Malfunctions of mufflers on VAZ 2114/2115, methods of repair and replacement

In the terminology of car mechanics and drivers, the word muffler most often means the entire complex of pipes and chambers that make up the exhaust system of a modern car, hence the expression - muffler resonator.

However, this is not the case. The exhaust system of the VAZ 2114 consists of four components:

• the exhaust pipe, it is attached directly to the exhaust manifold, takes on all the main fire, chemical and vibration impacts from the exhaust gases and is therefore made only from alloyed, high-strength steel
• a catalyst, it is needed to burn excess oxygen in its chambers, which are made in the form of ceramic honeycombs, the surface of which is covered with a platinum-iridium film, upon contact with which oxidation and afterburning reaction occur and reduce the level of toxicity of passing gases
• resonator, in some sources it is called an additional muffler, but this is not a designation accepted in professional circles
• The muffler acts as residual sound absorption and removes toxic exhaust gases outside the car body

Sports resonator VAZ 2114

Design and purpose of the exhaust gas system

The gas exhaust system of the VAZ 2114 consists of various functional parts. Folding into one solid chain, it contributes to the normal operation of the car. The system regulates the release of harmful chemicals concentrated in exhaust gases into the surrounding atmosphere. Schematically, this system looks like this, as shown in Fig. 1. The exhaust system of the car model in question includes the following main functional components.

1. Exhaust manifold VAZ 2114. Serves to combine gas flows emanating from each cylinder into one common pipe. To withstand increased dynamic loads, the collector is equipped with the most rigid and durable fastening.
2. Catalyst. This component of the system significantly reduces the level of toxicity of exhaust gases. To do this, highly toxic emissions are converted into less toxic gas impurities using a chemical reaction.
3. Reception pipe. Designed to connect the VAZ 2114 exhaust manifold and the catalyst.
4. Resonator. By means of several “acoustic mirrors” built into the body, it reduces the level of noise that occurs during strong exhaust.
5. Silencers. Even more than the resonator, they enhance the noise absorption of the entire exhaust system of the VAZ 2114.
6. Corrugation. Thanks to its elastic structure, it suppresses vibration transmitted from the engine to the exhaust system.

How to change the resonator on a Priora

It is most convenient to carry out this car repair in an inspection hole, a lift, or raise it high enough on a jack. After which we immediately apply penetrating lubricant to all threaded connections that will need to be unscrewed.

Particular attention should be paid to the connection to the collector, since this is where you have to suffer. First, carefully try to remove the fastening nuts with a wrench:

If the nuts do not budge, which is what most often happens, you need to move them out of place using a chisel. It will look like this.

Try again using the key. If the nut still does not give in, you need to cut it off with a chisel, acting extremely carefully so as not to damage the stud. The resulting result will be approximately the same as shown in the photo below.

When you have dealt with all the nuts, you can move one edge of the resonator to the side.

Now we move to the opposite side, where it is attached to the muffler. Unscrew the nuts of the tie clamp.

We take it to the side so that it doesn’t get in the way:

If two parts of the exhaust system are stuck to each other, you can separate them by lightly hitting the joint with a hammer, but without force.

Types of car mufflers

Modern car mufflers are mostly divided into 3 types - stainless steel, aluminized steel and direct-flow (sports). The muffler for a VAZ, made of especially durable stainless steel, is one of the most common types.

It has gained such great popularity among motorists due to the simplicity of the material from which it is made, and, accordingly, the relative cheapness of the device itself. This type of muffler seems to be almost universal, as it is suitable for many other brands of cars. Moreover, wherever stainless steel mufflers are installed, they effectively perform their functions.

Devices made of aluminized steel have a higher cost. Nevertheless, it is often more profitable to install them than cheaper analogues, since their guaranteed service life is 7-10 years longer. However, due to their high cost, aluminized mufflers are usually made to order.

The VAZ 2114 sports (direct-flow) muffler is used mainly for technical modifications of the car in order to give it additional speed characteristics. This device, also made of stainless steel, is used on cars for sports (racing) purposes.

