Self-repair of the Lada-Kalina exhaust system

The very first part of the Priora exhaust system that needs to be replaced is the muffler. It burns out faster and more often, and only after it can it come to the resonator.

In practice, for many car owners, the factory muffler may well last up to 5-7 years or up to 100,000 km. This is considered to be a very good indicator and quite a decent service life. If we look at the exhaust parts already purchased at the store, they are unlikely to last even half the life that the factory parts lasted.

In order to replace the muffler on a Priora, you will need the following tool:

1. 13 mm head
2. 13mm socket wrench
3. Ratchet or crank
4. Penetrating lubricant
5. Hammer (if necessary)

How to replace a muffler on a Priora

You will need : drive the car into the inspection hole, prepare tools (13mm socket, 13mm wrench, mounting blade).
Removing the Priora muffler:

1. Unscrew the nut of the bolt securing the clamp that connects the pipes of the additional and main mufflers, using a 13mm socket. Using the same tool, we hold the bolt on the other side from turning.
2. Remove the clamp by loosening the nut of the other clamp mounting bolt.
3. Remove the O-ring by pulling the muffler back and moving it to the side.

To release the Priora muffler mount:

1. Remove the muffler bracket from the hole in the front cushion by prying it with a mounting spade.
2. Remove the muffler bracket from the hole in the rear cushion, pry it up with a mounting blade and lean on the muffler pipe.
3. Remove the main muffler.

Installation of the muffler on the Priora is carried out in the reverse order, after first replacing the rubber muffler cushions (gingerbread) with new ones. Finally, we rock the muffler and check that it does not touch the body or fuel tank.

Resonator installation

Installation of the part is carried out in the reverse order. Compliance with the required sequence, as well as the use of the original resonator for the Lada Priora, ensures simple, easy installation of the part

Particular attention must be paid to connecting the new resonator to the muffler pipe. It is recommended to replace the special metal sealing ring between these components, as well as the clamp itself, with new ones in order to ensure the required level of sealing of the connection, reliability and rigidity of the structure

The fastening elements are clamped sequentially, without distortions in the level of the resonator and muffler pipes.

The Lada Priora resonator in the exhaust system is located, as a rule, after the collector pipe (pants) or after the catalyst

On the Lada-Priora car, it is recommended to install a resonator, which is made from stainless steel options. This circumstance allows you to significantly increase the service life of this part. Installation of such a resonator is carried out on its standard mount and no additional modifications or improvements are required in the exhaust system of the car.

Experts do not advise trying to install resonators that are intended for use on other car models. For example, you should not try to install a resonator from the domestic brand Lada-Kalina on a Lada-Priora. This is due to a number of reasons that will subsequently have a negative impact on the technical and operational characteristics of the car, and such a replacement will only turn into a waste of money, time and effort.

When installing resonators from other cars on the Lada-Priora, extraneous noise and unwanted vibration may be observed when the engine is running, which is caused by defects in the bends of the shape and size, as well as differences in the fastening of the part to the suspensions of the car body. All these points are determined by the relevant norms and standards at the manufacturer.

The main advantages of the part include:

• reduced exhaust noise compared to factory;
• the thickness of the partitions is 2.0 mm;
• integrity and high-quality assembly of the housing (pulse argon arc welding is used);
• high-quality processing of welds on the body, which includes several stages and consists of their mechanical processing, subsequent polishing and special acid passivation.

Which muffler to put on Priora

Catalog numbers depending on body type:

• Muffler Priora sedan/station wagon (VAZ 2170 and 2171) (2170-1200010-00)
• Muffler for Priora hatchback (VAZ 2172) (21720-1200010-00)

The approximate price of a muffler for a Priora is 1500 rubles.

By the way, do you know how to install a double muffler on a Priora?

Replacing a muffler on a Priora

Today it is difficult to imagine a car without a muffler, but this is how the first cars were created. It is not surprising that in those early years the public had a negative attitude towards the car, considering it the cause of all disasters and problems. It was only in 1884 that the first noise-reducing device appeared; it was installed on the Panhard-Levassor model. From this moment a new history of the global automobile industry begins, which continues to this day. Next, we will talk about mufflers installed on the Lada Priora, about possible malfunctions of the part and how to replace the muffler yourself. So, let's go. What is a muffler? Design:

• an exhaust manifold;
• main muffler;
• auxiliary muffler.

