Fuel filters for VAZ 2110–2112: do-it-yourself replacement

One of the car maintenance operations is replacing the VAZ 2110 fuel pump grid. The procedure is quite simple; you only need knowledge of the procedure for performing the work and a minimum set of several tools. Therefore, it is usually performed by car enthusiasts themselves, without the involvement of service station specialists.

When to replace

Such minor repairs are carried out as the grid becomes dirty, which happens quite quickly, given the quality of domestic fuel. The correct approach is to change all consumables at the same time, guided by the frequency of pouring new oil into the engine.

During this procedure, you can replace the air and oil filters, as well as the fuel pump mesh. If you make it a habit to change this mesh only after it is completely clogged, the pump will constantly work with increased load, as a result of which repair or even replacement of the VAZ 2110 fuel pump will quickly be required.

The first sign of a faulty fuel pump is the engine refuses to start. After turning on the ignition, you can hear a slight buzzing sound of the operating gasoline supply device, which stops after it creates the necessary fuel pressure in the system.

If after this the car engine does not start or even the sound of the VAZ 2110 pump cannot be heard, then you need to check the presence of gasoline pressure in the line. This is done using the bleed valve on the ramp. The verification procedure will be discussed below. If there is no fuel, it becomes clear that the fuel pump is not working or its screen is clogged.

Signs of a malfunction of the VAZ fuel pump: 2110, 2112

If one of the factors listed above is detected, check that the device is working properly. Get into the car and turn the ignition key so that all the instruments come on. Listen - when the fuel pump operates, a characteristic “pumping” sound (humming or squeaking) appears. Its presence indicates that the wires are connected correctly. Next, to take measurements, you will need a special pressure gauge with a hose (it is better to buy a ready-made kit right away).

The check is carried out using a ramp according to the following algorithm:

• turn on the instruments on the panel with the ignition key (do not start the car);
• find the ramp (located at the top of the internal combustion engine, under the receiver) and unscrew its cap;
• reduce the pressure (to avoid leaks during the diagnostic process);
• unscrew the spool valve in the fitting using a metal nipple (it can be temporarily removed from one of the wheels);
• install the hose into the fitting and secure it (for example, with a clamp);
• start the engine and measure the pressure with a pressure gauge.

A result within 3.8-4.0 kgf/cm² is considered normal (this is similar to 380-400 kPa). At the finish, turn off the car, bleed the air in the system and remove the hose from the fitting. Using the nipple, install the spool back and return the cap to its place.

If you are not confident in your skills, find a detailed video or consult a specialist.

The following signs may indicate the need to replace the fuel pump on a VAZ-2112:

• problems with the engine (trips, vibration, complete stop, difficult starting, decreased power and traction);
• absence of a specific sound from the pumping device (for injectors);
• traces of fuel leakage;
• clogged fuel filter or injectors;
• pressure regulator failure;
• sensor failures (throttle, air flow, oxygen level, etc.)

The need to replace the VAZ-2110 fuel pump is determined by the same factors that we cited above.

When purchasing parts, always pay attention to the standard one in order to buy the appropriate modification.]

Also, before purchasing, you must carefully inspect the case for cracks, roughness and other defects. If they are found, you cannot purchase such a spare part - there is a high risk of problems in the operation of the internal combustion engine.

Description of the work

The location of the VAZ 2110 injector fuel pump is in the gas tank located under the bottom of the car, in the area of ​​the rear seat. It is accessible from the cabin, so no inspection holes or other additional devices are required. Only tools needed:

• open-end wrench 13 and 17 mm;
• Phillips screwdriver;
• 7 mm tubular socket wrench.

Instead of a long 7 mm tubular wrench, you can use a small open-end wrench, but this will be inconvenient and take more time. Before starting repairs, you should completely remove and pull out the rear seat to gain access to the gas tank. Two more preliminary operations that are done in the engine compartment.

