Mechanical reasons:
* Friction wear: Over time, friction discs and bands wear out, causing the transmission to slip and overheat.
* Torque Converter Failure: The torque converter, which provides smooth gear shifting, can fail due to wear, leakage, or blockage.
* Faulty Solenoids: Solenoids inside the transmission control fluid flow and shift gears. Faulty solenoids can cause the transmission to become unstable or even fail completely.
* Planetary gear failures: The planetary gear is a system of gears inside the transmission that allows you to select different gear ratios. Failure of gear teeth, shafts or bearings can lead to planetary gear failure.
* Fluid Leaks: Transmission fluid leaks can reduce the pressure required for proper transmission operation. This can cause overheating, wear and eventually failure.
Electrical reasons:
* Sensor faults: Sensors provide information to the transmission about speed, shift lever position and other parameters. Faulty sensors may provide incorrect information, resulting in incorrect gear shifting.
* Transmission control unit (TCU) problems: The TCU is the electronic component that controls the operation of the transmission. A malfunctioning TCU can interfere with the transmission and cause it to fail.
*Wiring Problems: Damaged or corroded wiring can cause electronic components to malfunction and cause transmission failure.
Other reasons:
*Overheating: Overheating of the transmission due to excessive loads, towing heavy loads, or insufficient cooling can cause component damage.
*Lack of Maintenance: Regular transmission fluid and filter changes are critical to preventing breakdowns. Failure to adhere to the maintenance schedule can result in contaminant buildup and reduced transmission life.
* Use of inferior parts: When replacing parts in the transmission, it is important to use high quality parts from an authorized manufacturer. The use of counterfeit or unsuitable parts may result in premature failure.