A shaft bearing of the gearbox is broken. There may be a rustling noise and the temperature will be high. Seriously, the shaft will be displaced, affecting the transmission phenomenon. The solution:
1, if the car idle or driving process, in the cab to hear the transmission part of the abnormal sound. It may be that the transmission oil is missing or the oil quality is bad; Transmission bearing wear, loose or bearing damage; Transmission shaft bending; The gear does not mesh properly. The treatment measures for the car running metal dry friction sound, with the hand touch the transmission shell has the feeling of hot, this is due to the lack of lubricating oil or lubricating oil deterioration caused by the sound, should be refueling or check the oil quality, when necessary to replace;
2. There is abnormal noise when in neutral, and the sound is eliminated after stepping down the clutch pedal. Generally, the bearings before and after one shaft of the transmission are worn, loose or often engaged gear ring.
3. When the vehicle travels at a low speed, there is no rhythm of "Ga, ga, ga" noise, and when the speed increases, it becomes a more disorderly gear crash sound and the hanging gear ring. It may be caused by the poor meshing of the gears in the transmission, such as the sound is slight and even, it can continue to run in and use, such as more serious and uneven, it should be removed for inspection. It should be readjusted or replaced if necessary;
4, the engine idle running, issued a "Ga, ga, ga" rhythmic sound, increase the throttle sound is more serious, and feel the transmission vibration phenomenon, is generally due to tooth surface spalling or tooth fracture caused by tooth, if the repair assembly dislocation, gear center offset, will also make this sound, in this case, should be disassembled inspection, if necessary to replace the new parts.
2 Gearbox bracket is broken what symptom does it have
The broken transmission bracket will produce shaking phenomenon when starting the car, reduce the stability of the car in the process of driving the car, and even lead to violent shaking of the body in serious cases.
It should be noted that the gearbox bracket needs to be replaced immediately after it is damaged. If the gearbox bracket is completely broken in the process of driving a car, the support force of the gearbox will lose balance. Whether it is an automatic transmission model or a manual transmission model, the gearbox will lead to abnormal gear change in the process of working, and very loud noise will be produced in the process of driving. In severe cases, it can also lead to gearbox damage.
After the gearbox support is damaged, the gearbox will also have a slump in the process of working. The reason for this phenomenon is that the temperature of the gearbox oil is too high, there are impurities in the gearbox oil, and the gearbox will have a slump in the process of working.
The damage of the gearbox bracket will lead to abnormal noise of the gearbox, and the gearbox will produce very loud noise in the process of working.
It should be noted that the gearbox works at high temperature for a long time, the anti-wear performance and lubrication performance of the gearbox oil will decrease, and the noise will be generated in the process of work.