All components are interconnected in such a way that they form a single, interconnected, hermetic system. But it is precisely because of this interconnectedness of individual components that the failure of one part to work negatively affects the operation of other components.

Twin Pipe Types

The following options are currently most popular among domestic car enthusiasts:

• bifurcated outlet installed after the muffler;
• parallel installation of two pipes with mufflers behind the resonator;
• system with 2 resonators and the same number of mufflers.

Moreover, in the latter case, a twin pipe can also extend from each of them.
As you can see, each option has its own advantages and disadvantages, so the choice remains with the car owner. In this article we will tell you how to make the simplest double exhaust for a Priora. In this scheme, the pipe will be routed after the muffler, that is, the option is purely decorative.

This solution can be implemented in several ways. It will be easiest to weld a branch from the main pipe. However, this option has many disadvantages, which, however, do not affect the quality of the motor. But the fact is that at high speeds less gases will come out of the added pipe. That is, any knowledgeable person will understand that the dual exhaust is pure decoration.

It is better to assemble a structure in the shape of a slingshot, in which pipes of equal length and cross-section, directed in different directions, are installed after the muffler.

Malfunctions

The Priora exhaust system suffers mostly from corrosion processes that occur due to condensation: vapors settle on the hot surface, which, as the metal cools, turn into destructive drops. Overheating also causes system destruction. The main faults include the following:

• reduced noise reduction;
• breakdown of sensors;
• broken fastenings;
• mechanical defects of parts.

A decrease in the ability to suppress noise occurs due to damage to the partitions. This malfunction is usually indicated by rattling sounds when the engine is turned on. Whatever the malfunction, it requires an urgent procedure for replacing the muffler, because if you postpone this action until later, the problem can worsen and lead to very unpleasant consequences, because the muffler not only reduces the noise level, its second job is to protect against penetration toxic fumes into the cabin, which can lead to poisoning of the driver and passengers. In addition, the muffler affects the operation of the engine, maintaining its power. That is why it is important to approach the issue of replacing the muffler with the utmost care.

General information about the principle of operation and design of the resonator

The operating principle of this component is based on the use of completely closed cavities located near the pipeline, which are connected to the latter using a number of special holes.

As a rule, its body contains two cavities of different volumes, which are mechanically separated by a special solid partition. The existing holes, as well as closed individual cavities, are resonators that excite oscillations with their own frequency.

The directions of propagation of noise waves with a resonant frequency can change, due to which its effective noise damping occurs. The effect occurs due to friction in the holes present in the exhaust of gas particles.

The structure consists of two parts: the outer shell, as well as the internal structure. The product can be made entirely of stainless steel AISI 316, which is an analogue of the common version 10Х 17Н 13М2. Standard dimensions correspond to 250 mm x 100 mm. The pipe is also made of high-quality stainless steel and has dimensions of 51 mm x 1.5 mm.

The internal filling of the body of a standard resonator is simple, and the design uses features that take into account the propagation of noise waves

Features and Benefits

The main task of the exhaust system resonator of the Lada Priora car is to qualitatively dampen the sounds of engine operation, as well as vibrations arising during operation.

With the loss of the original qualities of this component, there is a sharp increase in vibration, as well as the noise characteristics of the car’s power unit, reaching their peak values ​​at maximum engine speed. In fact, this is a regular muffler that performs the same functions, which is why it is called a middle muffler based on its location in the exhaust system.

Such a muffler has the following advantages:

• effective damping of low noise frequencies;
• absence of significant barriers to the passage of gases;
• use does not reduce the overall cross-section of the exhaust system.

Causes of possible breakdowns, conditions for replacing parts

The main reasons for replacing the resonator on a car are as follows:

• burning of the body in the center of the structure;
• burnout or mechanical damage to the joints with the exhaust manifold (catalyst) or muffler;
• corrosion processes.

