Mechanical problems:
* Wear of clutches and steel plates: Over time, transmission clutches and steel plates wear out, causing slippage and reduced torque transmission efficiency.
* Damage to the torque converter: The torque converter transmits torque from the engine to the transmission. Damage to the housing or blades can lead to slippage or complete failure of the gearbox.
* Planetary gears and differential malfunctions: The planetary gears and differential transmit and distribute torque. Failure of these parts can result in noise, vibration and transmission failure.
Problems with the hydraulic system:
*Low Transmission Fluid Level: Insufficient fluid level can result in insufficient pressure, causing the transmission to slip and overheat.
* Clogged or contaminated fluid: Contaminated or clogged fluid can block oil passages and reduce the efficiency of the hydraulic system.
* Valve unit malfunction: The valve body controls the flow of fluid through the transmission. Its malfunction can lead to incorrect gear shifting or complete failure.
Electronic control problems:
* Electronic Sensor Failures: Sensors that monitor engine speed, position and RPM may provide incorrect information to the transmission controller, resulting in incorrect gear shifting or failure.
*Transmission Controller Malfunctions: The transmission controller controls the solenoid valves that control fluid flow. Malfunctions in the controller can lead to incorrect gear shifting or complete failure.
Other reasons:
* Towing Excessive Loads: Towing heavy loads can cause overheating and damage to the transmission.
* Aggressive driving: Fast accelerations and sudden stops can place peak stress on the transmission, leading to premature wear.
* No Maintenance: Regular transmission fluid and filter changes help prevent wear and contamination, extending transmission life.