Exhaust system malfunctions and their elimination

Due to increased pressure and very high temperatures due to intense fuel combustion, the muffler quite often fails. The level of performance of individual elements and the entire exhaust gas system of the VAZ 2114 is significantly affected by the following unfavorable technological factors:

• rapid heating to very high temperatures and possible overheating of the exhaust system;
• frequent sharp fluctuations in temperature - from heating to rapid cooling;
• permanent vibration during engine operation;
• frequent impacts and mechanical damage to the VAZ muffler;
• frequent pollution;
• scratches and chips caused by small hard particles of the road surface;
• development of internal and external corrosion;
• lack of means that effectively protect the metal surfaces of the VAZ 2114 exhaust system.

All of these factors, to one degree or another, affect the safety and performance of the exhaust unit. If the integrity is broken in any place, a gas flow immediately rushes into the resulting fracture or fistula. Due to its speed and pressure, it quickly expands the emergency hole. And then the malfunction makes itself felt - the system begins to loudly “growl” and clap, exhaust gases come out at the wrong point, and the muffler knocks. In such conditions, it becomes almost impossible to operate the car.

It should be borne in mind that in addition to loud and sharp bangs, defects in the exhaust system of the VAZ 2114 can also affect the operating mode of the engine itself. Therefore, in some cases it will be necessary to carry out repairs of system elements, thanks to which you can temporarily do without completely replacing the entire assembly.

Diagnosis of breakdowns, which precedes restoration operations, is facilitated by the fact that the occurrence of defects is usually accompanied by an unpleasant strong grinding and roaring sound under the car bottom. The owner of the car remains to carefully examine the entire chain and determine the location and nature of the malfunction. Most often, breakdowns occur in the following components.

1. Lambda probe. It is an electronic sensor that analyzes the composition of emitted gases in order to ensure optimal combustion of automobile fuel. As a rule, after 100 thousand kilometers of the car, the metal analyzers included in the sensor lose their working properties. Usually in this case, the exhausted lambda probe is not repaired, but replaced with a new one.

1. Corrugation. Its elastic hose, taking on engine vibration, stretches over time due to such mechanical vibrations, which negatively affects the mitigation of shaking. If the old corrugation fails, simply replace it with a new one.
2. Resonator. This element of the VAZ 2114 exhaust system can periodically burn out under the influence of high temperatures of fuel combustion. Most often this is the result of using a product made of low-quality thin stainless steel. The best way to fix the problem is to replace the burnt element with a new one. However, as a temporary measure, it is also possible to weld the burnout area with a special electrode.
3. Connecting gaskets. A sign of their failure is the appearance of strong vibration in the exhaust system area when the engine is running. To eliminate loud rattling, most often it is enough to simply replace the gaskets.

How to repair a silencer with your own hands

VAZ 21124 exhaust system

The muffler on the “fourteenth” and “fifteenth” is considered one of the most vulnerable points of the car. The fact is that due to exposure to high temperatures, the metal quickly burns out, that is, the tightness of the system is broken. Therefore, the part must be changed as soon as there is a suspicion that it is not working.

Reasons for failure

Most often, mufflers “burn out” - that is, due to hot exhaust, the metal inside the housing begins to thin out, which ultimately leads to the appearance of holes. However, this is not the only reason why the silencer may fail:

• using a homemade device - handicraft products do not differ in quality and long service life;
• mechanical shocks from uneven roads - dents and deformations of the pipe also lead to loss of tightness;
• Rust and corrosion sooner or later affects even the highest quality original mufflers.

In general, all of these factors influence service life to some extent. The car owner can easily identify all of the above faults - just drive the VAZ into the inspection hole and visually examine the muffler. In addition, when deformations, burnouts and corrosion reach their “peak”, the part will begin to make characteristic sounds when moving - gurgling, sharp pops, knocking.

Why is the muffler knocking?

This part on the VAZ 2114/2115 can make knocking noises only in two cases:

• it hits the body;
• When moving, it touches the gas tank housing.

In any case, it is necessary to immediately take measures to eliminate this malfunction. Most often, the problem lies in severe wear of the rubber suspensions. It is enough to change them and the muffler will again return to its normal position under the bottom of the car.