The resonator can burn out anywhere or undergo unwanted corrosion

As a rule, the following reasons are to blame:

• sudden changes in external temperature;
• contact of exhaust system components with reagents, salt, and moisture;
• accumulation of moisture condensate in the resonator;
• the presence of various chemical aggressive compounds in the resonator.

A faulty resonator when driving is a source of discomfort for the driver and passengers of the car. Other road users will also have a negative reaction to the operation of a car with a similar malfunction, since the movement of such equipment will be accompanied by loud noise.

Thus, signaling factors about a malfunction of the exhaust gas exhaust system of vehicles, in particular the Lada-Priora resonator, are:

• increased noise when the engine is running;
• a noticeable decrease in the power of the power unit (decreased traction, acceleration);
• intermittent engine operation (jumpy idle speed);
• entry of exhaust gases into the passenger compartment of the car;
• presence of black deposits on parts (smoke soot).

Due to its design features, full-fledged repair measures for this part are impractical, so experts recommend replacing the failed component.

Tips for choosing

The first thing you should pay attention to when choosing a muffler is the material. The best option is aluminized steel; it is stronger than stainless steel or zinc-alumina steel and is resistant to rust. This part will last about six years. The second is the device of the node. Silencers are divided into several types

• by design;
• degree of noise reduction;
• dimensions;
• presence/absence of an additional body layer.

Third, you should pay attention to the manufacturer and the country of manufacture. As a rule, Polish and Turkish companies cannot please you with their quality, while the Germans, Japanese, and even our domestic parts are quite suitable for the job. And lastly, it’s worth remembering that each model is equipped with a certain type of muffler and you need to know this when buying a part. The price for a standard muffler for the Lada Priora is approximately 3,400 rubles.

Replacement

1. Unscrew the upper and lower fasteners of the clamp holding the resonator and muffler. Moreover, if we unscrew the top one completely, then the bottom one is a little more than half unscrewed.

2. We disconnect the resonator and muffler, remove the seal.

3. We remove the rubber cushions, slightly lift the muffler up, and dismantle it.

4. We install the new muffler in the reverse order.

Muffler for Priora - price, installation and analogues

Problems with the exhaust system send drivers to maintenance. Whatever muffler you install, it will burn out over time - no matter how much it costs. The muffler, also known as the exhaust, of a Priora sedan, hatchback, and station wagon is the same and also burns out over time. Of course, the main muffler on the Priora is better made of stainless steel - despite the fact that it is more expensive. The price for example is STT - 4950 rubles, and Mute stainless steel - 4500 rubles, Stinger (stinger) - 4100 rubles. Replacing a muffler, although not a common thing, car enthusiast forums are regularly updated with fresh articles devoted to the problems of the Lada Priora car exhaust, operation, and replacement of the middle part of the car exhaust system, clearly indicating the relevance of the issue. The exhaust system is the exhalation for a car - it is important, just like the intake system. In this article we have collected most of the most pressing consumer questions.

Types and design of mufflers

1. Resonator (additional, front) . The resonator is connected to the collector pipe using bolts. It serves to distribute the gas flow and pre-suppress noise. The part is a perforated tube in a sealed housing, divided into several chambers. Perforation allows vibrations to be dampened due to the phenomenon of interference.
2. Main resonant muffler . On Priora, the main muffler is located after the catalyst. It is designed for ultimate noise suppression. Changing the cross-section of the exhaust flow in the chambers leads to the final damping of vibrations. The resonant type unit consists of several perforated tubes located in the housing.
3. Main direct-flow muffler . The direct-flow muffler for Priora is installed in place of the standard one. It has a slightly different design. Damping of acoustic vibrations is achieved as a result of changing the direction of flow. Also, sound-absorbing material is used in the forward flow chambers. The engine gets a characteristic sound, like a real sports car. Some Lada owners believe that the factory exhaust system does not allow the 16-valve engine to show its full power, especially when overtaking at a standing start. Although experts are convinced that installing a sports muffler alone will not solve the problem of lack of power. Either the engine needs to be modified or the entire exhaust system needs to be replaced.
4. An exhaust manifold . The presence of a manifold with an exhaust toxicant neutralizer is a key feature of Priora cars. In sports tuning, spider manifolds with complex geometry and physics of the structure are used.

