Greetings to you, friends. Automatic transmission cars are becoming increasingly popular among motorists. Even in a driver’s license there was a special category for driving a vehicle with an automatic. However, with all its advantages, the automatic box has a significant drawback. In case of breakdown, the cost of repair can be calculated tens of thousands of rubles. Therefore, it is necessary to check the serviceability of the automatic transmission when buying a car in the secondary market. How to do it? This will be discussed today.
Visual inspection
The worst enemy of the automatic transmission is overheating. You can “burn” the box by setting in the snow or on a dancing ground for about twenty to thirty minutes. Automatic boxes are complex technical devices and, for complete calm, it is better to diagnose in a specialized service. But diagnostics costs money, and as a rule, the buyer pays them. So, in order not to pay extra money, the initial diagnosis can be carried out independently. Better to start with an external inspection. There should not be a fluxes on the box. But the perfectly clean case should also alert. Perhaps the automatic transmission was specially wiped. Try to find out the history of the car. If there is information that the box has already been repaired, it is better to refuse such a purchase right away. As a rule, after repairing the automatic transmission, they do not last long. One of the reasons is that there are very few qualified masters in our workshops. Therefore, even minor flaws in the repair will affect very quickly. You should not buy a car equipped with a towbar, the towing of heavy cargo does not in the best way affect the state of automatic transmission.
Checking the oil level
The oil should be red or light – brown and not have the smell of burning
Now check the oil level. This must be done when the engine operating at idle. The rest is the same as the checking of the oil level in the motor. We remove the probe, wipe it and insert it back, after which we remove it again and look at the level. Naturally, it should be normal. Now we wipe the probe with clean white paper and look at the oil stain in the light. There should not be metal interspersed in oil. Its color should be red or light – brown. If the oil is black and the smell gives it with a burn, then the box was “plunged”. Such a car can be further not inspected. Unfortunately, on modern automatic transmission, you can only check the oil level in the workshop, since they have no probe.
In this case, the check on the go will help. Run the engine and let it warm up a little. The automatic transmission selector must be in position “R”. When the revolutions drop, we transfer the selector to position “D”, the car must significantly go forward. Switching should occur easily, without jerks and extraneous sounds. Now we translate the box selector to the “n” position of the automatic transmission should turn off. Turn on the back speed, position “R”. There should not be delays in connecting the box. Even a slowdown of more than 1 second indicates that the box will require repairs in the near future
Test arrival
When switching the automatic transmission, there should be no jerks and delays
If there are no comments on the work of the “automatic”, we proceed to the test in the movement. We smoothly accelerate to 60 km/h. During this time, the box should at least twice change the gears. This moment is determined by a slight change in the sound of a working engine and the movement of the tachometer arrow. Jerks or blows should not be. Their presence is the first sign of a worn box. Acceleration should be even without failures and slippers. This is when with an increase in speed, the speed does not increase. It is advisable when checking the automatic transmission to wait until it warms up. It happens that malfunctions do not appear immediately. If at least one of the listed defects arises, it is better to look for another car.
I recommend that you read the article “Each automatic transmission – 8 rules to avoid problems”, “Automatic gearbox. What types of automatic transmission are there “.
If the information stated was useful for you, leave your comments in the comments below.