1. Loosen the nut securing it to the negative terminal of the battery, remove the clamp along with the wire.
2. Relieve pressure from the fuel line. At the end of the ramp, near the outer nozzles, there is a bleed valve with a rubber cap on it. Having removed it and substituted a plastic cup, you need to press the valve stem. Fuel will leak out from there and the pressure in the system will drop.

Under the bottom of the rear seat there is a square hatch that provides access to the gas tank; it will need to be removed. The subsequent disassembly diagram looks like this.

1. Using a Phillips screwdriver, unscrew the 2 screws securing the hatch cover, remove it and put it aside.
2. Disconnect the fuel pump electric drive connector and move it out of the way.
3. Using an open-end wrench, loosen and unscrew the 2 nuts that secure the fuel line pipes to the fuel pump fittings.
4. Pull the tubes out of their sockets. The round rubber rings attached to their ends must be removed and replaced with new ones, since they are designed for one-time use.
5. Using a long tubular wrench, unscrew the 8 nuts that hold the flat flange that presses the VAZ 2110 fuel pump to the bottom surface. Remove the flange from the studs.
6. There is a rubber gasket on the mounting studs under the clamping part of the body. The latter must be removed from the studs, otherwise it will not make it possible to pull out the fuel supply device. Then carefully remove the fuel pump from the tank cavity along with the float. If the rubber gasket is worn out, then it is better to replace it too.

What you need to work independently

You will need screwdrivers, wrenches, a vice, a 7-head, etc. When purchasing a new element, make sure that it fully matches the old one. Cars of the “tenth family” are equipped with different engines (carburetor, injector, 8 valves, 16 valves). Accordingly, injection systems are also different - be sure to check the correspondence tables, which are easy to find on the Internet.

If the unit is located in a tank, the fuel must be drained before the procedure. Don't forget to disconnect the “-” terminal on the battery to de-energize the car.

Pump operation and malfunctions

From the name you can understand that the fuel pump supplies fuel from the tank to the engine injectors. Accordingly, if the unit is faulty, then there will be no gasoline injection, and the power unit will not start working. There are options for injector and carburetor. The VAZ 2110 is equipped with an injector; therefore, the fuel pump must be suitable for this system. If the “ten” was modernized by installing a carburetor, then the unit will have to be taken out of stock. The unit is located in the fuel tank - under the left rear door, the electrics go under the rear row seats.

It is quite simple to understand that there are faults in the pump or its network:

• The car won't start. There are many reasons for this malfunction, but before performing a full diagnosis, you need to check whether the pump mesh is clogged or clogged.
• There are noticeable jerks in first gear. There are also many options here, but one of them is a non-working fuel pump.

Replacing a VAZ-2112 fuel pump - features of a car with 16 valves

In cars with such an engine, pressure is relieved by disconnecting the device in question and the pad. Then the internal combustion engine is started - it stalls. Try again twice. If the engine does not start the third time, the goal has been achieved. Disconnect the two tube tips by pressing the latches. Next, take the wrench (or extension) and put the cap on it. Unscrew the eight nuts securing the fuel pump to the tank. Remove the clamping ring.

When installing the mechanism in a 16-valve car, make sure that the cutout on the seal coincides with the protrusion on the cover. The tip is placed on the inlet pipe.

How to measure the pressure in the fuel system?

The easiest way to measure pressure is with a special device - a pressure gauge. The kit also includes an adapter and drain. Pressure can be determined using an air pressure gauge. This device is present in almost every motorist, as it is used to measure tire pressure. A normally functioning pump in a VAZ 2110 should have a reading of 2.8-3.2 atm. You need to connect the pressure gauge and check what the indicator is with the engine not running, but with the fuel pump on. It must be no lower than 2.8 atm.

Replacing the VAZ 2110 fuel pump filter is a pressing problem for many vehicle drivers today. In the event that a motorist drives with clogged filters, there is a very high probability that the fuel pump will simply break down and stop pumping fuel to the engine. For this reason, replacing a VAZ 2110 gas filter is an important and responsible matter.

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.