Standard muffler - article number and price

The VAZ 2170 Priora is equipped by the factory with spare part item number 2170-120010. Made of light sheet steel with a thickness of 0.8-1.1 mm. Connecting inlet pipe with a diameter of 48mm. Inside the muffler chamber (an oval tank - popularly known as a barrel) there is a series of parallel chambers for the last stage of dampening the force of the sound wave of the exhaust gases. The exhaust pipe allows you to install different types of muffler attachments to add uniqueness and change the sound characteristics of your car's exhaust. The price of such a standard muffler is in the range of 1200-1600 rubles. Of course, you can go much further.

Main malfunctions of the Lada Priora muffler

The main reasons for replacing or repairing this part of the exhaust system are often burnout, rupture of the tank with loud bangs inside, loss of integrity, and deformation of structural parts. Loud roar when operating at high speeds, impacts on the body. An important factor in the failure of the Lada Priora muffler is metal corrosion, which occurs when the protective coating is lost as a result of overheating and condensation of water vapor on the walls.

Fluid in the muffler

accumulation of liquid in the cavity of the barrel or, as experienced car enthusiasts joke, “drips from the end”) is a fairly common phenomenon. It is important to find out what kind of liquid collects inside. Often the reason for this is water condensation formed from the difference in the operating temperature of the unit and the external environment. It has a negative effect on models made of iron-zinc steel that are poorly protected against corrosion. Models made of steel with a share of aluminum or stainless steel are less susceptible to this influence. Many people find a way out by drilling a drainage hole in the corner of the tank. If you find antifreeze or antifreeze in the liquid, it’s time to sound the alarm. Malfunction in the tightness of the cooling system of the car engine (loss of integrity, wear of the cylinder head gasket, depressurization of the cylinder block). You should immediately check the operation of the cooling system and eliminate the cause to avoid further negative consequences.

Loud roar at revs

The sound of the exhaust gases changes when the engine speed reaches over 3000. The reason for this behavior is often the burnout of the partitions inside the resonator, the middle part of the exhaust system, or a clogged exhaust catalyst. Loss of joint density, structural integrity as a result of corrosion, burnout of individual elements, cracks at the joints of parts. All this indicates the end of the service life of the spare part. The only reliable solution is to replace the faulty system unit. Eliminating these defects with a hammer and a welding machine is a temporary solution.

Why does the silencer fire?

Loud pops occurring inside the exhaust system suggest a malfunction. There is a malfunction, of course, but it lies in the operation of the car’s engine. The shot occurs as a result of partial combustion of the gas-fuel mixture inside the cylinders and ignition of the residues already inside the exhaust gas removal system.

The “exhaust” only takes on all the consequences of the malfunction; soon it itself may fail. You should check the spark plugs, spark plug wires, and the entire fuel supply system.

Knocks from under the body

Knocking, vibration, extraneous sounds when driving are unpleasant things for the car owner's ear. The culprit is often the impact of parts of the exhaust system on the underbody and gas tank of the car. There are several reasons for this behavior. Rubber fasteners of exhaust system parts are subject to priority inspection. Loss, wear and tear of which weakens the structure; replacing them will not be difficult. There may be a loss of tightness of the clamp connections of the parts (it is necessary to tighten the fasteners, it is possible that the clamp mounting bolts need to be replaced). Installation of an unsuitable model, with a difference in the bending angles of the pipes of the muffler design. This is fraught with constant contact with the body, chassis, gas tank, vehicle (requires immediate intervention). Reducing the vehicle's ground clearance by installing a lowered suspension (knocks on the beam). This can be solved by installing movable fasteners of a suitable configuration.

The main malfunctions of the Priora exhaust tract

Due to the fact that the operation of these components is associated with high temperatures, the most common breakdown is the burning out of some part. This could be the gasket under the manifold, or the wall of the muffler, catalyst or resonator. A separate part is the malfunction of the particulate filter or afterburner. But they are included in the section for repairing the injection part of the car, just like the Priora oxygen sensors. In other cases, it is either mechanical damage or simple rust.

