Possible causes of jerking in the Chevrolet Cruze automatic transmission:
Mechanical problems:
* Worn or dirty friction discs
* Failure of solenoids
* Torque converter problems
*Low or contaminated transmission fluid
*Speed sensor malfunction
Electrical problems:
* Faulty wiring or solenoid connectors
* Problems with the transmission control module (TCM)
* Malfunction of the throttle position sensor
* Engine speed sensor malfunction
Other possible reasons:
* Clogged fuel filter
* Faulty spark plugs
* Clutch slipping (dual clutch automatic transmission)
* Problems with TCM software
Conditions under which jerking most often occurs:
*When changing gears
* Under hard acceleration
* When coasting
*When driving at low engine speeds
Diagnosis and solution to the problem:
1. Check the level and condition of the transmission fluid.
2. Diagnose the transmission using a scanner. It can identify fault codes and point to the problematic component.
3. Inspect the wiring and solenoid connectors. Replace any damaged components.
4. Check speed sensors. Replace faulty sensors.
5. See a mechanic for more complex repairs, such as replacing friction plates or solenoids.