The effectiveness of the filter can be assessed by the quality of production and the properties of the paper. The best way is to disassemble the used filter. That is, we remove the used filter, saw it and see how and what it is made of. I've tested so many filters, but I've never seen anything better than the MAHLE KL83. There are no springs inside, the paper filters perfectly (black on the outside and light on the inside), the filter paper is not glued to the body (that is, no glue is used), but is pressed into liquid plastic, which, after cooling, ideally maintains the pitch between the corrugations. Aluminum body. I sawed ZOLEX, SCT and FILTRON. These MAHLE filters don't even hold a candle. The paper frays on them. But this is my purely personal opinion.

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.

But in the absence of Salyut oil filters, I installed BIG, since I had previously used them. Apparently, I ran into a fake, because after driving it for 2 thousand km, and when starting it in the morning, the pressure lamp began to go out a couple of seconds after the engine had already started. I found the Salyut, replaced it and everything went away. I still use the gasoline one - it’s BIG GB-320, and I bought Salyut one more time.

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

The process of replacing the fuel filter on a VAZ 2112 is quite simple and requires special skills and knowledge. If you follow the given instructions, everything will work out. It is worth paying special attention to the choice of fuel cell, since the operation of the engine depends on the quality of this part.

What is a fuel pump and how does it work?

Gasoline filter VAZ 2110

The VAZ fuel pump is an integral part of every car that has an internal combustion engine, so it must be kept in good condition. Usually the fuel pump breaks down in two cases: when the strainer is clogged (we will tell you how to replace it below) and when the car owner drives on an empty tank. In the first and second cases, the fuel pump operates at full capacity and wears out very much.

Note. Car owners are advised to develop the habit of driving on a half-empty tank, in which case the gas pump will last longer.

Gasoline filter for VAZ 2110

In older cars, the fuel pump is not used at all, so the problem of its breakdown does not arise, but, of course, other problems arise. In modern cars, the gas tank and engine are located on different parts of the car, and the gas pump pumps fuel from one part to the other. Types of fuel pumps in modern cars:

There are two types of engines: carburetor and injection engines, both types of these engines use different fuel pumps. A carburetor uses a mechanical fuel pump, and the fuel is usually delivered under slight pressure.

An injection engine, on the contrary, supplies fuel quickly and under high pressure and uses an electric type of gasoline pump (see Electric gasoline pump VAZ 2110 and all about it). The VAZ 2110 uses both carburetor and injection engines, it depends on the vehicle’s configuration.

Fuel pump filter VAZ 2110

These fuel pumps are mounted in different ways; the mechanical type of fuel pump is mounted on the fuel tank, and the electric fuel pump is located directly in the fuel tank. Also, there are VAZ 2110 configurations with two fuel pumps, the first is attached to the gas tank and operates at low volumes, and the second is located directly in the engine and operates at very large volumes. Electric fuel pumps work on the following principle: they push fuel into the engine and the speed at which the fuel is pushed depends on which engine is installed in the car. If the engine is powerful, then the fuel pushing speed will be high, but if the engine is weak enough, then the pushing speed will be lower.

Note. The speed at which electric fuel pumps push fuel is controlled by an electronic system installed on the vehicle.

Gasoline filter for VAZ 2110

On older cars, there is no electric fuel pump, and the fuel supply speed is not regulated in any way. Older fuel pumps deliver fuel to the engine at a constant rate, which prevents it from stalling. Electric fuel pumps are very, very noisy, which is why they are installed directly in the fuel tank. They heat up very quickly, but the fuel in the fuel tank cools the fuel pump and muffles unnecessary noise.

Signs of a clogged filter

By indirect signs you can determine whether it is dirty, but it is not always possible to reliably find out about its condition without visually assessing the mesh.

Signs of a dirty filter:

• The car accelerates poorly;
• There is no necessary dynamics;
• Unstable idle;
• The engine starts poorly and stalls;
• Increased engine vibrations;

Based on the signs already stated above, you should begin inspecting the fuel system and be sure to start with coarse and fine filters. You can read how to replace the fine filter here.