The appearance of extra holes in the system is determined immediately and for sure. The engine exhaust just becomes loud and unpleasant. There is a crackling sound and sounds vaguely reminiscent of shooting. In this case, you need to go to the inspection hole, find the hole and replace the damaged unit. Relevant video on this topic:

Manufacturers of mufflers and prices of analogues for Priora

The choice of Priora mufflers available to consumers is huge. Many of them differ in the name of the manufacturer's plant. Let's look at the main ones that differ in production method and materials:

• Muffler made of steel with a large admixture of aluminum (Lada-Image, EDEX, PHOENIX, etc.), resistant to corrosion, suitable for all body types. Its disadvantage: the presence of welding seams in the design of the part. Price – from 2500 rub;
• The sunset type of production (Phobos, NAAZ, Avtokomplekt, etc.) has the main advantage that the part is produced without welding technologies or the use of stainless steel, so it has an increased service life. The price of such a “stray” is from 3000 rubles;
• Budget muffler (“VVV Tolyatti”) uses iron-zinc steel in production, is short-lived, suffers greatly from corrosion, and wears out quickly. The only plus is the price of the spare part is approximately 1400 rubles;
• A separate type is stinger (spider) forward flow exhaust systems (“MUTE”? “StinGer-auto”, etc.). Advantages - a slight increase in vehicle traction, choice of high-quality materials in manufacturing, long service life.

Prices vary greatly depending on the manufacturer, from 4500 rubles. Remember, it’s better to buy one good exhaust than two bad ones, and your Priora will be satisfied.

Removal and installation of the main muffler of the Lada Priora

Replacing the muffler on a Priora yourself is possible within the garage. The presence of an inspection hole will greatly help the replacement event. Replacement can also be done using a jack. In most cases, the main muffler and resonator are dismantled; other parts rarely break.

• To remove the main part, unscrew the fastening and connecting clamp. The module is disconnected from the resonator.
• The resonator hangs on rubber hangers, lift it up and unfasten it.
• We discard the sealing ring located between the nodes; when reassembling, a new gasket is used for connection.

The number of exhaust rubber bands on a Prior hatchback and sedan is different. The exhaust pipe on the Prior is attached to the exhaust pipe with a bolted connection, which is sometimes difficult to unscrew; it is advisable to pre-treat the bolts and nuts with WD-shkoy. Often after dismantling it is necessary to replace them with new ones. Before installation, it is recommended to clean all connecting elements from fumes and dirt. Removing the exhaust of priors “on the knee” is a tedious task, but doable!

Device

As we said above, the Priora exhaust has three main elements. Let's look at each of them in more detail:

• leading muffler. Elliptical device made of high-strength metal. In the inner part there are partitions necessary to soften the sound. There are pipes connected to it in front and behind. It is fixed to the body with the help of special pillows that prevent vibration;
• additional muffler. It is located near the manifold and is fixed to the body similarly to the leading structure. The connection to the leading muffler is made using hinges, which helps prevent damage to the bottom and lighten the load on the device;
• collector. Necessary for collecting exhaust from the engine and to prevent damage to the metal by harmful reagents. Connects to the receiver using flanges.

So, we have figured out the structure of the system, then we will talk about its main problems.

How to replace the rear muffler on a Priora with your own hands

So, it’s worth noting right away that it’s most convenient to carry out this repair in an inspection hole. If there are no such conditions, then it is necessary to at least raise the rear of the car with a jack.

So, apply a penetrating lubricant to all threaded connections, and then wait a few minutes until everything settles!

Now we unscrew the two nuts of the coupling bolts of the clamp connecting the resonator to the Priora muffler.

After this, you need to move the clamp to the side and disconnect the exhaust part. If you can’t do this manually, you can carefully and without extra effort hit the joint a couple of times with a hammer.

As a result, we get the following picture.

Now the muffler remains hanging only on rubber hangers, from which it must be removed.

As you can see in the top photo, one rubber band is located almost at the very rear of the muffler, and the second is closer to the beam, that is, at the other end.