In some cases, the silencer begins to knock when its elements have been installed incorrectly - for example, after replacing the resonator or exhaust pipe. In this case, you will need to double-check that all fasteners and gaskets are installed correctly.

What to do if the plug is clogged

During vehicle operation, dirt, soot, fuel impurities and other sediments will inevitably accumulate in the exhaust system pipes. Gradually, they will settle on the walls of the muffler and clog its working space.

The driver can notice this only by the behavior of his car:

1. At first, it will be difficult to gain speed when overtaking.
2. Then, even with uniform movement, the car will have difficulty maintaining the set speed limit.
3. Black exhaust from the pipe, loss of engine dynamics.

Cleaning the muffler is a tedious and time-consuming procedure. In addition, if the pipes are clogged, then, most likely, after cleaning, other defects will be revealed - such as rust or burnouts. Therefore, it is more advisable to simply install a new one.

Thermal insulation is completely burnt out

The car owner needs to carefully ensure that the resonator coating is always sealed. The barrel is covered with special thermal insulation materials, which sooner or later burn out during the operation of the machine. If you do not change the insulation in time, you will soon have to change the muffler itself.

To do this, the pipes are dismantled from under the car and separated in parts. A special heat-resistant cloth is glued to the surface, which can be purchased at any auto store. Such protection will ensure a longer service life and significantly reduce the noise of the motor.

What is the VAZ 2115 exhaust system and how to replace the muffler

Diagnostics and replacement

The exhaust gas system of the VAZ 2114 signals problems with extraneous noise. If the muffler is knocking, it means that there is most likely a crack in it. It is worth noting that the volume of noise directly depends on engine speed and load on it. Such a malfunction can be eliminated either by replacing the damaged part or by welding. Experts recommend the first option.

Replacing a muffler begins with carefully selecting a new exhaust system kit. It is strongly recommended to use only original samples from the manufacturer. Otherwise, if for some reason a muffler was chosen on a VAZ of a different design, different from the original, the car owner will have to re-adjust the power system.

After the VAZ 2114 muffler has been purchased, the car must be installed on an inspection pit (overpass). The bolts connecting the crimp coupling should be moistened with a special process fluid, type WD. If you don't have it on hand, you can use motor oil or brake fluid.

This will make it possible to eliminate coking of threaded connections and relatively easily, using wrenches, dismantle the VAZ muffler. Then you need to remove the ferrule and the O-ring. After this, all that remains is to remove the muffler from the special rubber pads and remove it from the system.

Installation and fastening of a new element to replace the old one is carried out in the reverse order. After completing the entire operation, you should turn on the car engine and check whether the muffler is knocking or not.

Algorithm

We must drive the car onto a viewing hole or a stationary overpass; We turn off the engine, squeeze the handbrake, wedge the wheels with boots or put it in first gear, you can choose any option; Let the exhaust system cool down a little, as it heats up under the influence of exhaust gases. You can easily burn your fingers. We always carry out all work wearing gloves. After making sure that the pipes have cooled down, using capes we unscrew the connecting clamps between the muffler and the resonator, otherwise known as the secondary muffler. From the rubber clamp-holder, remove the hook with which it secures the muffler to the bottom of the car; There will be an O-ring between the connections, be careful not to damage or lose it. Carry out visual diagnostics and replace with a new one if necessary. As a rule, the negative impact affects a short service life; Having removed the muffler, we put it aside so that it does not interfere with the process. We pre-lubricate the new ring with heat-resistant sealant, in this way we extend the service life; Install the system components in reverse order. After installation, be sure to start the engine and test the system

Pay attention to ensure that there are no gas leaks, otherwise your work will be down the drain. If everything is fine, you can continue on your way. If not, eliminate the shortcomings.

Schematically the exhaust system looks like this:

A flow of gases emerges from the combustion chamber through the exhaust manifold, exhaust pipe, neutralizer, resonator, and the muffler itself. A weak point or “sore” is also
the burnout of the gasket
between the cylinder head and the exhaust manifold. Despite the tight pressure around the perimeter with the help of four stud bolts. The asbestos gasket still burns out, and the engine emits an unpleasant and loud sound. Modern cars, including the VAZ 2115, use a neutralizer to significantly reduce emissions into the atmosphere, these are oxides of nitrogen, carbon, and hydrocarbons. Structurally, it consists of two parts with catalysts made of platinum and palladium. Passing through these plates, gases react, resulting in a low-toxic oxide, the harmfulness of which to the environment is minimal. According to experts, purification is about 85-95%.

