What to do if there is a hum?
In any case, from the listed reasons it is clear that the problems can be quite serious and will lead to expensive repairs, so this “signal” should not be neglected.
You will need the help of a specialist, there is no way around this, because as a person unfamiliar with the mechanism, it is difficult to independently determine the problem with one hundred percent accuracy. I would like to give some important tips when diagnosing a transmission:
1. Find out what exactly caused the howling. If it is the main pair shaft, then keep in mind that it has already had its effect on other parts of the mechanism. Therefore, it is likely that replacing only this will not be enough.
2. Think about the feasibility of repairs; perhaps the costs of purchasing new or used parts will be high. Then it’s easier to find a contract transmission or a used one, but in good condition, than to repair a “dead man”.
3. Stopped for repairs, buy only high-quality and original parts, this will extend the life of your car.
What's the result?
As you can see, the occurrence of extraneous noise in the form of a howling or hum during operation of the gearbox should not be ignored, as this can signal serious damage to the unit and other components of the car. In such a situation, it is important to find out as quickly as possible which part of the box or vehicle assembly is causing the hum or howl.
We also recommend reading the article about why a crunching noise occurs when shifting gears with a manual transmission. From this article you will learn about the reasons for the crunching of the box at the moment of switching, as well as what to do in such a situation.
Manual transmission - reliability, efficiency, simplicity of design. You can supplement the list of positive aspects of mechanics with maintainability and low cost compared to other gearboxes. But if the gearbox howls, then all the advantages begin to fade unpleasantly.
Gearbox whine is unpleasant, but often encountered in manual transmissions. In general, if something howls in a car while driving, then this is an unpleasant thing, and even more unpleasant when there is an understanding that one of the main components of the car is faulty. This problem applies not only to domestic cars, but also to foreign cars.
If you are interested in renting special equipment, Dekar Stroy will help you with this.
Which boxes howl?
The noise problem appeared after Auto VAZ introduced a manual transmission of its own production with a cable drive. These boxes pleased us with clearer gear shifting, but disappointed us with a rather loud howl, especially in 2nd and 3rd gears. The transmission that has this problem is manual transmission 2181.
Box 2181 is an improved previous model 2180. Instead of rigid rods, it is driven by a cable drive. Thanks to the reduction in the bevel of the synchronizer teeth, the gears began to engage more clearly. In 1-2 gears, conventional synchronizers were replaced with multi-cone synchronizers.
The plant received a large number of complaints from car owners, so in 2020 the manufacturer modernized the transmission. As AvtoVAZ assures, the updated version has become 25% quieter, but it is still far from ideal.
New Lada: Lada X Ray details about fuel consumption
Why is the VAZ 2114 gearbox humming?
Why might there be a hum? Typically, noise problems occur on machines that are already 10 years old. This problem also applies to cars with a mileage of more than 100,000 km. The main cause of hum is wear and tear.
Other reasons for the appearance of any noise from the gearbox include:
- low-quality spare parts;
- developing the service life of the main elements of the car;
- improper operation of the vehicle;
- use of low-quality gear oil;
- repairs carried out by an illiterate technician who has ruined something.
Do I need to add oil?
It is difficult to check the oil level in a cable-driven box; this model does not have a dipstick. The only way to do this is to unscrew the oil filler plug. If at the same time the oil begins to flow out slowly, then the level is normal; if not, it is better to top it up. In this case, it is imperative to use exactly the same technical fluid as already poured in the box.
To add oil to the maximum level, you need to jack up the car from the side where the oil filler neck is located and add oil until it begins to flow out. For convenience, it is better to use a syringe. As soon as the liquid flows out, the plug must be quickly tightened. If you do not raise the correct side of the car, the transmission fluid level will be low.
In some cases, this procedure helps get rid of the howling or makes the box a little quieter. Some motorists noted that they had to add about 0.5 liters of oil to the manual transmission. But in most cases, the procedure does not eliminate the howling problem.
Typical problems of Lada Granta
Answers (4)
Follow the answers to this question
Like many other cars, the Lada Granta has its weaknesses, which are commonly called “diseases”. Some “diseases” will not keep you waiting long and will manifest themselves already during the first time of operation, while others will make themselves felt only after a more or less high mileage. Some of the problems were recognized by the manufacturer and can be fixed in the showrooms of official dealers, while the other part will have to be resolved independently.
