Possible reasons:
Mechanical faults:
* Worn Clutches: Over time, the clutches in the transmission can wear out, causing slipping and jerking.
* Faulty torque converter: The torque converter transfers power from the engine to the transmission. A malfunction may cause speed fluctuations and jerking.
* Solenoid problems: Solenoids control the flow of fluid in the transmission. A faulty solenoid can result in rough shifting and jerking.
*Low Transmission Fluid Level: Low fluid level can cause insufficient pressure, which affects shifting and causes jerking.
Electrical faults:
* Faulty Shift Position Sensor: This sensor tells the transmission which gear is selected. A faulty sensor may result in incorrect gear shifting.
*Wiring Problems: Damaged or loose wiring can disrupt communication between the transmission ECU and other components.
Software faults:
* Incorrect transmission ECU setting: The ECU controls the operation of the transmission. Incorrect settings can result in incorrect gear shifting and jerking.
*Outdated software: Outdated software may contain errors that affect the operation of the transmission.
Other factors:
*Rapid acceleration and deceleration: Rapid acceleration and deceleration can place excessive stress on the transmission, resulting in jerking.
*Carrying Heavy Loads: Carrying heavy loads can increase stress on the transmission and cause jerking.
* Driving at high engine speeds: Driving at high engine speeds increases the pressure in the transmission, which can cause jerking.
Solution:
To eliminate jerks when shifting gears of the automatic transmission, it is recommended to contact a service station to diagnose and repair the fault. Diagnostics may include inspecting the transmission, checking fluid levels, scanning error codes, and taking it for a test drive. Once the fault is identified, necessary repairs will be carried out, including replacing worn parts, repairing the torque converter or reprogramming the transmission ECU.