Monitoring the performance of the neutralizer

carries out an oxygen sensor that scans the content of lead oxide in the gas environment. Cars equipped with such a device are strictly prohibited from using leaded fuel. Faulty ignition or incorrect adjustment can cause premature failure of the converter. Unburnt gasoline coats the ceramic plates, which makes it difficult for gases to flow out and clogs the system. The first sign may be a sudden loss of engine power. Accordingly, repair or maintenance work is just around the corner. With this discussion of the topic, the exhaust system on the VAZ 2115 is finished. Let's hope that our tips and recommendations will help many drivers gain experience and help them quickly find the source of the breakdown.

Exhaust system tuning

Currently, many motorists who prefer to use tuning to improve the technical characteristics of their cars are actively interested in installing direct-flow exhaust systems for the VAZ 2114. Thanks to the use of such an option, the power of the car’s power unit can be significantly increased. Installation of direct flow is a separate element of boosting a car engine.

The direct-flow process is based on the acceleration of the release of exhaust gases from the exhaust pipes in the absence of any significant resistance to their movement. By creating a vacuum in the exhaust system, the gases even more strongly draw new portions of exhaust from the engine combustion chamber, which, in turn, leads to an accelerated entry of new fuel into the cylinders.

Due to this increase in the speed of the process, the power of the power plant increases. At the same time, a direct-flow automobile muffler creates a resistance that is only 10% greater than the corresponding indicator of an exhaust unit that does not have a muffler at all.

For comparison: the same resistance value in a standard return flow muffler reaches 70%. By equipping the VAZ 2114 exhaust system with a special direct-flow muffler, you can increase engine power by 5-7%. Moreover, this is achieved even without changing the design of the fuel system, which requires a lot of money.

It should be borne in mind that additional reconstruction of the exhaust system cannot be taken lightly. If you decide to do tuning yourself, then only if you have the appropriate skills and practical experience. If there is none of this, it is better to seek help from specialists.

The exhaust system, despite its relative simplicity and, at first glance, functional secondary importance, is an important link in the operation of the car. Without it, efficient and safe operation of the machine is virtually impossible.

You've probably heard such a slang and quite common word among car enthusiasts as VAZ 2114 pants. If you have no idea what it is, then everything is simple, it's just the exhaust pipe of the exhaust manifold.

The product is used to remove exhaust gases directly from the internal combustion engine. And it got its original name for the shape of the structure (one end of the pipe has a split and closer to the opposite edge smoothly flows into a single pipe) with the shape of the pants. This is how the popular name “clung” to the product.

From a design and reliability point of view, the most vulnerable point in the exhaust pipe is the sealing gasket at its connection to the manifold. Over time, the insulating element simply burns out or becomes deformed from exposure to high temperatures, especially since the thickness of the gasket metal is quite small.

Main options for resonator malfunction

Stable operation of the resonator ensures proper operation of the car engine. Like all elements and parts of a machine, the resonator is susceptible to failure. In order to avoid operational problems and unexpected breakdowns, regular maintenance and attention to the exhaust system is necessary. The operation of the resonator can be influenced by factors such as:

• general worn condition of the catalyst;
• muffler contamination;
• pipe diameter size.

The resulting metallic vibrating sound may indicate a breakdown of the internal elements of the resonator. For example, loosening one of the cameras. Insufficient motor power during operation occurs when the resonator is completely damaged.

Symptoms of a problem

The main sign indicating possible problems with the gasket of the VAZ 2114 pants is a changed sound (bass) from the exhaust pipe when the engine is running. When an element wears out, you will immediately hear and identify disturbances in the operation of the exhaust system. This will increase the noise level and exhaust sound. However, it is worth understanding that such signs may indicate failure of other components of the exhaust system (for example, the resonator). To accurately determine the possible causes, conduct a thorough diagnosis.

