The gearbox has abnormal noise in the first and second gears, and the other gears are normal

Your problem is not very serious, and it is quite easy to solve.

Abnormal transmission noise is also a type of transmission failure. The root cause of transmission failure is still caused by high temperature, because too high temperature will affect the quality and lubrication performance of the transmission oil, increase friction and wear, and at the same time, sludge will also be generated in the transmission, resulting in the transmission work blocked.

If this problem is a manual transmission, it can be solved by using the Matti T, which is a product developed for manual transmission failures. If it is an automatic transmission you need the Mattie ATF and the Matti TA, one to clean and one to repair the protection.

Regarding the question you asked, first of all, according to the situation you described, it is likely to be caused by the abnormal sound caused by the poor working performance of the relevant components of the vehicle transmission system, including the clutch, gearbox and transmission shaft, etc., but for the maintenance of vehicle abnormal noise and noise problems, it is necessary to conduct on-site test listening to the sound inspection and judgment, and it is necessary to make an accurate judgment after comprehensive analysis of the conditions of abnormal noise and the nature characteristics and source of the sound. Therefore, it is recommended that you go to the repair shop for further on-site inspection, analysis and judgment based on the above analysis and combined with the actual situation of the vehicle.

Hello: In this case, it may be that the first and second gear synchronous teeth are abnormally worn. It is recommended to go to the repair shop to overhaul the gearbox.

I wish you a pleasant use of the car* [Car questions, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello friends, it may be that the clutch is not well matched.

Hello. If it is a manual gearbox, this situation is basically caused by the damage of the gears of the internal first and second gear synchronizers, resulting in 1 2 gears of abnormal noise. It is possible that the clutch is not fully pressed to the bottom when the gear is engaged, resulting in incomplete disengagement, and the gear and other parts of the synchronizer are damaged by the gear and other parts of the gear when the gear is engaged.

It is recommended to disassemble the gears of the gearbox to check the synchronizer, I hope it can help you, I wish you a happy car! [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

If you are not familiar with the vehicle and do not have a good grasp of the engine speed required for gear shifting, you will experience abnormal noises. This abnormal noise has a great impact on the gearbox, and it is easy to damage the gearbox, so it should be avoided as much as possible. The gearbox itself is defective, and this situation belongs to the gearbox with its own bug, which is also a very dangerous situation and needs to be repaired in time.

The reason for the abnormal sound when the manual transmission car shifts may be that the hand transmission car is a little long, whether the shift mechanism is loose, check whether the shift ball head and gear locking mechanism are loose and abnormal. When it's cold, there are times when the car makes a screeching noise after changing gears.

<> to be exact, it is normal for you to have a frustration in the first gear and second gear, if you step on the accelerator in winter, the frustration is even more serious, only when it is hot, it feels a little smoother, and only when the gas pedal is slow can it feel smoother! It's normal if it is, but it's much better after third gear! The car hangs 1st gear, 2nd gear, and 3rd gear refers to the car gear that is hung, and 1st gear, 2nd gear, and 3rd gear are the forward gears of the manual transmission.

Specifically: 1. First gear, starting gear, car starting gear. The performance is basically the same as that of the reverse gear, so it is not suitable for continuous high-speed operation.

Generally, after the inertia of the vehicle movement, it can be shifted into second gear.

The advantage of this gear section is that when going up or down, the vehicle will be stably in the 1st or 2nd gear position, and the transmission will not be constantly shifting due to the load of the incline or the unbalanced speed. When falling on a slope, it uses the resistance of the engine at low speed as a brake, and can be used to start and move forward when going up a large slope or when starting on a relatively inclined slope. Hanging the gears here can limit the car's gears to automatically switch only in low gears (equivalent to the first and second gears of a manual transmission car) to ensure that the car gets the maximum forward momentum.

1st gear is a low-speed driving gear, if you switch instantly, it is equivalent to a high-speed gear to engage a low-speed gear, it is almost a sudden braking, relying on the gear to stop, there may be a direct short shaft, gear wear, broken and falling gear fragments to the gearbox is destruction.

The usual reason may be that there is some problem with the gear system, or it may be because there is a problem with the braking system, so there is this abnormal noise.

The reason for the abnormal noise is that I did not fully press the clutch when changing gears, and only stepped on it halfway, so there is a strange sound.

Usually because the gear is not smooth, the gear is not smooth enough, and the oil inside is reduced, so there is a ring.

The structural principle of FAW 12-speed gearbox is basically the same as that of Fast, but FAW's current 12-speed main box does not have a synchronizer, so when changing gears, if the speed of the vehicle and the engine speed are not well matched, there will be a sound similar to teething, and it will be better if you are familiar with the operation.

1.Utilize various testing instruments and equipment to obtain various data of automobiles, and judge the technical condition of automobiles according to these data, which is called detection and diagnosis method. At present, the instruments and equipment available are:

Multimeter, ignition timing lamp, cylinder pressure gauge, vacuum gauge, oil pressure gauge, sound level meter, flow gauge, fuel consumption meter, oscilloscope, cylinder leakage detector, crankcase blow-by S detector, gas analyzer, smoke meter, as well as a complete function of dynamometer, four-wheel aligner, brake test bench, side slip test bench, headlamp tester, exhaust gas analyzer, automobile axle extractor, engine comprehensive tester, chassis dynamometer test bench, tire balance tester, etc. These instruments and equipment provide people with a reliable basis, so that the automobile fault diagnosis from qualitative diagnosis to quantitative diagnosis.

