Causes of malfunction of automatic transmission

In our time the car is a trivial means of transportation. The world car industry does not stand still, and every year it pleases speed lovers with interesting novelties. One of these in its time was the automatic gearbox (automatic transmission).

What is the mechanism like most motorists? Everything is very simple. It is the automatic transmission is optimal for driving in the city (stops at traffic lights, rush hour). Those who are accustomed to drive a car in a sports style, from the "machine" is better to refuse.

Unfortunately, many motorists use their driving style to cause various malfunctions of automatic transmission. In this article we will discuss the types of malfunctions of the "machine". Plus, consider the symptoms of an automatic transmission fault.

So, if you start to notice something wrong in your car and associate this malfunction with the gearbox, first you should go to the STO operation "diagnosis of the automatic box" and check the level of the transmission fluid.

Do not ignore the indicators of the automatic transmission. For example, you notice that the O / D or O / D OFF mode flashes for no reason at all. This indicates that there are some problems associated with the electronics gearbox.

Identify the malfunctions of this type of automatic transmission will not work on your own. Here you will need to diagnose the box machine with special equipment.

Many car enthusiasts ask the same question: "Is it possible to solve the problem in the automatic transmission by myself?". Yes, you can, but you should know the exact reason.

Do not forget that the design of the "machine" is a complex device with many nodes. The best diagnosis at home is to monitor engine speed during gear changes. In normal mode, the "automatic" throws the gear up at 1.5-2,000 rpm. This is provided, if adheres to a moderate style of riding on a flat road.

If your automatic transmission is electronically controlled, the gearshift must not be accompanied by extraneous sounds. The only criterion by which you can see the transition to a higher gear is the tachometer readings. At the slightest deviation, it is necessary to act immediately, since in the near future a minor malfunction can lead to the replacement of the entire gearbox. After all, this joke is bad.

Let's talk in more detail about what kind of malfunctions AKPP occur most often and what sounds they are accompanied.

Do you notice a sound similar to howling a siren? It is worth paying attention to the torque converter. If the sound is heard only during the parking test of the Malfunction of the automatic transmission, it is not necessary to worry. It happens that there is a howling "automatic" when parking the car and during the gaining speed. In most cases, the cause may be a low oil level. Wear of rings and gaskets of the oil pump is not excluded.

If you recently replaced the gear in the car, then it is possible to install it incorrectly. When pressing on the ears, buzzing sound, which changes with the engine speed, you should pay attention to the stuffing boxes. Perhaps there was a problem with the valve spool, which is used to adjust the oil pressure.

Many car enthusiasts get a rattling sound, which is heard when the engine still does not gain a lot of speed. Here are two explanations: either the damping springs in the torque converter or the turbine pump blades have flown. In the event that the sound when changing gear changes its tonality and does not disappear in the future, it is most likely a problem in bearing bearings.

In any case, the faults of the automatic transmission are amenable to repair. It is best to turn to specialists in this matter. It is necessary to remember several situations that negatively affect the automatic box:

- extreme braking;

- Towing of other cars;

- Sharp shifting gear.

Avoiding these actions, you will significantly increase the life of the automatic box.