Fault diagnosis

To determine operational problems, you should start the car engine. It is best to carry out the activities together, so that one person sits in the driver’s seat and, at the command of the second, increases the operating speed of the engine. The second person should be located in the inspection hole or under the overpass exactly under the bottom of the car. When the speed increases, you need to carefully inspect the entire exhaust system line, record the source of increased noise and possible leakage of exhaust gases. If you have decided to replace the problem unit, read below for instructions on how to change pants on a VAZ 2114.

What's the result?

Taking into account the above information, it becomes clear that on the VAZ 2114 the exhaust system is not particularly complex in design. We also note that if you need to replace a VAZ 2114 muffler, the price of new system elements (both original and analogues) is at a completely acceptable level.

As for replacement and repair, all the work can be done with your own hands in a regular garage. If you have a welding machine and experience in performing welding work, then the entire system can be comprehensively repaired without the need to visit service stations or auto repair shops.

The main thing is that when choosing exhaust system parts (especially among analogues), you should pay attention and purchase only aluminized mufflers, which are the best solution in terms of quality and price. It is also advisable to study in advance the reviews of car enthusiasts for a particular brand and manufacturer before purchasing.

This will allow you to buy a muffler that is most durable in terms of service life.

Causes of breakdowns of the VAZ2114 exhaust pipe

Since the unit is attached directly under the bottom of the car, and our Russian roads leave little to be desired, the most common occurrence is driving into a hole (even worse if it is hidden under a puddle) with subsequent damage to both the exhaust pipe itself and the place where it connects to the muffler. The second most common reason is the vulnerability of the gasket itself. The fact is that it is constantly exposed to a strong influence of hot exhaust gases, therefore, in an aggressive environment, the destruction of the product (burnout) accelerates. “Please note that if you have diagnosed wear or damage directly on the pipe itself, you should replace not only the unit that is damaged, but also the sealing gasket. This approach will ensure the best durability and wear resistance of the entire pipe section, and the old gasket will not become a bottleneck in the entire exhaust pipe.”

Removing and installing the catalyst

Removing and installing a catalytic converter on a VAZ 2115 is a relatively simple task. The procedure itself is carried out in several stages:

1. Using keys “17”, unscrew the fastening of the catalyst to the exhaust pipe of the exhaust manifold. We take out the bolts and spring washers;

2. Place a suitable stand under the catalyst. The fact is that the catalyst on the VAZ 2115 car is not fixed with the help of any rubber hangers, and therefore, in order for it not to fall on your head, after unscrewing the fastening bolts, it must be secured somehow. This can be done either by installing a stand under it, or by temporarily securing it with wire;

3. Now unscrew the catalyst from the inlet pipe of the additional muffler and carefully remove it.

We install the new catalyst in the reverse order.

Replacing pants on a VAZ 2114

The optimal conditions for repair work will be an inspection hole, an overpass or a special lift. To work you will need:

• head and key at “13”;
• long collar;
• a flat-head screwdriver (preferably a long one).

Below is a sequential action plan:

1. First of all, we move under the bottom of the car and unscrew the muffler. To do this, take the head and a 13mm wrench and unscrew the fastening hooks. Carefully move part of the muffler down.

2. Now we are faced with the next task - to unscrew all four nuts securing the exhaust pipe to the exhaust manifold. We unscrew them counterclockwise. After the last fastener is unscrewed and the pipe can be moved freely, disconnect the lambda probe sensor connector from its body.

3. At the third stage, we disconnect, remove and pull the exhaust pipe out.
4. Using a long, flat screwdriver, pry up the old sealing gasket and remove it from the studs. We install a new one.

5. We attach the pipe back. We tighten the 4 mounting bolts and tighten them.
6. We connect and secure the muffler to the pipe.

This completes the replacement of the VAZ 2114 exhaust pipe.

When replacing pants, do not reuse the old metal fastening nuts, as it will be very difficult to remove them later. It is best to use copper or bronze parts!

Every car exhaust system has a muffler, and for many car enthusiasts its purpose is obvious. Driving around the city with a loud and toxic exhaust will be uncomfortable, and fines for exceeding the permissible noise level and harmful emissions from the operation of the car today are quite large. When operating VAZ cars, the muffler is often not given due attention, although it is useful to know how to correctly diagnose the degree of its wear. Timely replacement of the damper is mandatory, since its malfunction can pose a threat to human health and the operation of the car engine.