2.Utilize the computer itself can quickly monitor the working condition of the control system and the characteristics of the stored data, through a certain operating procedure, the fault code that the automobile computer monitors and stores is extracted, and then prescribe the right medicine, carry out troubleshooting, this method is called self-diagnosis method. This method is very effective and fast and accurate for all major systems of the electronically controlled car.

3.Car computer fault diagnosis instrument (commonly known as decoder), it itself is a special small computer, it can extract all kinds of information collected and stored by car computer, (ECU), and then sort, compare and translate, display it in a clear text, curve or table mode, people can judge the type of fault and the location of the fault according to the information transmitted out. It can also send commands to the car computer for static and dynamic diagnostics.

This is one of the most promising diagnostic methods.

First, check whether the oil level of the gearbox is normal, and whether there are metal impurities and debris in the gearbox oil. If there is no problem with the transmission oil, it may be caused by the wear of the bearings or gears in the gearbox, and it is recommended to find a 4S shop for specific inspection.

Summary. Dear, I'm glad to answer for you the reason why there is an abnormal sound in the first gear, the second gear, and the third gear: 1. The clutch is not stepped on to the end; 2. The linkage mechanism is loose; 3. The clutch plate is seriously worn and the pressure plate is damaged; 4. The gear is not in place.

Dear, I'm glad to answer for you that the reason why there is an abnormal sound in the first and second gears and the third gear is that the studio beat 1 and the clutch is not stepped on to the end; 2. The linkage mechanism is loose; 3. The clutch plate is seriously worn and the pressure plate is damaged; 4. The gear is not in place.

Second, the solution to the sound of the car gear: 1. The clutch must be stepped on in place; 2. Check the mechanism of the jujube bucket and tighten it; 3. Replace the damaged clutch plate; 4. Master the correct method of hanging gear, and the hanging tassel grinding file must be in place.

The specific performance is 1The cause may be a faulty drivetrain, such as wear or crack damage to the driveshaft components, bearings or gears, resulting in abnormal noises. 2.

It may be a transmission problem, such as a worn transmission gear or a low buried fluid in the transmission bridge. 3.Vehicle chassis components can also be the cause of squeaky noises, such as broken suspension guards, loose shock absorbers, engine chassis brake problems, etc.

4.If there is a problem with the tires, it can also cause the vehicle to make abnormal noises, such as punctures, tire wear, etc. 5.

It may also be the sound of the wheels and wheels crushing, the noise of the wear of brake parts, etc., which may cause the vehicle to make abnormal noises. Either reason, it needs to be investigated and repaired in time, otherwise it may lead to vehicle driving safety problems, and even lead to vehicle failure in serious cases.

Summary. Hello, I'm helping you sort out the answer to your question, please wait a while Manual gearbox 2nd gear into 3rd gear squeak.

Hello, I'm helping you sort out the answer to your question, please wait a while This is mainly the gear or synchronizer in this gearbox, and the wear gap is relatively large, which leads to the need to disassemble the gearbox for inspection.

It is recommended to replace the gearbox oil, if it still does not work, then you need to check the bearings in the gearbox to see if the wear is relatively large.

The gap in the clutch plate is a little large, will this be the case.

No, it won't

The gearbox is a very important component in the car, and its function is to drive the tires of the car through the gear transmission device to realize the operation of the car. However, in the process of driving some cars, there will be a phenomenon of the gearbox clicking in the first and second gears, which often causes the owner to worry and anxiety.

First of all, we need to understand how the gearbox works. The gearing in the gearbox is composed of many gears and axles, which are shifted and transmitted through the hydraulic system. In the process of driving in the first and second gears, the speed of the gears is very fast, and at the same time, because of the large power input, the gears are also under greater pressure.

If there is a high degree of wear on the bending gears and bearings, there will be a clicking sound when driving in first and second gear.

Secondly, the cause of the gearbox clicking in first and second gear may also be due to the failure of the hydraulic system. If the hydraulic system has insufficient oil pressure or poor oil quality, it can cause unsmooth gear shifts, which can cause the transmission to rattle.

For the problem of the gearbox clicking in first and second gear, we can take the following measures to solve it. First of all, replace the oil of the gearbox and hydraulic system in time to ensure the quality of the oil and sufficient oil pressure. Secondly, regular maintenance and maintenance of the gearbox, such as replacing wearing parts such as gears and bearings, can reduce the degree of wear.

Finally, improve your driving skills and try to avoid slamming on the accelerator when driving in first and second gears to reduce the pressure and load on the gearbox.

In short, the problem of the gearbox clicking in first and second gear not only affects the driving experience, but also may cause safety hazards to the vehicle. Therefore, we should take timely measures to solve the problem to ensure the safety and smoothness of the car.

If the transmission emits a continuous high-frequency metal friction sound, it is generally a lack of gear oil or deterioration, and the sound can be eliminated by refueling or changing the oil. 02 If there is an abnormal sound in neutral and the abnormal noise disappears when you press the clutch, it may be that there is a problem with the clutch, you can lift the gearbox and check the clutch. 03 If there is an abnormal sound in all gears, it is generally the bearing sound behind the output shaft of the transmission, which should be disassembled and the bearing condition should be checked.

04 If the abnormal sound disappears when the direct gear is engaged, but there is abnormal noise in other gears, it means that the front bearing of the second shaft is damaged or the intermediate shaft bearing is damaged, and the gearbox should be opened to check the situation of the intermediate shaft. 05 If there is a continuous high-frequency abnormal sound in a certain gear during driving, it is generally the metal friction and peeling on the surface of the gear, and the gear should be replaced in serious cases. 06 If it is a periodic sound, it is mostly a broken individual wheel tooth, you should stop and check the gearbox first, if it is serious, you should call a tow truck to tow the car to the repair shop for maintenance, so as not to cause greater losses.