Then we remove the muffler completely from the car and replace it with a new one. Installation is carried out in reverse order. When performing this repair, it is best to also replace the bolts and nuts, as well as the clamp itself, with a new one. Carefully inspect the connecting ring for damage and, if necessary, replace it with a new one.

The price of a new muffler for a Priora can vary quite a lot, and depends on the metal used, as well as on the manufacturer. Prices can vary between 1000-2000 rubles.

Mufflers VAZ 2101-2107 (Classic)

Silencers for domestic classics come in 3 types:

1. Muffler for a classic sedan body assembled by AvtoVAZ (VAZ 2101, 2103, 2105, 2106, 2107) stamped and welded
2. Muffler for a classic station wagon assembled by AvtoVAZ (VAZ 2102, 2104) stamped and welded
3. Muffler for classic IZhavto assembly (VAZ 2104, 2106, 2107)

Despite the fact that the length of the classic sedan and station wagon is approximately the same, their mufflers are slightly different. The main difference here is not the length of the exhaust pipe, but the bend of the pipe that goes around the bridge (unfortunately, this is almost invisible in the photo). Also, about the first 2 types of mufflers, it must be said that they can be presented on the market in 2 types of production:

1. Stamp welding is a production method in which two metal parts of the muffler can are stamped, then welded together and the whole thing is welded to the pipe.
2. Sundown is a manufacturing method in which a sheet of metal is taken and wrapped around the muffler entrails.

Historically, mufflers were previously manufactured only by the stamp-welded method. Then bam, nano technology! A seaming method has appeared, which is cheaper to produce and more reliable compared to the stamp-welded method, because One weld is better than a muffler welded all over. In this case, it does not matter what method the muffler is made of - they fit like originals, both stamped and welded. However, keep in mind that the original muffler for classics is only stamped and welded, because The factory makes them only using the old method.

The presence of the 3rd type of muffler is explained by the fact that when the production of the VAZ classic was completely transferred to Izhevsk, they decided to install their own exhaust system, the production of which had already been established.

From the classics, let's move on to front-wheel drive VAZ cars, where the above-mentioned rule applies 100%: “The longer the body, the longer the exhaust pipe of the muffler.” But there are nuances here too.

The design of the exhaust system "Lada-Priora"

The exhaust gas exhaust system on the Lada Priora is simple in structure and similar to the exhaust systems of most budget cars. It can be divided into three components:

• exhaust manifold with gas neutralizer;
• additional muffler including a resonator;
• main muffler.

All three parts are hermetically connected to each other. The main and additional mufflers are attached to the bottom of the car on rubber suspensions. The exhaust manifold is connected directly to the engine.

Priora is available in three body styles: sedan, station wagon and hatchback. Functionally, the exhaust systems of cars in different bodies do not differ from each other, however, due to the difference in dimensions, mufflers for different versions differ in the length of the pipes, the shape of their bends and the number of rubber suspensions. So, on hatchbacks the mufflers are somewhat shorter than on a sedan, and on station wagons the number of mounts will be greater.

1 - cylinder head gasket, 2 - exhaust pipe of the catalyst, 3 - reinforced gasket, 4 - corrugation, 5 - resonator, 6 - rubber suspensions, 7 - bracket, 8 - exhaust pipe, 9 - o-ring, 10 - rubber suspensions, 11 - main muffler, 12 — fastenings

Exhaust system malfunctions are most often associated with the main or additional muffler, so they are usually the ones that are replaced.

Priora Muffler Dimensions

The exhaust system consists of several parts, each of which plays an important role. These include the exhaust pipe, catalyst, resonator and the muffler itself. The main functions it performs are noise reduction and reduction in the emission of harmful gases. Also, there is often a corrugation on the receiving pipe, designed to reduce vibration. A malfunction of any part of the exhaust system can affect the condition of the entire car and many other parts in particular, so it is necessary to regularly diagnose this element of the car.

Roar, shooting, condensation and other reasons to look under the car

It's easy to spot muffler problems. It is difficult not to notice extraneous sounds coming from under the car, or a sharp change in the tone and volume of the response to pressing the gas. It is not uncommon to notice fluid leaking or even splashing from the exhaust pipe. All these are signs of malfunctions, but do they all indicate problems in the exhaust system?

