Checks you can perform yourself:
*Transmission Fluid Level: Make sure the fluid level is at the “HOT” or “MAX” mark on the dipstick.
* Fluid color and odor: Transmission fluid should be pink or reddish in color. Black or burnt color indicates problems.
* Leaks: Inspect the transmission and surrounding area for leaks or fluid drops.
*Sounds when shifting gears: Pay attention to any unusual sounds, such as vibration, buzzing or knocking, when shifting gears.
*Slip: When accelerating, check whether the transmission is slipping or not.
Diagnostic procedures that require special equipment:
Scanning trouble codes:
* Use an OBD-II scanner to look for trouble codes that may indicate transmission problems.
Checking fluid pressure:
* A technician uses a pressure gauge to measure the fluid pressure in the transmission. Low or high pressure may indicate problems with the pump, torque converter or valves.
Checking the condition of the solenoids:
* Solenoids control fluid flow in the transmission. Faulty solenoids can result in incorrect gear shifting.
Checking the condition of friction discs and steel plates:
* These components are responsible for transmitting power from the engine to the wheels. Worn or slipping friction plates can cause shifting problems or slippage.
Checking the mechatronics condition:
* Mechatronics is an electronic control module in some automatic transmissions. It is responsible for gear shifting and other functions.
Checking the condition of the torque converter:
* The torque converter transfers power from the engine to the transmission and absorbs vibrations. A faulty torque converter can lead to lockup or slippage problems.
Adviсe:
*Service the transmission regularly, following the manufacturer’s recommendations.
*Use only recommended transmission fluid.
* Avoid harsh driving and towing heavy loads.
*If you suspect transmission problems, do not delay diagnosis and repair. Delay can lead to more serious and costly problems.