Replacing the resonator yourself

Exhaust system Lada Kalina sedan
To remove the resonator (additional muffler) you will need: two keys for “17” and two keys for “13”. Before dismantling, it is advisable to treat all fastening joints with a rust-dissolving agent. For example, it could be the popular WD-40.

First of all, we unscrew the clamp through which the additional muffler is connected to the main one. This process was described in more detail a little higher. Now we place some kind of stand under the catalytic converter so that after disconnecting the resonator, the catalyst does not sag and is damaged.

Now, using keys “17”, unscrew the bolts securing the additional muffler to the catalyst. Pull out the bolts and remove the additional muffler.

Installation of a new resonator is carried out in the following order:

1. When installing a new additional muffler, first fix it on the catalytic converter side. To do this, insert the bolts and tighten the nuts with several turns of thread.

2. Next, we connect the main muffler with the additional one. At the same time, we install a new graphite ring-spacer between them. It is imperative to check the tightness of the graphite gasket.

3. Place a new clamp at the connection point, and then completely tighten the bolts securing the resonator to the catalyst.

Silencer - purpose, device, operation

An important element of the exhaust system is the muffler; operating a car without it is impossible. As a rule, the muffler is located at the rear of the vehicle and, in conjunction with the exhaust system, serves to remove harmful gases from the engine, bypassing the vehicle interior.

Car mufflers are made from stainless, aluminized and regular black steel. Stainless steel “silencers” are practically not available for sale due to their high cost and long service life (their service life is 10–15 years). Aluminized mufflers are installed on VAZ 2114/2115. They are common in the domestic and European markets (service life 3–7 years). Regular black steel mufflers are cheap substitutes and last only a few months, so are rarely used.

What is a “glushak” for?

Main functions of the muffler:

• reduction of noise during fuel processing;
• reduction in the rate of gas release and their temperature.

The muffler is attached with special rubber pads to curved metal hooks, softening vibrations from the car exhaust

All elements of the exhaust system are exposed to high temperatures, so the coating (anti-corrosion paint, mastic) that is applied to the muffler burns out. The exhaust system of the VAZ 2114/2115 is mounted under the body on the bottom of the car.

An additional muffler or, in other words, a resonator is designed to eject burnt gas into the exhaust pipe and receive the next portion.

The resonator is an important part of the exhaust system; it directly affects engine power. The faster the exhaust gas is removed from the resonator, the faster and more power the car develops.

The design of the pipe consists of all the necessary elements, therefore, when exhausted, the exhaust gas is correctly distributed throughout the exhaust pipe

The muffler on the VAZ 2114/2115 is attached to the bottom of the car with special rubber bands, clinging to flat hooks on the side and top. Why is an elastic band used, and, say, not a metal fastener?

As exhaust gases pass through the exhaust pipe, vibrations intensify, the muffler begins to vibrate, and if the mount is solid-state, the vibration will be transmitted to the cabin. The rubber muffler mount softens vibrations and is therefore used on all cars.

For the VAZ 2114/2115, the muffler is a volumetric sealed metal chamber, divided inside by various partitions. The entire exhaust gas flow passes through the muffler sections and is finally extinguished and cleaned. If you look at the muffler diagram, it will look almost the same on all cars.

The principle of removing exhaust gases from a car muffler

Why is a muffler resonator needed in a car?

After ignition occurs, gases enter the intake manifold, and then into the muffler pipes.
The resonator performs the function of reducing vehicle noise. The second, but no less important function is environmental. The resonator acts as a filter element. The operation of the exhaust system and its sound directly depend on the type, shape and size of the resonator. Failure of this part can lead to loud noise when the car engine is running, especially when the accelerator pedal is actively used, increasing engine speed.

In addition, the unpleasant smell of exhaust gases will begin to penetrate into the cabin.

Resonator device

Many car enthusiasts call the resonator a small muffler. This is explained by external features, namely the similarity with the main muffler.

