Automatic transmission malfunctions that appear when shifting gears:
Jumping or jolting when shifting:
* Wear of friction linings on clutch discs
* Faulty torque converters
*Low oil pressure
* Contaminated transmission oil
* Faulty solenoids
Slipping when switching:
* Wear of friction linings on clutch discs
*Low oil pressure
* Faulty torque converter
* Faulty solenoids
Switching delays:
* Faulty solenoids
*Low oil pressure
* Contaminated transmission oil
* Problems with the electronic control unit (ECU)
Failure to shift to a specific gear:
* Faulty solenoid that controls the desired gear
* Burnt friction linings
*Low oil pressure
* ECU problems
Difficulties when shifting gears manually:
* Faulty gear selector
*Broken or stretched shift cable
* Faulty solenoid that blocks manual mode
Other faults:
* Vibration or noise when shifting gears: Worn bearings, gears or transmission shafts
*Transmission oil leak: Damaged gaskets, seals or lines
* Burnt smell: Overheated transmission or burnt friction linings
* Rumble when shifting gears: Faulty torque converter or bearings