the fuse box and dismantle the one that determines the functioning of the fuel pump. Next, you need to start the engine and wait until it stalls. Now you need to crawl under the car and find your TF in the gas tank area. You will see it right away; two gas pipes connect to it. We take a container prepared in advance and place it under the gasoline filter (this is done in case there is gasoline left in it). Next, if necessary, take VD-40 liquid and treat the gas line fittings (this is done to clean them of dirt and rust). After this, take the keys “17” and “19” and unscrew the nuts of the fittings, as well as the bolt securing the clamp

Dismantling TF

Then carefully remove the old TF and throw it away. We install the new element (pay attention to the arrows) and assemble everything in the reverse order, while tightly tightening the nuts of the fittings and not forgetting to check the tightness of the connections. Next, replace the fuel pump fuse and start the engine. Having done this, crawl under the car again and check if gasoline is leaking at the fuel line.

Where is it located?

If you feel how, while driving, your “iron horse” loses power from time to time and moves jerkily when changing gears, then changing the fuel filter (hereinafter referred to as TF) of the VAZ 2110 is simply necessary. If you decide to change an element yourself, then first you need to know where it is located. Unlike its predecessors, where the TF was installed under the hood, engineers installed this component of the system in the VAZ 2110 injection cars next to the gas tank. To gain access to the element, simply crawl under the bottom of your car.

Location of TF VAZ 2110

Replacing the fuel filter VAZ 2110

You can change the fuel filter on both carburetor and injection models of the VAZ 2110 using keys “17” and “19”, as well as a screwdriver.

The only rule for both options is that you must first remove the wires from the terminal on the gas tank to avoid sparks. To do this, lift the rear seat, unscrew the hatch bolts and temporarily remove the wires.

Replacement on the carburetor

Replacement procedure after removing the wires from the gas tank:

Removing the fuel filter for VAZ 2110, 2111, 2112 carburetor

1. Open the hood.
2. We find the fuel filter near the brake fluid reservoir.
3. Using a Phillips screwdriver, remove the two fuel pipes (some gasoline will come out of them).
4. Remove the old filter and put on the new element.
5. We install the fuel lines in place.
6. We check the tightness of all connections; gasoline should not drip from under the lines.

During the installation process, it is important not to confuse the fuel supply and return pipes

Replacement on the injector

Unscrewing the fuel filter fasteners on the injector

Step-by-step replacement process on a 1.5 and 1.6 liter injection engine:

1. Clean the filter with a metal brush, then wipe with a rag.
2. The nuts that hold the filter in place should be lubricated with WD-40.
3. Use the key set to “19” to hold the filter housing, and use the key set to “17” to unscrew the fitting.
4. There are rubber rings at the ends of the fittings; they need to be replaced.
5. We install the new filter in the reverse order, tightening the nut on the fuel line well.

The filter housing indicates the direction (arrow) for correct installation.

After installation, you need to return to the cabin and put the wires on the tank terminal, install the hatch in place, wipe the surface and lower the seat.

On VAZ 2110 cars, a fuel filter is used to clean the gasoline entering the engine.

During operation, it gradually becomes clogged with debris, so the installation of a new consumable is periodically required. Replacing the filter is easy to do with your own hands, both on a carburetor VAZ 2110 and on an injection one.

On the VAZ 2110 the injector has two filters. The first is responsible for fine fuel cleaning, and the second for coarse cleaning. On cars with a 1.5 liter engine with 8 and 16 valves there is a filter 21120-1117010.

Fuel filter 21120-1117010

Its price ranges from 200 to 300 rubles. You can see analogues of native consumables in the table below.

Table - Optimal analogues of a fuel filter with nuts

On cars with 1.6 liter engines 16 and 8 valves, filter 21230-1117010 is used. Unlike the previous consumable, it has clips instead of nuts for connecting fuel pipes. The cost of the filter is 200-300 rubles. You can see its analogues in the table below.

Filter 21230-1117010

Table - Analogs of fine fuel filter with clips

On injection VAZ 2110 with a 1.5 liter engine there is a filter mesh 2112-1139200. Its price is 30-80 rubles. Analogues of the original coarse filter can be found in the table below.