Approximately half of the cars sold after a short mileage upset their owners with a generator breakdown. Repairing the original part will solve the problem only temporarily, so it’s worth installing a generator from Kalina.
The second problem #8212 is a broken thermostat. As a result, in winter the engine does not warm up above 70 degrees, or at a temperature of even 100 degrees the fan does not work. The solution is to replace the thermostat with an analogue from the VAZ 21082 or from Kalina.
At idle speed, engine vibration is felt in the cabin. This problem is not officially recognized, and therefore the solution is to stretch the mounting pads.
Strongly overtightened pipes under the hood begin to crack after a while where the clamp is tightened. You can save the situation by loosening the clamps.
The howling in the gearbox, the tight movement of the handle and its freezing in cold weather are one of the unpleasant surprises that Granta presents to its owners. By filling the box with synthetic oil 75w90, you will only get rid of the howling a little, but will solve the problem of freezing of the handle
Hard plastic in the cabin is far from the best design solution for a modern car, but at least you can put up with it due to the lack of squeaking. Another annoying problem here is #8212, the creaking of the ceiling cladding, which most often manifests itself at negative air temperatures. Also, owners of Lada Granta complain about cracking at the top of the windshield or rear window, interior light and poor sound insulation. There is no official solution to the problem yet, so you will have to either change the casing and improve sound insulation, or turn on the music louder. The on-board computer does not always display data on instantaneous fuel consumption, which is one of its main tasks. The glove box lid sometimes opens if you close it before the first louder click. Therefore, it must be closed until the second quiet click. Another annoyance is the very weak round knobs for adjusting the angle of the backrest of the front seats. If possible, they should be touched less or done more carefully.
Will disassembling the manual transmission help eliminate the howling?
Most Lada car owners, having tried the methods listed above, calm down, manage to get used to the noise and continue driving their car. But some are ready to go all the way, so they decide to disassemble the box themselves or contact a service center for this service. Is it possible to achieve the desired result using this complex procedure?
Sometimes when opening the box, significant defects in individual gears are revealed. In this case, the transmission usually makes a loud noise when engaging a particular gear. There may also be problems with the clutch and release bearing. Sometimes replacing these parts solves the problem.
In most cases, installing new parts does not make the gearbox quiet, because all gears are made on the same equipment, which, as already mentioned, does not allow for an ideal configuration.
New Lada: Kalina takes a long time to start!? — View topic :: AUTOLADA.RU
The procedure for removing and disassembling the gearbox is lengthy and expensive, but may not yield results, so it is hardly worth going through the gearbox if howling is the only problem.
How to eliminate the howling of a VAZ box
The first thing you can do is contact the service center and request that the noise be eliminated as part of the warranty repair. This process is long, painstaking, requires patience and does not always end in victory. In most cases, the manufacturer claims that the sound during transmission operation is normal and the vehicle is not subject to warranty repair. But if the sound is very loud or the buyer is very persistent, the manufacturer suggests replacing the box. But, judging by the reviews of drivers who managed to replace the manual transmission under warranty, this does not always solve the problem. The fact is that a howling box is a manufacturing feature, not a defect, so whether it’s worth replacing it with exactly the same one is up to you to decide.
Modification of the clutch cable
Sometimes the noise is due to vibration transfer between the fork and the clutch cable. This problem can be solved with a simple modification that does not require financial investment. You need to remove the clutch cable from the fork, replace the standard rubber insert with a washer made of softer rubber, which dampens vibration well. The element is glued to a plastic part, which serves as a stop for the cable.
This method does not help everyone and will not allow you to achieve ideal silence, but it makes the unpleasant sound much quieter. In any case, it won't hurt to try to implement this simple modification.
Reasons for howling boxes on Lada Granta, Kalina and Vesta
The howl of the box usually appears already in the first thousand kilometers; the appearance of the noise is not affected by the operating conditions of the car. It follows from this that the problem is related to the design features of this unit.
The manufacturer assures that the cause of third-party sounds is imperfect processing of the gears, as well as the main pair. Minor roughness leads to the appearance of characteristic sounds when moving. In the modified version of the manual transmission, this problem is partially eliminated, but it is impossible to completely get rid of the hum, since the equipment available at the factory does not allow the parts to be brought to ideal condition.
