Possible causes of automatic transmission jerking in Nissan Almera Classic:
*Low automatic transmission oil level: Make sure that the transmission oil level is at the proper level. Low oil levels can cause valves and gears to malfunction, resulting in jerking.
* Dirty or old automatic transmission oil: Dirty or old oil loses its lubricating properties and can lead to wear of automatic transmission components and jerking.
* Clogged automatic transmission valve body: The valve body controls the flow of oil in the gearbox. If it is clogged, it can interfere with the valves and cause jerking.
* ?functional automatic transmission solenoid: Solenoids control the flow of oil to specific clutch packs. A faulty solenoid can result in rough shifting and jerking.
* Worn friction discs in clutch packs: Friction discs drive the automatic transmission. Wear and tear can cause slipping and jerking.
* Faulty automatic transmission torque converter: The torque converter transmits power from the engine to the automatic transmission. A faulty torque converter can cause slipping and jerking.
* Transmission electronics problems: Problems with the wiring, sensors, or automatic transmission control unit can interfere with the normal operation of the transmission and lead to jerking.
Diagnosis and elimination:
To correctly diagnose and eliminate the problem with automatic transmission jerking, it is recommended to contact a car service center. The mechanic will do the following:
* Check the level and condition of the oil in the automatic transmission.
* Will scan the automatic transmission control system for fault codes.
* Check the pressure in the automatic transmission.
* Check automatic transmission components, such as valve body, solenoids and friction discs.
Depending on the identified cause, the mechanic may suggest the following corrective measures:
* Changing automatic transmission oil and filter
* Cleaning the automatic transmission valve body
* Replacement of faulty automatic transmission solenoids
* Repair or replacement of automatic transmission clutch packs
* Repair or replacement of automatic transmission torque converter
* Repair or replacement of faulty automatic transmission electronic components