Table - Fuel filter meshes for a VAZ 2110 car with a 1.5 liter engine

On cars with a 1.6-liter engine, a coarse filter 1118-1139200 is used. Its cost ranges from 50 to 100 rubles. Analogues of the branded mesh can be found in the table below.

Table - Fuel filter screens for a VAZ 2110 car with a 1.6-liter engine

On carburetor VAZ 2110 there is a fuel filter 21080-1117010. Its cost varies from 50 to 120 rubles. The table below shows the best analogues of native consumables.

Table - Alternatives to the original fuel filter for a carburetor VAZ 2110

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The fuel filter on VAZ 2110, 2111 and 2112 cars does not differ from each other, since these cars were built on the same platform - Lada 110. The main difference in the fuel filters on these cars is whether it is a carburetor or injection version.
On all trim levels of these vehicles, it is removed from the gas tank. The main manufacturer of original spare parts is Russian. Also in the original there may be filters from (LAAZ). On VAZ 2112/2111/2110 cars with an injector, 2 fuel filters are installed - the main one, which is also a fine filter. Additionally, there is a filter mesh (coarse), which is located in the tank and attached to the fuel pump. It differs depending on the engine size of the above-mentioned cars.

On injection VAZs with a volume of 1.5 they put 2112-1139200, on 1.6 - 1118-1139200 (new model). Also, on the relatively rare version of the VAZ 2112, there is a different filter mesh in the back, from Priora.

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Instructions for replacing filter 21120-1117010 are presented below.

• Relieve pressure in the fuel circuit.
• Unscrew the fuel pipes.

Loosen the clamp.

Remove the filter.

• Check the O-rings and replace them if necessary.
• Install a new filter.

Replacing the fuel filter on a VAZ 2101-VAZ 2107

Welcome! Have you ever had this happen to your car? You're driving along the highway and suddenly there are jerks while it's moving? If yes! It is most likely that something called a “fuel filter” is to blame for this. You will find more details about when the filter needs to be replaced just below, in the section: “When you need to change the fuel filter.”

Note! To replace the filter with a new one, you will need: a pair of screwdrivers, as well as a bottle to drain the remaining fuel from the filter into, and of course the new filter itself!

You will also need some kind of plug with which you will close the hole in the fuel line hose. (To understand what we are talking about, see the “withdrawal” section in this article, paragraph “3”. Namely, read the “Note!” to this paragraph)

Where is the fuel filter located? The location of the filter is very simple, but to look at it you will need to first open the hood of the car and then in the engine compartment find the brake master cylinder, which is indicated by the red arrow. Found it? So, under the main brake cylinder there is immediately a filter for fine fuel purification, which is popularly called a fuel filter, it is indicated by a blue arrow.

When should you change the fuel filter? As such, there is no frequency in filter replacement, but why do you ask? Yes, because it needs to be changed only when it is dirty, and if we take into account the fact that each owner operates his car in his own way, then the filter of different cars will also become dirty in his own way. For example, look at the photo below which shows a heavily dirty filter. By the way, if the filter is dirty, the car’s engine will start to work intermittently, namely:

By the way, if the filter is dirty, the car’s engine will start to work intermittently, namely:

1. The car will experience jerking when moving, both at high engine speeds and at low speeds.

What affects filter contamination? The fuel that you pour into your car plays a very important role in pollution; if the fuel is terrible, then the filter will not live a very long life, and other parts too.

When should you check the filter for cleanliness? You need to check the filter more often, especially if you are not sure of the purity of the gasoline you are pouring into your car.

Note! Unfortunately, at the moment, not all filters are equipped with a transparent housing, through which you can easily determine whether the filter is dirty!

How to replace the fuel filter on a VAZ 2101-VAZ 2107?

Note! Don’t even try to repair a dirty filter in any way, because the fuel filter is not dismountable, and even if you somehow disassemble it, you are unlikely to be able to put it back together!

