Possible causes and actions:
Low or dirty transmission fluid (ATF):
* Check ATF level and add if necessary.
* Replace ATF and filter according to manufacturer’s recommendations.
serviceability of switching solenoids:
* Shift solenoids control gear engagement.
* Check and replace faulty solenoids.
Wear of friction discs or steel plates:
* Worn friction discs or steel plates can slip, causing slipping and jerking.
* Rebuild or replace transmission if necessary.
Torque converter malfunction:
* The torque converter connects the engine to the transmission.
* Check and replace the faulty torque converter.
Output Shaft Speed Sensor (OSS) fault:
* The OSS sensor informs the transmission about the rotational speed of the output shaft.
* Check and replace the faulty OSS sensor.
Electrical problems:
* Faults in the electrical system, such as a blown fuse or faulty wire, can affect transmission performance.
* Check the electrical system and correct any problems found.
Faulty Transmission Control Module (TCM):
* The TCM controls the operation of the transmission.
* Check and replace faulty TCM.
Other possible reasons:
* Dirty Throttle Position Sensor (TPS)
*Faulty crankshaft position (CKP) sensor
* Faulty transmission fluid temperature (TFT) sensor
Note: For accurate diagnosis and repair, it is recommended that you consult a qualified transmission mechanic.