Automatic Transmission Problems Guide
- service performed improperly, or not performed at all;
- factors from outside, that is, those that arise for reasons that you can not change.
Transmission problems guideIt is known that despite the fact that parts of the car and consist of metal, it can still be damaged or broken. That is why every car owner should be prepared for the fact that sooner or later in his car there may be transmission failure. To avoid serious damage to the gearbox, which can have a very negative impact on other parts of the car, perform its diagnosis and maintenance. After all, as you know, it is easier to avoid unpleasant situations than to correct them later. Moreover, it always entails significant financial costs. Read this article which is in some way a vehicle fault instruction. Perhaps the information you find here will help you avoid or eliminate many of your car’s problems.
Transmission problems that occur most often:
- fluid level below normal and presence of leaks;
- burnt liquid;
- torque converter fault;
- failure solenoid;
- defects of clutch;
- the appearance of grinding or sounds of unknown origin;
- improper engine light;
- slipping of transmission;
- problems of stalling and shifting.
Fluid level below normal and the presence of leaksAmong the most likely causes of transmission, failure can be called the level of liquid in it below the standard mark and the presence of leaks. At the same time, leaks in most cases are associated with direct transmission failure, as a result of which the liquid begins to flow out. The decrease in the fluid level is due to leakage, what may occur due to the following transmission faults:
- rusted or loose bolts and seals;
- violation of the integrity of the liquid supply line or vacuum tube;
- a crack or breakdown in the gasket or the defective drive shaft.
Burnt liquidIn the event that the transmission fluid is overfilled with dirt particles or other foreign elements, the result will be its combustion. This situation will lead to insufficient cooling and overheating of the transmission. Also, such a negative result can be an increase in the temperature of the liquid or the use of its incorrect type. If there was a burning of the liquid, you will feel the pungent smell of burning, and you can visually distinguish the burned liquid from the new, which has a red colour and a sweet glow. In the case of the dark colour of the liquid and its burnt smell, you should understand that it is necessary to replace the liquid. If you leave everything unchanged and leave the burned liquid, then, as a result, it will lead to serious transmission problems or the cessation of its functioning at all. To avoid this, it is necessary to replace the burned liquid with a new one, change the filter or the transfer flow.
Torque converter faultIt is known that cars with a manual transmission are equipped with a clutch that performs the function of connecting the engine to the transmission. But in automatic transmissions, this function is performed by the Torque Converter. It can be described as a hydraulic clutch. This part of the car starts the rotation of the engine. This has no connection with the transmission and occurs as a result of the pressurization of the transmission fluid. But the elements of torque converters are very often the cause of transmission faults, such as deformation of needle bearings. Needle bearings act as a starter separator, impeller, turbine and transducer housing. It is worth noting that it is this to do torque Converter very often fails, the frequency of such cases is very high. If while driving you hear suspicious sounds of your transmission, then the likely reason for this can be deformed bearings. In case of damage, metal parts of the transducer are contacted, resulting in debris and debris entering the transmission fluid and its flow circulating through the transmission. Breakdowns can also consist of:
- the destruction of the seal;
- outdated torque converter clutch;
- problems with torque converter clutch solenoid.
Failure solenoidThe solenoid in your car is responsible for the movement of fluid around the perimeter of the transmission. It is an electrohydraulic valve and very often fails due to a decrease in the liquid level below the standard. Its dysfunction can cause problems with the electronics of the car. The failure of fluid intake is associated with these problems. All the above have a negative impact on the operation of the transmission and can even lead to its failure.
Defects of clutchAll owners of cars with manual transmission are familiar with such an unpleasant phenomenon as traction coupling. Its essence is that when you press the clutch pedal does not disconnect the flywheel clutch disc. This situation is accompanied by a number of unpleasant consequences, as the clutch of your car with the road surface is broken or completely stops working. If during the transfer switch you merge extraneous uncharacteristic sounds and noises, then check the clutch, it is possible it is deformed and emits these sounds. If you are the owner of a car in the manual transmission, the elimination of this problem will cost you less than if your car was equipped with an automatic transmission. What reduces the ability of the clutch disc to disconnect from the flywheel? The reasons may be different, but most likely it is due to the weak clutch pedal.
- difficulties when switching gears.
The appearance of grinding or strange soundsIt so happens that when driving a car suddenly you notice the wall uncharacteristic jerks, shakes, extraneous noises and sounds. Do not panic, the problem is likely to lie in the transfer. It is worth checking it in the first place. In this way, you will be able to understand the causes of the problem. Call key for manual transaxle:
- deformation of the coupling;
- the failure of the synchronizers of the transmission;
- a damaged or worn synchronizers.