Removal: 1) First, place a bottle under the fuel filter.

2) Next, unscrew the clamp screw that secures the fuel pump hose to the filter. And then disconnect the hose from the filter.

Note! After you disconnect the hose from the filter, immediately direct it into the bottle so that all the remaining fuel is drained from it!

3) Then remove the clamp screw that secures the fuel line hose to the filter. And then disconnect the hose from the filter, directing it into a bottle to drain the fuel and also removing the fuel filter from the engine.

Note! After removing the filter, immediately close the hose holes with some kind of plug, otherwise all the gasoline that you have in the tank will pour out of it!

Installation: 1) First install the new filter and all hoses to it, in the reverse order of removal.

Note! Install the new filter so that the arrows located on it are directed towards the fuel pump! (For information about where the arrows are on the fuel filter, as well as the fuel pump itself, see at the very bottom of the article, in the “For Beginners!” section)

2) After completing the entire filter replacement operation, prime the fuel pump in the engine. (For information on how to prime the fuel pump in an engine, see the article “Priming the Fuel Pump”)

1. When working to remove the fuel filter, it is not allowed to smoke or use open flames near the car, because this can lead to a fire!
2. After you complete everything, check whether the fuel filter itself, as well as both hoses that are attached to it, are leaking!

Note! If you detect any gasoline leaks, immediately take the necessary measures to eliminate the cause of the leaks and remember that even the smallest leaks can lead to a fire in your car!

For newbies! Question: Where are the arrows on the filter that indicate it should be installed? Answer:

Question: Where is the fuel pump located in the engine? Answer:

Important points during work

You should always remember that even when the fuel pump is turned off, there is still fuel in the system, which will flow out through these hoses. It is for this simple reason that you should not smoke while doing work or illuminate yourself with a candle or match. It is advisable to take a 0.5–1.0 liter can with you to drain the remaining fuel.

If while driving you notice jerking at speed or weak engine thrust, then it is quite possible that it is time to change the filter. Before doing the work, you need to go to a car store and buy a new one for the VAZ-2110 model.

It is advisable to acquire keys for 10, 17, and also 19 and a head. All this will allow you to make the change more quickly and comfortably. Every driver must remember that there is a lot of pressure in the pipeline system, so you need to be extremely careful. Once again, it is worth noting that you need to purchase only a high-quality, original VAZ-2110 fuel filter. The price for it can be about 200 rubles.

Symptoms of a clogged fuel filter

A clogged fuel filter affects the operation of an injection engine slightly differently than a carburetor engine. Firstly, the injection engine itself requires more accurate supply and dosage. Secondly, the design of the fuel rail, and especially the injectors, can simply become clogged. And the impact of moisture particles and their corrosive consequences can cause more harm than in carburetor engines.

The main signs of a clogged fuel filter:

• deterioration of vehicle dynamics;
• depending on the degree of clogging, instability of operation at high or low speeds; difficult engine starting;
• signs of a lean mixture - popping noises in the air filter, dips during a sharp increase in speed;
• in some cases, deterioration or failure of the fuel pump.

But in any case, if the filter has already traveled more than 20 thousand, it is recommended to change it without waiting for the inevitable consequences.

Why do they replace?

As we noted, the filter serves to clean the fuel from all kinds of impurities. If you don't get rid of them, this can lead to sad consequences:

• The presence of resin impurities negatively affects the power supply to the motor;
• If condensation gets into the fuel, the corrosion process will begin inside the engine and its elements; in winter, problems may arise with starting the power unit, since water freezes in the fuel line;
• Impurities in the fuel affect power, which can drop noticeably if the filter is dirty.

By replacing this element in a timely manner, you can avoid a number of problems and breakdowns. The service life of the fuel filter depends on the load on the engine and vehicle, as well as on the quality of the fuel being poured.

Filter used

According to the operating manual, the fuel filter on the VAZ 2110 should be changed every 20 thousand kilometers. However, if the operating conditions of the machine are extreme and the quality of the fuel used leaves much to be desired, the cleaning element will have to be changed much more often.