The causes of impacts in the automatic transmission while driving can be:
Mechanical problems:
* Worn or damaged friction plates: They transfer power from the engine to the transmission, and wear and tear can lead to slipping and slamming.
* Torque Converter Problems: It transfers power from the engine to the transmission and is responsible for smooth gear shifting. Torque converter malfunctions can cause vibration and shock.
* Malfunctioning valves or solenoids: These control the flow of fluid in the transmission and enable gear shifting. Their malfunction can lead to sharp jolts when changing gears.
Fluid problems:
*Low Fluid: Low fluid can cause the transmission to overheat and become damaged, causing knocks.
* Contaminated Fluid: Over time, impurities and deposits build up in the fluid, which can clog valves and solenoids and cause jerking.
Electrical problems:
* Faulty speed sensor: It transmits wheel speed information to the transmission. A faulty sensor can cause the transmission to malfunction and lead to knocks.
*Wiring Problems: Faulty wires can cause problems transmitting signals to the transmission, which can cause knocks.
Other possible reasons:
* Incorrect automatic transmission fluid: Using the wrong fluid can cause lubrication and shifting problems.
* Delayed maintenance: Failure to replace fluid and filters promptly can lead to deposit build-up and transmission failure.
What to do if the automatic transmission breaks:
* Stop the car in a safe place.
* Check the gearbox fluid level and top up if necessary.
* Scan the vehicle for error codes that may indicate a problem.
* Have the transmission diagnosed and repaired by a qualified mechanic.