Fluid in the muffler

Fluid dripping from the exhaust pipe is a common occurrence. However, it is worth distinguishing what kind of liquid it is. If it's water, there's nothing wrong with it. When the ambient temperature changes, moisture from the air condenses on the surfaces of the muffler. If a steel muffler is used, this can lead to corrosion, but usually the Priora exhaust system uses aluminized steel or stainless steel, which means that damage from water will be minimal. In cases of heavy accumulation of water, experienced motorists usually drill a drainage hole in the “barrel” of the muffler.

If there is excessive accumulation of water in the muffler, in winter you may encounter icing of the exhaust pipe

If antifreeze drips from the exhaust pipe, the fault should be looked for not in the muffler, but in the engine. The reason may be wear of the cylinder head gasket, as well as depressurization of the block itself. Antifreeze in the exhaust pipe is a symptom of serious problems, and if it is detected, you should immediately diagnose the engine.

Pops and shots from the exhaust pipe

Popping noises coming from the muffler indicate a malfunction. However, this is also a malfunction of the engine, not the exhaust system. Shots or pops from the exhaust pipe indicate that the mixture of air and gasoline does not burn out in the cylinder block, which means that when you hear them, you should check the spark plugs and spark plug wires, as well as the serviceability of the gas distribution mechanism. Problems with combustion of the mixture are not a symptom of a muffler failure, but they can be its cause.

Video: this is what pops from the muffler sound like

Knocking from under the car

A knocking sound from under the bottom of the car while driving or rattling from vibrations is an unpleasant phenomenon. The muffler may touch the gas tank or the underbody. There are several possible reasons for this.

1. First of all, check the rubber muffler hangers. Their wear leads to loosening of the entire exhaust system. These mounts are sold at most auto parts stores. Their price usually does not exceed 100 rubles per piece. Replace the suspension with new ones and the knocking will stop.
2. It is worth checking whether the clamp connecting the main muffler and the additional muffler is loose. If necessary, replace the fastening bolts and nuts. For replacement, it is best to use fasteners made of heat-resistant materials.
3. Using the wrong model of muffler with pipe bends that differ from the original spare part can lead to contact between the exhaust pipe and various components of the car: the body, the gas tank and even the suspension. Be careful when choosing a muffler.

Which muffler to choose

Before changing the muffler, you need to select it. There are a lot of options on the market, and seemingly identical mufflers can differ in price by two to three times. We recommend that you pay attention to the thickness and type of steel, as well as the country of manufacture.

Stainless steel or aluminized steel

Mufflers for cars of the Priora family are made of steel of various thicknesses. The thicker the steel, the stronger the muffler. The type of steel is no less important. Most car enthusiasts prefer stainless steel that has been proven over the years. However, modern aluminized steel is not inferior to it in terms of resistance to corrosion, and is significantly superior in overall strength and ability to absorb vibrations. This means that an aluminized steel muffler will be quieter than a similar one made from stainless steel.

Manufacturers and prices

Exhaust system parts for Lada-Priora cars are produced not only in Russia. There are mufflers and resonators made in Poland, Turkey and Germany.

Polish and Turkish mufflers are usually cheaper than German ones. However, their service life is half that of the best domestic models and mufflers from Germany.

A muffler for a Priora costs from one to five thousand rubles. At the lower end of the price range are models made of thin steel; aluminized models usually cost at least three thousand rubles. The situation is similar with resonators. Prices for them start at about one and a half thousand rubles.

Design features of “Prior” mufflers

Elements of the exhaust system and mufflers of Lada Priora are made from various metals and their alloys. For this use:

• steel with the necessary additives;
• alloy of steel and aluminum;
• stainless steel.

Products made from an alloy of aluminum and steel are in high demand. Compared to elements made from a conventional steel base, they have certain anti-corrosion properties, and their strength coefficient is higher. If ordinary steel “plugs” are able to withstand dynamic and thermal loads for about one and a half years, then a part made of the above alloy can withstand the effects of exhaust gases, poor road surfaces and difficult weather conditions for about 6 years.