Structurally, the resonator consists of a large number of layers, each of which has its own purpose. Gas entering the resonator passes through the reflectors. Thus, hot gas particles are quenched against them, dividing into two streams. In addition, the inside of the resonator is divided into two sections. A special mesh is used for this. It divides the frequency of vibrations and dampens them using friction

It is important that there is uniform pressure distribution inside the resonator so that resistance does not arise. This will ensure stable operation of the internal combustion engine, maintaining the required speed level

Types of resonators

There are two types of resonators - for two-stroke or four-stroke engines. Photo: Minsk.deal.by

There is an opinion that a resonator installed on a four-stroke engine does not provide any benefit, but only reduces the power and overall efficiency of the engine. If you remove the resonator from the exhaust system of a four-stroke engine, its power will increase by up to 15 percent. However, for the environment, such a solution will not be an advantage at all.

Installing a resonator on the exhaust system of a two-stroke engine, on the contrary, has a positive effect. Without a resonator, such an engine will consume more fuel.

Replacing the muffler on a VAZ 2114/2115

Muffler failure on a car can happen for various reasons:

• mechanical damage;
• influence of atmospheric and mud precipitation;
• burnout of the internal elements and walls of the muffler.

Signs of a malfunction most often manifest themselves in increased exhaust sound: the car is very loud, rumbles, an abundance of exhaust gases appears from under the car in the muffler area and the smell of unrefined fuel.

How to change the "glushak" with your own hands

In many cases, the muffler cannot be repaired and requires urgent replacement. This is not as difficult to do as it seems. You will need:

• new muffler + repair kit (rubber cushions, corrugation, metal-graphite ring installed under a clamp at the junction of the pipes of the additional and main mufflers);
• tools;
• portable lamp;
• inspection hole or jack;
• two hours of free time;
• hands growing from the right place.

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Do you want to inexpensively buy and replace a muffler resonator for a VAZ 2115? "MSK Silencer" - urgent replacement of Lada 2115 resonators with a 1-year warranty.

What is a muffler resonator?

The resonator is a closed metal module with perforated partitions, the main function of which is to slow down the speed and reduce the pressure of the exhaust gases.

As a result, acoustic pollution of the surrounding space is reduced. The resonator chambers are offset relative to each other, which makes it possible to level out strong gas pulsations, increasing the service life of the exhaust system and the engine as a whole.

Causes and symptoms of VAZ 2115 resonator failure

The main reason for the failure of the resonator is a heavy load on the infrastructure from the inside (high temperatures and pressure) with the influence of external factors (moisture, reagents, cold, etc.) from the outside.

Being under such a double attack, this device often fails, which requires qualified repair work. A malfunction of the muffler resonator can be determined by the following symptoms:

• increased noise when the engine is running;
• metallic rattling in the corresponding section of the exhaust system;
• reduction in engine power due to strong pulsation of exhaust gases

If you want to know how much it costs to replace a resonator, check out our price list published on this website. It is worth noting that repair work in this category can often be complicated by the presence of other exhaust system faults discovered during the preliminary diagnostics.

We are ready to eliminate any defects by purchasing the necessary parts ourselves. As a result, you will receive a car with a fully functional muffler, the characteristics of which correspond to the standard parameters.

“Doctor Silencer” is a network of specialized service stations for professional replacement of VAZ 2115 resonators. Service stations are located in all districts of St. Petersburg.

Signs of a resonator malfunction: decreased engine power, unusual sounds (popping, ringing) under the body, the smell of exhaust gases in the cabin. It is possible to repair the resonator if the areas of damage (burnouts, cracks, corrosion) are small. But more often a faulty resonator has to be replaced.

We offer options for replacing the Lada 2115 resonator:

• replacement with a new standard resonator,
• replacement with a new universal resonator.

It is profitable to replace the VAZ 2115 resonator with us:

• Experienced, competent mechanics and professional diagnostic equipment will quickly diagnose and determine the cause of the resonator malfunction.
• Careful replacement, welding in neutral gases followed by anti-corrosion treatment.
• If necessary, we will replace the exhaust system hangers.

By contacting us to replace the resonator, you will receive correct operation of the exhaust system for a long time at a low price.