Also, if the mesh is very dirty, the fuel pump itself may fail. Therefore, it is not recommended to neglect its replacement.

Replacing the fuel pump filter

VAZ 2110 fuel pump filter

Now we finally come to the most important part, replacing the fuel pump filter. Replacing the fuel pump is usually done with your own hands and takes no more than thirty minutes.

• First you need to disconnect the wires from the battery (usually the wire with minus voltage is disconnected);
• Then we move into the car interior and remove the passenger seats, since the fuel pump is located directly under them (electric);
• When we finally see the fuel pump, we need to carefully remove two screws from it and lift the cover;
• We see the power supply; it must be turned off;
• Then we take out the entire fuel pump and unhook the filter from it;
• We install a new filter, carefully attaching it;
• We put the fuel pump back in its place.

That's all, a new filter for the fuel pump has been installed and we did it ourselves. A fuel pump filter usually does not cost too much and its maximum price is 200 or 500 rubles. If these instructions are not clear enough, you can watch a video or photo and figure it out.

Replacing the mesh on a VAZ 2110-VAZ 2112

Removal:

1) We talked about cars with a 1.5 liter engine above.

2) Now let's talk about 16-valve cars. Remove the pump, take a screwdriver and remove the retaining ring from the guide (often called the pin). There is only one ring, although there are two guides. It is removed as follows: pry it with a screwdriver and move it to the end of the guide in the direction of the blue arrow in the photo until it is completely removed. Now the main thing is not to turn the fuel pump over, otherwise the housing will fly out spontaneously and the hoses may break.

3) The photo below shows two blocks with wires; they need to be disconnected. If you pull with force and they do not give in, then you are doing something wrong and there is a possibility of breaking the clamps. Press the retaining clips and carefully remove them.

4) Grab the top of the fuel pump with your hand and separate the two housings along the guides. Put one housing aside, continue to hold the gas pump in your hands and use a screwdriver to disconnect the mesh. Remove it and replace with a new one.

Installation:

Proceed in the reverse order of removal. Make sure that the part is securely fixed; it should not fall off. We recommend that you take your time and do not install the fuel pump flap with the rear seat cushion, but rather ask an assistant to turn the key in the ignition for about 5 seconds, and you watch to see if gasoline flows from under the fuel pipes. The tightness of the system is mandatory; in case of malfunctions and leaks, replace worn parts with new ones.

Additional video: Attached below is a video using the example of a VAZ 2114 on the topic of today’s article, we recommend you watch it.

Note!

The video below shows the procedure for disconnecting the wire block; if you have difficulties with this, it is useful to watch:

Fuel coarse mesh in the fuel pump - why is it needed?

The initial cleaning of the fuel is ensured by a mesh mounted on the fuel pump body, and when the car begins to move jerkily and the fuel supply is difficult, first of all you should check the condition of this mesh, because it can be contaminated to such an extent that its initially snow-white color is very difficult to recognize.

Note! The main reason for grid contamination is poor fuel quality!

When to change the screen in the fuel pump?

In order to understand when it is necessary to replace a particular component in the fuel system, and specifically the grid, you need to know about the presence of pressure in the fuel rail. You can learn how to take measurements correctly from this article.

You can also find out about its insignificant condition by the following signs:

• a very prolonged and loud hum occurs . since gasoline is difficult to absorb into the system through a clogged mesh. This can significantly reduce the working life of the fuel pump itself and the contamination of the entire fuel system as a whole.
• While driving, when switching to third or fourth gear and then pressing the gas pedal, there is no increase in power .
• Also, a clogged mesh can cause a loss of speed while the car is moving . since the required amount of fuel simply does not enter the combustion chambers.

Electric fuel pump filter (mesh) VAZ-2108, 2110 (engine 1.5) (SOATE)

Both RRP prices (recommended retail price) or the one indicated below are available for ordering.

Characteristics Electric fuel pump filter (mesh) VAZ-2108, 2110 (engine 1.5) (SOATE)

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