Perhaps the plant will eventually update the equipment and delight its customers with an updated, quieter transmission; it is unknown when this will happen. Therefore, for now, all that remains is to put up with the hum of the box or try in action ways to reduce the sound while driving.
Howling or humming in the gearbox: causes of malfunctions, diagnosis and elimination
So, before diagnosing a gearbox, it is necessary to consider the main causes of hum and howling in manual and automatic transmissions, common faults and methods for eliminating them. Often, owners of cars with a manual or automatic transmission during operation are faced with such a sign of problems or malfunctions, which are accompanied by a hum or howling in the box.
- Let's start with the mechanics. First of all, taking into account the design features of specific mechanisms in manual transmissions, noise may be normal. To a greater extent, this applies to budget cars. However, if the noise in the box is strong and drowns out the operation of the internal combustion engine, this indicates that you need to look for the problem in the box itself.
Another cause of noise may be not the gearbox, but other components and elements associated with it (clutch, wear of the release bearing, wear of transmission elements, etc.). In any case, it is necessary to identify the problem through diagnosis and fix it as soon as possible.
To understand why the manual transmission howls, you need to pay attention to the following points. Although a manual transmission is simpler than an automatic transmission, this unit is still structurally complex. This means that extraneous sound (howling or hum) in the box can appear for various reasons.
The main causes of noise in manual transmissions:
- insufficient amount of lubricating fluid (a hum or howl is heard in high gears and absent in low gears);
- wear of the input shaft bearing or drive gear bearing (changing noise in the box in neutral mode when the clutch is depressed);
- failure of synchronizers and gears (the appearance of an extraneous sound with a grinding sound when one or more gears are engaged, gear shifting is difficult);
- wear or poor-quality replacement of parts of the main pair (the occurrence of a prolonged hum can lead to failure of the manual transmission);
- poor-quality assembly after a major overhaul of the gearbox (the appearance of a hum due to an improper fit of the shaft/gear pair), etc.
- A serviceable automatic transmission makes virtually no extraneous noise, vibrations, squeaks or other sounds. For this reason, if any noise occurs, immediately stop using the vehicle and carry out diagnostics to avoid possible damage to expensive components and elements of the box.
After diagnostics, it is often necessary to dismantle the box for subsequent disassembly and troubleshooting. Only after this can we talk about an integrated approach to high-quality troubleshooting.
The main causes of noise in automatic transmissions:
- insufficient level of transmission fluid (the operation of the gearbox is accompanied by jerks during shifts and a prolonged howl with a changing tone);
- clogged automatic transmission filter (filter replacement with complete ATF replacement);
- failure of gear engagement in the pump (increasing noise with the appearance of a hum);
- abrasion or damage to the teeth on the drive gear or shaft (noise or hum of bearings)
- wear of parts of the main pair (the appearance of backlashes, as a result, the occurrence of extraneous noise);
- displacement during installation or after repair of gears, resulting in the appearance of excessive friction of parts (increasing hum when one of the gears is engaged);
- poor fastening of the axle shafts (the appearance of a hum or howling when the speed limit increases or decreases), etc.
How to check the oil level in a cable transmission on a Liftback?
Dear. I had this problem. The 2nd gear crunched on the Grant Liftback. The car is out of warranty. Please advise what can be done?
Cable gearbox.
Another question - if you change the oil, is there a difference compared to the factory one?
Autoworld news:
Outlander has reached Russia
Official sales of Mitsubishi Outlander will begin on the Russian market at the end of May - beginning of June. The European debut of this newest SUV took place on March 4 at the 76th Geneva Motor Show. The prototype for it was the ASX “concept” and the serial Mitsubishi Airtrek, sold exclusively in the Land of the Rising Sun.
The Mitsubishi Outlander transmission provides permanent all-wheel drive to all wheels, and torque is distributed between the axles using a viscous coupling. The independent suspension of all wheels (McPherson type at the front, multi-link at the rear), despite the significant ground clearance, made it possible to achieve a truly car-like handling of the SUV and high stability in behavior on the road during high-speed driving.