Replacing a muffler on a VAZ 2115 is not at all as simple as some people think. This will require time and a lot of money. But you can always independently carry out such a pleasant procedure as replacing the muffler of a VAZ 2115. The owner himself will decide what type of this part to install and will monitor the process with his own eyes. The muffler is one of the car parts that attracts the most attention. Although it is located under the car, being the main element of the exhaust gas cleaning system, a lot of effort and time is devoted to tuning it.

Repair of muffler VAZ 2114/2115

Before replacing the muffler, it is necessary to inspect it for damage. In some cases, you can get by with minor repairs and not spend money on buying a new part. Restoring the performance of the muffler is carried out according to the following algorithm:

1. The muffler and weld seams are cleaned with emery cloth.
2. The entire part is inspected for cracks, burns, and damage.
3. If a defect is detected, use semi-automatic welding and weld the cracks. A metal plate with a thickness of at least 1.5 millimeters can be welded onto the burnout areas. Seal small cracks with high-temperature sealant.

All working areas must be sanded for a better result.

Welding is used if the muffler metal is strong enough. The seams are welded in a thick layer to avoid background and new burnout.

Video: how to install a “glushak” in a garage

Reasons for part failure

The muffler is affected by several different factors that can lead to failure, these are:

• Atmospheric precipitation, dirt. Precipitation means the occurrence of rain and snow. A mass that periodically falls on a hot pipe causes temperature changes, destroying the strength of the metal. Unfortunately, it will not be possible to protect the muffler in any way; moisture will in any case affect the metal. A smart solution would be to avoid driving through deep puddles and drive slowly on contaminated sections of the road. If the muffler and pipe are dirty, it is necessary to clean it with water (you can use a pressure jet from a hose). After cleaning, it is recommended to start the engine so that any water that has entered the muffler evaporates.
• Condensate. When the unit is idle for a long time, condensation forms in the muffler, causing a corrosive process. This leads to inevitable destruction of the internal parts of the muffler. This happens extremely rarely, but before the trip it is recommended to increase the operating speed by pressing the accelerator several times. The flow of exhaust gases removes moisture from the silencer.
• Chemical influence. As a result of the release of exhaust gas, a lot of toxic chemical particles settle on the walls of the muffler, destroying the metal, and allowing road reagents to get into the muffler.
• Physical influence. Hitting stones and blows from the muffler when driving on roads also lead to a lot of damage.

The chemical and physical effect on the muffler metal is a natural process. It will not be possible to disassemble and clean the muffler, since the container cannot be opened, and only the attention and professionalism of the driver on the road will help protect it from impacts and stones. Diagnosing and repairing minor damage at the initial stage will help avoid serious problems in the future.

The influence of various negative factors can lead to damage to the corrugation or other parts of the muffler

Extraneous sounds in the jammer

The causes of various noises and knocks in the muffler can be:

• Fastening the muffler to wire or ties. You should not wrap the muffler on a wire, otherwise rattling and knocking will occur. Use only rubber cushions.
• Foreign objects entering through the exhaust pipe. When driving over rough terrain, deep puddles, or driving in reverse, you should not forget that the exhaust pipe is literally 20 cm from the road surface, which means that various masses and stones can be thrown into the muffler. They often knock and rattle.
• Peeling of burnt metal inside the muffler. As a result of chemical exposure, a layer of soot forms on the walls of the silencer. For this reason, over the years, rattling noises can be heard inside the muffler due to peeling metal.
• Condensation also affects the exhaust sound. Condensation forms as a result of prolonged idling while the engine warms up. Ringing and gurgling are signs of accumulated moisture in the muffler. By increasing the speed several times, the condensate comes out and the signs of the malfunction disappear.

These points are possible factors influencing the exhaust sound of a muffler and are considered the most common.

Repairing and replacing the muffler on a VAZ 2114/2115 is available to every car enthusiast; the only question is confidence and time. It is easy to replace an old part with a new one if you have the tools at hand, but it is recommended to entrust the troubleshooting of the muffler to professionals. Any auto repair shop does this type of work. For little money and a short period of time, your muffler will be repaired. Remember, prevention is a reliable method of treatment!