Possible reasons:
*Low transmission fluid level. Check the fluid level and add if necessary.
* Problems with filters. Dirty or clogged filters can restrict fluid flow and cause jerking.
* Malfunction of solenoids. Solenoids control the gears, and if they fail, they can cause shifting problems.
* Worn or damaged planetary set. The planetary gear set is the primary transmission mechanism in automatic transmissions and wear or damage can cause jerking.
* Problems with the torque converter. The torque converter transfers power from the engine to the transmission, and a malfunctioning torque converter can cause jerking.
* Electrical problems. Electrical problems can affect transmission performance and cause jerking.
What to do:
* Check the fluid level. If it is low, add the correct type of fluid and check for leaks.
* replace filters. Replace filters according to manufacturer’s recommendations.
* Diagnose the solenoids. Use a trouble code scanner or take it to a repair shop to diagnose faulty solenoids.
*Check the planetary set. This is a complex repair that should be left to an experienced mechanic.
* Check the torque converter. A faulty torque converter may require replacement.
* Check the electrical. Check the electrical diagrams and contact a repair shop if you find any problems.
Additional tips:
* Be gentle with the gas pedal. Avoid sudden acceleration and gear changes.
*Service the gearbox regularly. Changing the fluid and filters according to the manufacturer’s recommendations will help extend the life of the transmission.
*Use the transmission fluid recommended by the manufacturer.
* Avoid towing heavy loads as this may overload the transmission.