Products made from “stainless steel” are not only the heaviest, but also the most expensive; they are classified as car tuning elements, and accordingly, their price is much higher. They can be ordered at specialized enterprises working with this type of metal.

Instructions for replacing the muffler and more

Replacing the muffler on a Priora can be easily done by driving the car onto an overpass, or placing it above an inspection hole. Some car enthusiasts simply raise one side of the car with jacks, but in this case it is very important to use safety stands.

To avoid burns, do not begin repairing the exhaust system after the engine has been running for a long time. Allow the muffler to cool.

Before you start replacing the muffler, it is worth understanding a few more parts of the exhaust system. The need to replace spacer rings, rubber hangers or corrugations may appear during the inspection or even dismantling of the muffler.

Changing the O-ring

The sealing ring is made of heat-resistant reinforced material and serves to lower the temperature of the exhaust gases. It burns out during use.

The muffler O-ring not only makes the connection airtight, but also reduces the temperature of the exhaust gases

It is most convenient to change the ring while installing a new muffler. To replace, you need to unscrew the bolts connecting the muffler and the resonator. By opening the muffler parts, you will see the O-ring and can replace it.

Installing new rubber suspensions

It is better to replace the rubber suspensions on which the muffler and resonator are mounted at the first signs of wear. This can save you from more serious problems with your exhaust system. To remove the mount, you first need to disconnect the muffler from it, and then remove the suspension itself from the hook. Before installing a new suspension, it is better to wash the hook from dirt so that the new elastic band holds securely.

Muffler hangers for Priora are sold in most spare parts stores

Changing the muffler corrugation

The muffler corrugation serves to reduce vibration of the exhaust system. This unit is usually made of stainless steel. It serves for quite a long time, but over time it still requires replacement. If you have argon welding skills, you can change the muffler corrugation on a Priora yourself.

Weld the corrugation carefully so as not to damage the muffler

First of all, you need to measure the old corrugation and select a new one of the appropriate size. Then you should carefully cut out the old corrugation, and insert and weld a new one in its place.

Instructions for replacing the muffler and resonator on the Lada Priora

To replace the muffler on a Priora, you will need the following tools:

• wrenches 7 and 13;
• flat blade screwdriver;
• chisel;
• hammer.

By following the instructions below, you can remove the old muffler yourself and install a new one. If necessary, you can change the resonator.

1. Unscrew the bolts of the clamp connecting the muffler and resonator pipes.
2. Open the pipes and remove the O-ring.
3. If you need to change the resonator, unscrew the bolts securing the resonator pipe and remove the reinforced spacer.
4. Remove the muffler and, if necessary, the resonator from the rubber suspensions.
5. Place the main and additional mufflers under the vehicle in the position in which they will be installed.
6. Secure the resonator with elastic bands.
7. Insert a new spacer and screw the resonator to the exhaust pipe of the catalyst. Do not overtighten the nuts; screw them in until they are tight.
8. Hang the muffler on rubber bands.
9. Insert the O-ring and connect the muffler to the resonator pipe.
10. Check all connections and hangers.

All spacer rings should be replaced with new ones when installing the muffler.

How to repair a muffler

If your car's muffler requires repair or complete replacement, it is not recommended to do this work yourself, since there is a high risk that you will only worsen the condition of the exhaust system, and possibly the entire vehicle as a whole. In order to prevent such a situation, contact only specialized car services. In our car service center, qualified specialists with the necessary competence in the field of working with exhaust systems will competently diagnose the exhaust system of your car, and, if necessary, repair or install a new muffler in the shortest possible time.

If you encounter any malfunction in the exhaust system and you need to diagnose it, repair it or replace the muffler, then our salon specialists will be happy to help you with this, since we carry out all types of this work!

Interestingly, the exhaust system in any car is one of the most important. Moreover, it includes many different nodes. And it is directly connected to the electronic control system (ECM).

These difficulties occur primarily due to increased requirements for the environmental friendliness of the car. “Priora” in this regard is quite a European option. The toxicity of its exhaust complies with the Euro-4 standard.